Landscape layers and associated watershed metrics. Grey-colored rows provide descriptions of geospatial landscape layers. Below the description of each landscape layer, we provide a list of metrics that were derived from this layer for both local catchments (Cat) and watersheds (Ws). Human-related metrics (e.g., urbanization) are colored pink. Metrics associated with natural variation in landscapes are colored light blue.    
Landscape Layer Resolution Data Type Units Source
NHDPlus(NHDPlus Region ID).shp – GIS line shapefile of the National Hydrography Dataset (version 2.1) representing all stream networks and hydrologic connections within the CONUS based on digitized 100-K USGS topographic quadrangles. Lines represent stream networks that are divided into segments, where each segment represents a section of river between upstream (except for headwater segments) and downstream confluences. Each segment has been attributed with several physical stream characteristics, such as local catchment and upstream watershed areas,  segment slope, mean segment elevation, and mean upstream catchment air temperature (from PRISM climate data). In addition to natural hydrologic features, the NHDPlustV2_1 includes canals, ditches, and piplines.  Download date: 10 Feb 2014 100K Quad 100K Quad NA http://www.horizon-systems.com/NHDPlus/NHDPlusV2_home.php
Rp100(NHDPlus Region ID) – GIS raster used to confine landscape metric calculations to within ~100 meters on each side of the NHDPlus stream network. The raster was developed from the NHDPlus stream network and the NLCD open water class to create accurate water boundaries. The NHD boundaries were found with the NHDFlowline.shp file selecting out the lines with an FType equal to 'Artificial Path', 'Connector', or 'StreamRiver' and converting to a raster using the PolylineToRaster tool. The RegionGroup tool and Conditional statements produced the water boundary raster to measure the buffer from using the Euclidean Distance tool. Pixels with distance values ≤100 were converted to value=1 and all else remained NoData (Conditional function of the ArcGIS Spatial Analyst Extension). A raster was created for each NHDPlus Region to facilitate processing and the NHDPlus Region ID was appended to the raster name. NHD Plus v. 2.1 download date:  10 Feb 2014. NLCD download date:  15 Nov 2011. RipBuf100 creation date: 16 Sept 2015 30m X 30m Categorical raster NA NA - Made in house
elev_cm - GIS raster of elevation values. Obtained from the NHDPlusV2 snapshot of the National Elevation Datasets (NED). Data are distributed through NHDPlusV2 website by HydroRegion. 30m X 30m Continuous raster cm http://www.horizon-systems.com/NHDPlus/NHDPlusV2_home.php
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  CanalDensCat, CanalDensWs – Density of NHDPlus line features classified as canal, ditch, or pipeline within the local catchment (Cat) and upstream watershed (Ws).  km/km2 Disturbance Infrastructure Watershed Falcone et al. 2010 Local catchment: Vc=∑xicAc, where xi is the length of line segment i of hydrologic type canal, ditch, or pipline in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total length of NHD line features composed of canals, ditches, or pipelines within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). CanalDensity_<RegionID>.csv, CanalDensity_<StateID>.csv
  WsAreaSqKm – Watershed area at NHDPlus stream segment outlet, i.e., at the most downstream location of the vector line segment. km2 Natural Topography Watershed Wang et al. 2011 NA All tables
  CatAreaSqKm – Area of local NHDPlus catchments. Local catchment areas were used  to weight local-catchment means of landscape layers to calculate full watershed metrics. km2 Natural Topography Local catchment Wang et al. 2011 NA All tables
  ElevCat, ElevWs – Mean of all elev_cm values within the local catchment (Cat) and upstream watershed (Ws) divided by 100 to convert cm to m. m Natural Topography Watershed Carlisle et al. 2009 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). Elevation_<RegionID>.csv, Elevation_<StateID>.csv
Landscape Layer Resolution Data Type Units Source  
nlcd2006.tif – The National Land Cover Database is a GIS raster of 14 natural land cover and 6 anthropogenic land use classes. Natural land cover classes: 11-water, 12-perrenial snow/ice, 13-barren land, 41-deciduous forest, 42-conifer forest, 43-mixed forest, 71-grassland/herbaceous, 90-woody wetlands, 91-ermergent herbaceous wetlands. Anthropogenic land use classes: 21-developed, open space, 22-developed, low intensity, 23-developed, medium intensity, 24-developed, high intensity, 81-pasture/hay, 82-cultivated crops. Download date: 15 Nov 2011 30m X 30m Categorical raster NA http://www.mrlc.gov/nlcd06_data.php
  Landscape Metrics Units Class Metric Type Scale Reference Formulas StreamCat Table Name
  PctUrbHi2006Cat, PctUrbHi2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, high intensity land use. Derived from the nlcd2006.tif  (class 24) landscape raster. % Disturbance Urban Watershed Wang et al. 2011, Carlisle et al. 2009 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctUrbHi2006CatRp100, PctUrbHi2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, high intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 24) landscape layers. % Disturbance Urban Watershed Wang et al. 2011, Carlisle et al. 2009 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctUrbMd2006Cat, PctUrbMd2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, medium intensity land use. Derived from the nlcd2006.tif  (class 23) landscape raster. % Disturbance Urban Watershed Wang et al. 2011, Carlisle et al. 2009 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctUrbMd2006CatRp100, PctUrbMd2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, medium intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 23) landscape layers. % Disturbance Urban Riparian Wang et al. 2011, Carlisle et al. 2009 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctUrbLo2006Cat, PctUrbLo2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, low intensity land use. Derived from the nlcd2006.tif  (class 22) landscape raster. % Disturbance Urban Watershed Wang et al. 2011, Carlisle et al. 2009 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctUrbLo2006CatRp100, PctUrbLo2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, low intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 22) landscape layers. % Disturbance Urban Riparian Wang et al. 2011, Carlisle et al. 2009 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctUrbOp2006Cat, PctUrbOp2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, open space land use. Derived from the nlcd2006.tif  (class 21) landscape raster. % Disturbance Urban Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctUrbOp2006CatRp100, PctUrbOp2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, open space land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 21) landscape layers. % Disturbance Urban Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctCrop2006Cat, PctCrop2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as row crop land use. Derived from the nlcd2006.tif  (class 82) landscape raster. % Disturbance Agriculture Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctCrop2006CatRp100, PctCrop2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as crop land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 82) landscape layers. % Disturbance Urban Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctHay2006Cat, PctHay2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as pasture/hay land use. Derived from the nlcd2006.tif  (class 81) landscape raster. % Disturbance Agriculture Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctHay2006CatRp100, PctHay2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as pasture/hay land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 81) landscape layers. % Disturbance Agriculture Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctDecid2006Cat, PctDecid2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as deciduous forest land cover. Derived from the nlcd2006.tif  (class 41) landscape raster. % Natural Land Cover Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctDecid2006CatRp100, PctDecid2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as deciduous forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 41) landscape layers. % Natural Land Cover Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctConif2006Cat, PctConif2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as evergreen forest land cover. Derived from the nlcd2006.tif  (class 42) landscape raster. % Natural Land Cover Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctConif2006CatRp100, PctConif2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as evergreen forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 42) landscape layers. % Natural Land Cover Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctMxFst2006Cat, PctMxFst2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as mixed deciduous/evergreen forest land cover. Derived from the nlcd2006.tif  (class 43) landscape raster. % Natural Land Cover Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctMxFst2006CatRp100, PctMxFst2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as mixed deciduous/evergreen forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 43) landscape layers. % Natural Land Cover Riparian Wang et al. 2011, Carlisle et al. 2009 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctBl2006Cat, PctBl2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as areas of bedrock, desert pavement, scarps, talus, slides, volcanic materical, glacial debris, sand dunes, strip mines, gravel pits, and other accumulations of earthen material. Derived from the nlcd2006.tif  (class 31) landscape raster. % Natural Land Cover Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctBl2006CatRp100, PctBl2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as areas of bedrock, desert pavement, scarps, talus, slides, volcanic materical, glacial debris, sand dunes, strip mines, gravel pits, and other accumulations of earthen material within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 31) landscape layers. % Natural Land Cover Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctOw2006Cat, PctOw2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as open water land cover. Derived from the nlcd2006.tif  (class 11) landscape raster. % Natural Land Cover Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctOw2006CatRp100, PctOw2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as open water land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 11) landscape layers. % Natural Land Cover Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctIce2006Cat, PctIce2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as ice/snow land cover. Derived from the nlcd2006.tif  (class 12) landscape raster. % Natural Land Cover Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctIce2006CatRp100, PctIce2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as ice/snow land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 12) landscape layers. % Natural Land Cover Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctHbWet2006Cat, PctHbWet2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as herbaceous wetland land cover. Derived from the nlcd2006.tif  (class 95) landscape raster. % Natural Land Cover Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctHbWet2006CatRp100, PctHbWet2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as emergent herbaceous wetland land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 95) landscape layers. % Natural Land Cover Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctWdWet2006Cat, PctWdWet2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as woody wetland land cover. Derived from the nlcd2006.tif  (class 90) landscape raster. % Natural Land Cover Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctWdWet2006CatRp100, PctWdWet2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as woody wetland land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 90) landscape layers. % Natural Land Cover Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctShrb2006Cat, PctShrb2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as shrub/scrub land cover. Derived from the nlcd2006.tif  (class 52) landscape raster. % Natural Land Cover Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctShrb2006CatRp100, PctShrb2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as shrub/scrub land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 52) landscape layers. % Natural Land Cover Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
  PctGrs2006Cat, PctGrs2006Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as grassland/herbaceous land cover. Derived from the nlcd2006.tif  (class 71) landscape raster. % Natural Land Cover Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2006_<RegionID>.csv, NLCD2006_<StateID>.csv
  PctGrs2006CatRp100, PctGrs2006WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as grassland/herbaceous land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2006.tif (class 71) landscape layers. % Natural Land Cover Riparian Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2006_RipBuf100_<RegionID>.csv, NLCD2006_RipBuf100_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
midslope_mask.tif – Raster mask used to identify agricultural lands occurring slope values greater than or equal to 10% . Raster was derived from the NHDPlusV2 snapshot of the  National Elevation Dataset digital elevation models (DEM). DEM downloaded with NHD Plus v. 2.1; download date: 10 Feb 2014  30m X 30m Categorical raster NA NA - Made in house
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  PctAg2006Slp10Cat, PctAg2006Slp10Ws – % of the local catchment (Cat), and upstream watershed (Ws) classified as agriculture (NLCD classes 81 and 82) occurring on slopes ≥10%. Derived from the intersection of midslope_mask.tif with nlcd2006.tif (classes 81 and 82) . % Disturbance Agriculture Watershed Carlisle et al. 2009 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of the grid SlpClass of slope class 1 with the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of the grid SlpClass of slope class 1 with and catchment c and nc is the count of pixels across all land cover classes in the intersection of this slope class and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). AgMidHiSlopes_<RegionID>.csv, AgMidHiSlopes_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
hislope_mask.tif – Raster mask used to identify agricultural lands occurring slope values greater than or equal to 20% . Raster was derived from the NHDPlusV2 snapshot of the  National Elevation Dataset digital elevation models (DEM). DEM downloaded with NHD Plus v. 2.1; download date: 10 Feb 2014  30m X 30m Categorical raster NA NA - Made in house
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  PctAg2006Slp20Cat, PctAg2006Slp20Ws – % of the local catchment (Cat), and upstream watershed (Ws) classified as agriculture (NLCD classes 81 and 82) occurring on slopes ≥10%. Derived from the intersection of hislope_mask.tif with nlcd2006.tif (classes 81 and 82) . % Disturbance Agriculture Watershed Carlisle et al. 2009 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of the grid SlpClass of slope class 2 with the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of the grid SlpClass of slope class 2 with and catchment c and nc is the count of pixels across all land cover classes in the intersection of this slope class and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). AgMidHiSlopes_<RegionID>.csv, AgMidHiSlopes_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
imp2006.tif – Raster from the 2006 National Land Cover Dataset of the % of each 30-m pixel that is composed of impervious anthropogenic materials (e.g., parking surfaces, roads, building roofs).  Download date: 15 Nov 2011. 30m X 30m Continuous raster % http://www.mrlc.gov/nlcd06_data.php (Yang et al. 2003)
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  PctImpCat, PctImpWs – Mean of imp2006 values within the local catchment (Cat) and upstream watershed (Ws). % Disturbance Infrastructure Watershed Carlisle et al. 2009 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). ImperviousSurfaces2006_<RegionID>.csv, ImperviousSurfaces2006_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
wtdep.tif – Raster of seasonal water table depth of soils from the State Soils Geographic (STATSGO) Database. Original units = feet. Download date: 06 Jan 2014. 1km X 1km Continuous raster cm NA - Internal FTP from James Falcone of USGS
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  WtDepCat, WtDepWs – Mean of all wtdep values within the local catchment (Cat) and upstream watershed (Ws). cm Natural Soils Watershed Carlisle et al. 2009 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). STATSGO_Set2_<RegionID>.csv, STATSGO_Set2_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
om.tif – Raster of organic matter content (% by weight) of soils from State Soil Geographic (STATSGO) Database. Download date: 06 Jan 2014 1km X 1km Continuous raster % NA - Internal FTP from James Falcone of USGS
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  OmCat, OmWs – Mean of all om values within the local catchment (Cat) and upstream watershed (Ws). % Natural Soils Watershed Carlisle et al. 2009 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). STATSGO_Set2_<RegionID>.csv, STATSGO_Set2_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
perm.tif – Raster of permeability of soils from the State Soil Geographic (STATSGO) Database.  Original units = inches/hour.  Download date: 06 Jan 2014 1km X 1km Continuous raster cm/hour NA - Internal FTP from James Falcone of USGS
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  PermCat, PermWs – Mean of all perm values within the local catchment (Cat) and upstream watershed (Ws). cm/hour Natural Soils Watershed Carlisle et al. 2009, Wang et al. 2011 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). STATSGO_Set2_<RegionID>.csv, STATSGO_Set2_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
rckdep.tif – Raster of depth to bedrock of soils from the State Soil Geographic (STATSGO) Database.  Original units = inches.  Download date: 06 Jan 2014 1km X 1km Continuous raster cm NA - Internal FTP from James Falcone of USGS
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  RckDepCat, RckDepWs – Mean of all rckdep values within the local catchment (Cat) and upstream watershed (Ws). cm Natural Soils Watershed Carlisle et al. 2009, Wang et al. 2011 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed mean: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). STATSGO_Set2_<RegionID>.csv, STATSGO_Set2_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
clay.tif – Raster of % clay content of soils from the State Soil Geographic (STATSGO) Database.  Download date: 06 Jan 2014 1km X 1km Continuous raster % NA - Internal FTP from James Falcone of USGS
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  ClayCat, ClayWs – Mean of all clay values within the local catchment (Cat) and upstream watershed (Ws). % Natural Soils Watershed Carlisle et al. 2009 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). STATSGO_Set1_<RegionID>.csv, STATSGO_Set1_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
sand.tif – Raster of % sand content of soils from the State Soil Geographic (STATSGO) Database.  Download date: 06 Jan 2014 1km X 1km Continuous raster % NA - Internal FTP from James Falcone of USGS
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  SandCat, SandWs – Mean of all sand values within the local catchment (Cat) and upstream watershed (Ws). % Natural Soils Watershed Carlisle et al. 2009 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). STATSGO_Set1_<RegionID>.csv, STATSGO_Set1_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
NID.shp – Shapefile of georeferenced dam locations (points) and associated dam and reservoir characteristics (where available), such as dam height, reservoir volume, and year constructed from the National Inventory of Dams. The dataset contains two measures of reservoir volume: NORM_STORA and NID_STORAG. The US Army Corps of Engineers defines these fields respectively as the typical and maximum volumes stored within reservoirs. The original volume units (acre-feet) were converted to cubic meters (acre-feet * 1233.48).  Download date: 20 Sep 2013 NA Point Vector Data Location (latitiude/longitude), volume (m3)  USACE (US ARMY CORPS OF ENGINEERS). 2009. National inventory of dams. US Army Corps of Engineers, Washington, DC.  (Available from: http://geo.usace.army.mil/pgis/f?p=397:1:0:) We used modified NID shapefile (NID download from  Army Corps in August 2010) and modified by Jeff Simley (head of NHD program).  Sites were modified to have their locations verified on NHDPlus stream reaches. Downloaded from: ftp://ftpext.usgs.gov/pub/er/va/reston/NAWQA_ENS/GIS_DATA/dams/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  DamDensCat, DamDensWs – Density of georeferenced dams within the local catchment (Cat) and upstream watershed (Ws). dams/km2 Disturbance Infrastructure Watershed Wang et al. 2011 Local catchment: Vc=∑xicAc, where xi is the presence of point i in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Dams_<RegionID>.csv, Dams_<StateID>.csv
  DamNrmStorCat, DamNrmStorWs – Volume all reservoirs (NORM_STORA in NID) per unit area of the local catchment (Cat) and upstream watershed (Ws).  m3/km2 Disturbance Infrastructure Watershed Falcone et al. 2010 Local catchment: Vc=∑xicAc, where xi is the value of point i in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the sum of point values within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Dams_<RegionID>.csv, Dams_<StateID>.csv
  DamNIDStorCat, DamNIDStorWs –  Volume all reservoirs (NID_STORA in NID) per unit area of the local catchment (Cat) and upstream watershed (Ws).  m3/km2 Disturbance Infrastructure Watershed Falcone et al. 2010 Local catchment: Vc=∑xicAc, where xi is the value of point i in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the sum of point values within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Dams_<RegionID>.csv, Dams_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
popden2010.tif – Raster of population density derived from  an ESRI shapefile of block group-level 2010 US Census data. Density was calculated as block group population / block group area. This shapefile was then converted to 90m x 90m resolution raster. Download date: 14 Feb 2014 90m x 90m Continuous raster people/km2 http://www.gisnuts.com/terra/BGSF1v10/SF1_F GDB_US_BLOCKGROUP.zip

  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  PopDen2010Cat, PopDen2010Ws – Mean of all popden2010 values within the local catchment (Cat) and upstream watershed (Ws). people/km2 Disturbance Urban Watershed Falcone et al. 2010, Wang et al. 2011 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). USCensus2010_<RegionID>.csv, USCensus2010_<StateID>.csv
  PopDen2010CatRp100, PopDen2010WsRp100 – Mean of all popden2010 values within the local catchment (Cat) and upstream watershed (Ws) within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between Rp100 and popden2010 landscape layers. people/km2 Disturbance Urban Riparian Falcone et al. 2010, Wang et al. 2011 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the intersection of the 100-m buffer of the NHD stream line and the local catchment c. Full watershed: Pw,i=∑xc,i/∑nc cϵw, where xc,i is the sum of raster pixel values within the intersection of a 100-m buffer of the NHD stream line and catchment c and and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). USCensus2010_<RegionID>.csv, USCensus2010_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
huden.tif – Raster of housing unit density derived from  an ESRI shapefile of block group-level 2010 US Census data. Density was calculated as block-group total housing units / block group area. This shapefile was then converted to a 90m x 90m resolution raster. Download date: 14 Feb 2014 90m x 90m Continuous raster housing units/km2 http://www.gisnuts.com/terra/BGSF1v10/SF1_F GDB_US_BLOCKGROUP.zip

  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  HUDen2010Cat, HUDen2010Ws – Mean of all huden values within the upstream watershed. housing units/km2 Disturbance Urban Watershed Falcone et al. 2010 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). USCensus2010_<RegionID>.csv, USCensus2010_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
NPDES_Major.shp – Shapefile of georeferenced locations (points) of Clean Water Act permitted dischargers under the National Pollutant Discharge Elimination System (NPDES). Download date: 26 Feb 2014 NA Point Vector Data Location (latitiude/longitude) http://www.epa.gov/enviro/geo_data.html and http://www.epa.gov/enviro/facts/qmr.html
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  NPDESDensCat, NPDESDensWs – Density of georeferenced NPDES sites (NPDES_Major.shp) within the local catchment (Cat) and upstream watershed (Ws). sites/km2 Disturbance Pollution Watershed Wang et al. 2011 Local catchment: Vc=∑xicAc, where xi is the presence of point i in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). EPA_FRS_<RegionID>.csv, EPA_FRS_<StateID>.csv
  NPDESDensCatRp100, NPDESDensWsRp100 – Density of georeferenced NPDES sites (NPDES_Major.shp) within the local catchment (Cat) and upstream watershed (Ws) within a 100-m buffer (Rp100) of the NHD stream lines. Derived as the intersection between RpRp100 and NPDES_Major.shp landscape layers. sites/km2 Disturbance Pollution Riparian Wang et al. 2011 Local catchment: Vc=∑xicAc, where xi is the presence of point i within the intersection of catchment c and a 100-m buffer of the stream line, πc is the proportion of this intersection of catchment c within USA borders, and Ac is the area of this intersection with catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within the intersection of catchment c and a 100-m buffer of the stream line, πc is the proportion of this intersection of catchment c within USA borders, and Ac is the area of this intersection with catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). EPA_FRS_<RegionID>.csv, EPA_FRS_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
TRI.shp – Shapefile of georeferenced locations (points) of the Toxic Release Inventory (TRI). The TRI monitors the use, recycling, disposal, and release of over 650 toxic chemicals. Download date: 26 Feb 2014 NA Point Vector Data Location (latitiude/longitude) http://www.epa.gov/enviro/geo_data.html and http://www.epa.gov/enviro/facts/qmr.html
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  TRIDensCat, TRIDensWs – Density of georeferenced Toxic Release Inventory sites (TRI.shp) within the local catchment (Cat) and upstream watershed (Ws). sites/km2 Disturbance Pollution Watershed Wang et al. 2011 Local catchment: Vc=∑xicAc, where xi is the presence of point i in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). EPA_FRS_<RegionID>.csv, EPA_FRS_<StateID>.csv
  TRIDensCatRp100, TRIDensWsRp100 – Density of georeferenced Toxic Release Inventory sites (TRI.shp) within the local catchment (Cat) and upstream watershed (Ws) within a 100-m buffer (Rp100) of the NHD stream lines. Derived as the intersection between RpRp100 and TRI.shp landscape layers. sites/km2 Disturbance Pollution Riparian Wang et al. 2011 Local catchment: Vc=∑xicAc, where xi is the presence of point i within the intersection of catchment c and a 100-m buffer of the stream line, πc is the proportion of this intersection of catchment c within USA borders, and Ac is the area of this intersection with catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within the intersection of catchment c and a 100-m buffer of the stream line, πc is the proportion of this intersection of catchment c within USA borders, and Ac is the area of this intersection with catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). EPA_FRS_<RegionID>.csv, EPA_FRS_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
Superfund.shp – Shapefile of georeferenced locations (points) of Superfund sites. The Superfund program is designed to identify and clean up locations with uncontrolled hazardous waste. Download date: 26 Feb 2014 NA Point Vector Data Location (latitiude/longitude) http://www.epa.gov/enviro/geo_data.html and http://www.epa.gov/enviro/facts/qmr.html
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  SuperfundDensCat, SuperfundDensWs – Density of georeferenced Superfund sites (Superfund.shp) within the local catchment (Cat) and upstream watershed (Ws). sites/km2 Disturbance Pollution Watershed Wang et al. 2011 Local catchment: Vc=∑xicAc, where xi is the presence of point i in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). EPA_FRS_<RegionID>.csv, EPA_FRS_<StateID>.csv
  SuperfundDensCatRp100, SuperfundDensWsRp100 – Density of georeferenced Superfund sites (Superfund.shp) within the local catchment (Cat) and upstream watershed (Ws) within a 100-m buffer (Rp100) of the NHD stream lines. Derived as the intersection between RpRp100 and Superfund.shp landscape layers. sites/km2 Disturbance Pollution Riparian Wang et al. 2011 Local catchment: Vc=∑xicAc, where xi is the presence of point i within the intersection of catchment c and a 100-m buffer of the stream line, πc is the proportion of this intersection of catchment c within USA borders, and Ac is the area of this intersection with catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within the intersection of catchment c and a 100-m buffer of the stream line, πc is the proportion of this intersection of catchment c within USA borders, and Ac is the area of this intersection with catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). EPA_FRS_<RegionID>.csv, EPA_FRS_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
mines.shp – Shapefile of georeferenced locations (points) of mines and mineral plants in the USA that were considered active in 2003. Download date: 27 Jan 2014 NA Point Vector Data Location (latitiude/longitude) http://tin.er.usgs.gov/mineplant/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  MineDensCat, MineDensWs – Density of georeferenced mine sites (mines.shp) within the local catchment (Cat) and upstream watershed (Ws). sites/km2 Disturbance Pollution Watershed Wang et al. 2011 Local catchment: Vc=∑xicAc, where xi is the presence of point i in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Mines_<RegionID>.csv, Mines_<StateID>.csv
  MineDensCatRp100, MineDensWsRp100 – Density of georeferenced mine sites (mines.shp) within the local catchment (Cat) and upstream watershed (Ws) within a 100-m buffer (Rp100) of the NHD stream lines. Derived as the intersection between RpRp100 and mines.shp landscape layers. sites/km2 Disturbance Pollution Riparian Wang et al. 2011 Local catchment: Vc=∑xicAc, where xi is the presence of point i within the intersection of catchment c and a 100-m buffer of the stream line, πc is the proportion of this intersection of catchment c within USA borders, and Ac is the area of this intersection with catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within the intersection of catchment c and a 100-m buffer of the stream line, πc is the proportion of this intersection of catchment c within USA borders, and Ac is the area of this intersection with catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Mines_<RegionID>.csv, Mines_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
us_lithology_1km.tif – GIS raster of 18 surficial lithology material classes for the conterminous USA that were derived based on the "texture, internal structure, thickness, and environment of deposition or formation of materials" (see http://rmgsc.cr.usgs.gov/ecosystems/usa.shtml). Lithology classes: 1-Carbonate residual material, 3-Non-Carbonate Residual Material, 4-Alkaline Intrusive Volcanic Rock, 5-Silicic Residual Material, 7-Extrusive Volcanic Rock, 8-Colluvial Sediment, 9-Glacial Till, Clayey, 10-Glacial Till, Loamy, 11-Glacial Till, Coarse-Textured, 12 & 14-Glacial Outwash and Glacial Lake Sediment, Coarse-Textured, 13-Glacial Lake Sediment, Fine-Textured, 15-Hydric, Peat and Muck, 16-Eolian Sediment, Coarse-Textured (Sand Dunes), 17-Eolian Sediment, Fine-Textured (Glacial Loess), 18-Saline Lake Sediment, 19-Alluvium and Fine-Textured Coastal Zone Sediment, 20-Coastal Zone Sediment, Coarse-Textured, 22-Water. Download date: 24 Feb 2014 1km X 1km Categorical raster NA http://rmgsc.cr.usgs.gov/ecosystems/usa.shtml
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  PctCarbResidCat, PctCarbResidWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: carbonate residual material. Derived from the us_lithology_1km.tif  (class 1) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctNonCarbResidCat, PctNonCarbResidWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: non-carbonate residual material. Derived from the us_lithology_1km.tif  (class 3) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctAlkIntruVolCat, PctAlkIntruVolWs – % of the upstream watershed area classified as lithology type: alkaline intrusive volcanic rock. Derived from the us_lithology_1km.tif  (class 4) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctSilicicCat, PctSilicicWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: silicic residual material. Derived from the us_lithology_1km.tif  (class 5) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctExtruVolCat, PctExtruVolWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: extrusive volcanic rock. Derived from the us_lithology_1km.tif  (class 7) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctColluvSedCat, PctColluvSedWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: colluvial sediment. Derived from the us_lithology_1km.tif  (class 8) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctGlacTilClayCat, PctGlacTilClayWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: glacial till, clayey. Derived from the us_lithology_1km.tif  (class 9) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctGlacTilLoamCat, PctGlacTilLoamWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: glacial till, loamy. Derived from the us_lithology_1km.tif  (class 10) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctGlacTilCrsCat, PctGlacTilCrsWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: glacial till, coarse-textured. Derived from the us_lithology_1km.tif  (class 11) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctGlacLakeCrsCat, PctGlacLakeCrsWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: glacial outwash and glacial lake sediment, coarse-textured. Derived from the us_lithology_1km.tif  (classes 12 & 14) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctGlacLakeFineCat, PctGlacLakeFineWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: glacial lake sediment, fine-textured. Derived from the us_lithology_1km.tif  (classes 13) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctHydricCat, PctHydricWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: hydric, peat and muck. Derived from the us_lithology_1km.tif  (classes 15) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctEolCrsCat, PctEolCrsWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: eolian sediment, coarse-textured (sand dunes). Derived from the us_lithology_1km.tif  (classes 16) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctEolFineCat, PctEolFineWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: eolian sediment, fine-textured (glacial loess). Derived from the us_lithology_1km.tif  (classes 17) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctSalLakeCat, PctSalLakeWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: saline like sediment. Derived from the us_lithology_1km.tif  (classes 18) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctAlluvCoastCat, PctAlluvCoastWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: alluvium and fine-textured coastal zone sediment. Derived from the us_lithology_1km.tif  (classes 19) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctCoastCrsCat, PctCoastCrsWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: coastal zone sediment, coarse-textured. Derived from the us_lithology_1km.tif  (classes 20) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
  PctWaterCat, PctWaterWs – % of the local catchment (Cat) and upstream watershed (Ws) classified as lithology type: water. Derived from the us_lithology_1km.tif  (classes 22) landscape raster. % Natural Lithology Watershed Wang et al. 2011 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). Lithology_<RegionID>.csv, Lithology_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
rddens.tif – Raster of road density calculated using 2010 Census Tiger Line files and the ArcGIS Line Density tool (http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/How_Line_Density_works/009z00000012000000/). Download date: 06 March 2014 1km X 1km  Continuous raster km/km2 ftp2.census.gov/geo/pvs/tiger2010st/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  RdDensCat, RdDensWs – Mean of all rddens values within the local catchment (Cat) and upstream watershed (Ws). km/km2 Disturbance Infrastructure Watershed Falcone et al. 2010 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). RoadDensity_<RegionID>.csv, RoadDensity_<StateID>.csv
  RdDensCat, RdDensWs – Mean of all rddens values within the local catchment (Cat) and upstream watershed (Ws). km/km2 Disturbance Infrastructure Watershed Falcone et al. 2010 Local catchment: Vc=∑xicAc, where xi is the presence of point i within the intersection of catchment c and a 100-m buffer of the stream line, πc is the proportion of this intersection of catchment c within USA borders, and Ac is the area of this intersection with catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within the intersection of catchment c and a 100-m buffer of the stream line, πc is the proportion of this intersection of catchment c within USA borders, and Ac is the area of this intersection with catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). RoadDensity_<RegionID>.csv, RoadDensity_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
rdstrcrs.tif – A binary raster of road and stream intersections, where 1 = intersection and 0 = no intersection. This raster was provided by James Falcone of the USGS - download date: 27 Jan 2014 30m X 30m Continuous raster NA NA - Made in house
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  RdCrsCat, RdCrsWs – Sum of all rdstrcrs values within the local catchment (Cat) and upstream watershed (Ws) divided by the area of each Cat and Ws. crossings/km2 Disturbance Infrastructure Watershed Carlisle et al. 2009 Local catchment: Rc=∑xi, where xi is the value of pixel i (1 or 0) of the landscape raster within the local catchment c. Full watershed: Rw=∑xc cϵw, where xc is the sum of raster pixel values within catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). RoadStreamCrossings_<RegionID>.csv, RoadStreamCrossings_<StateID>.csv
  RdCrsSlpWtdCat, RdCrsSlpWtdWs – Sum of all rdstrcrs values within the local catchment (Cat) and upstream watershed (Ws) multiplied by NHDPlusV21 slope and  divided by the area of each Cat and Ws. crossings * slope/km2 Disturbance Infrastructure Watershed Carlisle et al. 2009 Local catchment: Rc=∑xi, where xi is the value of pixel i (1 or 0) of the landscape raster within the local catchment c. Full watershed: Rw=∑xc cϵw, where xc is the sum of raster pixel values within catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). RoadStreamCrossings_<RegionID>.csv, RoadStreamCrossings_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
runoff.tif – Raster of estimated runoff between 1971-2000. This raster was provided by James Falcone of the USGS. For details on how the raster was developed see: McCabe GJ & Wolock DM (2011). Independent effects of temperature and precipitation on modeled runoff in the conterminous United States. Water Resources Research, W11522. Download date: 19 Sep 2013 1km X 1km, but summarized to 12-digit HUCs Continuous raster mm NA - Internal FTP from James Falcone of USGS
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  RunoffCat, RunoffWs – Mean of all runoff values within the local catchment (Cat) and upstream watershed (Ws). mm Natural Hydrology Watershed Carlisle et al. 2009 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). Runoff_<RegionID>.csv, Runoff_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
pestic.tif – Sum of 219 major pesticide compounds allocated to agricultural land within each USA county. Although this dataset is referenced to 1997, it generally represents
a composite of estimated pesticide use during the mid to late 1990s.Derived from USGS grids available from: http://water.usgs.gov/GIS/metadata/usgswrd/XML/agpest97grd.xml. Download date: 19 Sep 2013
1km X 1km Continuous raster kg/km2 http://water.usgs.gov/GIS/metadata/usgswrd/XML/agpest97grd.xml 
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Pestic97Cat, Pestic97Ws – Mean of all pestic.tif values within the local catchment (Cat) and upstream watershed (Ws). kg/km2 Disturbance Pollution Watershed Falcone et al. 2010 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). Pesticide_<RegionID>.csv, Pesticide_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
NH4.tif – National Atmospheric Deposition Program National Trends Network (NADP), Raster, Annual gradient map of preciptiation-weighted mean deposition for ammonium ion concentration for year, 2008 2000m X 2000m Continuous raster kg of NH4/ha/yr http://nadp.sws.uiuc.edu/ntn/annualmapsByYear.aspx
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  NH4_2008Cat, NH4_2008Ws – Annual average of preciptiation-weighted mean deposition for ammonium ion concentration for year, 2008, within the local catchment (Cat) and upstream watershed (Ws). kg/ha/yr Disturbance  Pollution Watershed National Atmospheric Deposition Program (NRSP-3). 2007. NADP Program Office, Illinois State Water Survey, 2204 Griffith Dr., Champaign, IL 61820. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). NADP_<RegionID>.csv, NADP_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
NO3.tif – National Atmospheric Deposition Program National Trends Network (NADP), Raster, Annual gradient map of preciptiation-weighted mean deposition for nitrate ion concentration for year, 2008 2000m X 2000m Continuous raster kg of NO3/ha/yr http://nadp.sws.uiuc.edu/ntn/annualmapsByYear.aspx
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  NO3_2008Cat, NO3_2008Ws – Annual average of preciptiation-weighted mean deposition for nitrate ion concentration for year, 2008, within the local catchment (Cat) and upstream watershed (Ws). kg/ha/yr Disturbance  Pollution Watershed National Atmospheric Deposition Program (NRSP-3). 2007. NADP Program Office, Illinois State Water Survey, 2204 Griffith Dr., Champaign, IL 61820. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). NADP_<RegionID>.csv, NADP_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
InorgNWetDep.tif – National Atmospheric Deposition Program National Trends Network (NADP), Raster, Annual gradient map of preciptiation-weighted mean wet deposition for inorganic nitrogen concentration from nitrate and ammonium for year, 2008 2000m X 2000m Continuous raster kg of N/ha/yr http://nadp.sws.uiuc.edu/ntn/annualmapsByYear.aspx
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  InorgNWetDep_2008Cat, InorgNWetDep_2008Ws – Annual average of preciptiation-weighted mean wet deposition for inorganic nitrogen concentration from nitrate and ammonium for year, 2008, within the local catchment (Cat) and upstream watershed (Ws). kg/ha/yr Disturbance  Pollution Watershed National Atmospheric Deposition Program (NRSP-3). 2007. NADP Program Office, Illinois State Water Survey, 2204 Griffith Dr., Champaign, IL 61820. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). NADP_<RegionID>.csv, NADP_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
SplusN.tif – National Atmospheric Deposition Program National Trends Network (NADP), Raster, Annual gradient map of preciptiation-weighted mean deposition for average sulfur & nitrogen concentration for year, 2008 2000m X 2000m Continuous raster kg of S & N/ha/yr http://nadp.sws.uiuc.edu/ntn/annualmapsByYear.aspx
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  SN_2008Cat, SN_2008Ws – Annual average of preciptiation-weighted mean deposition for average sulfur & nitrogen concentration for year, 2008, within the local catchment (Cat) and upstream watershed (Ws). kg/ha/yr Disturbance  Pollution Watershed National Atmospheric Deposition Program (NRSP-3). 2007. NADP Program Office, Illinois State Water Survey, 2204 Griffith Dr., Champaign, IL 61820. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). NADP_<RegionID>.csv, NADP_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
kfact.tif – Raster of mean surface soil erodibility factors (KFFACT)  1km X 1km Continuous raster mean surface soil erodibility factors (KFFACT)  http://www.soilinfo.psu.edu/index.cgi?soil_data&conus&data_cov&k&methods
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  KffactCat, KffactWs – Mean surface soil erodibility factors adjusted (KFFACT) , within the local catchment (Cat) and upstream watershed (Ws). unitless Natural Soil Watershed Penn State Soil Information for Environmental Modeling and Ecosystem Management Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). Kffact_<RegionID>.csv, Kffact_<StateID>.csv
  AgKffactCat, AgKffactWs – Mean surface soil erodibility factors adjusted (KFFACT)  on agricultural land (NLCD 2006), within the local catchment (Cat) and upstream watershed (Ws). unitless Natural Soil Watershed Penn State Soil Information for Environmental Modeling and Ecosystem Management Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of agricultural pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of agricultural pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). Kffact_<RegionID>.csv, Kffact_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
bfi.tif – Raster of base-flow index, The base-flow index (BFI) grid for the conterminous United States was developed to estimate (1) BFI values for ungaged streams, and (2) ground-water recharge throughout the conterminous United States. Estimates of BFI values at ungaged streams and BFI-based ground-water recharge estimates are useful for interpreting relations between land use and water quality in surface and ground water. 1km X 1km Continuous raster bfi is the ratio of base flow to total flow, expressed as a percentage.  % http://water.usgs.gov/GIS/metadata/usgswrd/XML/bfi48grd.xml
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  BFICat, BFIWs – Bfi is the ratio of base flow to total flow, expressed as a percentage.  %, within the local catchment (Cat) and upstream watershed (Ws). % Natural hydrology Watershed Wolock, D. M., 2003. Base-flow index grid for the conterminous United States. US Geological Survey Open-File Report 03-263. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). BFI_<RegionID>.csv, BFI_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
tmin.tif –  Raster of PRISM climate data - 30-year normal minimum air temperature (C°): Annual period: 1981-2010 800m X 800m Continuous raster http://www.prism.oregonstate.edu/normals/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Tmin8110Cat,Tmin8110Ws –  PRISM climate data - 30-year average annual normal minimum air temperature (C°):, within the local catchment (Cat) and upstream watershed (Ws)  Natural Climate Watershed PRISM Climate Group, Oregon State University, http://prism.oregonstate.edu, accessed 8 June 2015. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). PRISM_1981_2010_<RegionID>.csv, PRISM_1981_2010_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
tmean.tif –  Raster of PRISM climate data - 30-year normal mean air temperature (C°): Annual period: 1981-2010 800m X 800m Categorical raster http://www.prism.oregonstate.edu/normals/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Tmean8110Cat, Tmean8110Ws –  PRISM climate data - 30-year average annual normal mean air temperature (C°):, within the local catchment (Cat) and upstream watershed (Ws)  Natural Climate Watershed PRISM Climate Group, Oregon State University, http://prism.oregonstate.edu, accessed 8 June 2015. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). PRISM_1981_2010_<RegionID>.csv, PRISM_1981_2010_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
tmax.tif –  Raster of PRISM climate data - 30-year normal maximum air temperature (C°): Annual period: 1981-2010 800m X 800m Continuous raster http://www.prism.oregonstate.edu/normals/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Tmax8110Cat, Tmax8110Ws –  PRISM climate data - 30-year average annual normal maxmum air temperature (C°):, within the local catchment (Cat) and upstream watershed (Ws)  Natural Climate Watershed PRISM Climate Group, Oregon State University, http://prism.oregonstate.edu, accessed 8 June 2015. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). PRISM_1981_2010_<RegionID>.csv, PRISM_1981_2010_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
precip.tif –  Raster of PRISM climate data - 30-year normal mean precipitation (mm): Annual period: 1981-2010 800m X 800m Continuous raster http://www.prism.oregonstate.edu/normals/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Precip8110Cat, Precip8110Ws –  PRISM climate data - 30-year average annual normal precipitation (mm):, within the local catchment (Cat) and upstream watershed (Ws)  Ave rate (mm) Natural Climate Watershed PRISM Climate Group, Oregon State University, http://prism.oregonstate.edu, accessed 8 June 2015. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). PRISM_1981_2010_<RegionID>.csv, PRISM_1981_2010_<StateID>.csv
NABD.shp – Shapefile of the National Anthropogenic Barrier Dataset - Screened/cleaned version of the National Inventory of Dams (NID) that removed dams that have been decommissioned and duplicate records at state boundaries - The dataset contains two measures of reservoir volume: NID_stor and Norm_stor. The US Army Corps of Engineers defines these fields respectively as the maximum and typical volumes stored within reservoirs. The original volume units (acre-feet) were converted to cubic meters (acre-feet * 1233.48).  Download date: 03/03/2015 NA Point Vector Data Location (latitude/longitude), volume (m3)  https://www.sciencebase.gov/catalog/item/512cf142e4b0855fde669828 https://www.sciencebase.gov/catalog/file/get/512cf142e4b0855fde669828
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  NABD_DensCat, NABD_DensWs – Density of georeferenced dams within the local catchment (Cat) and upstream watershed (Ws). dams/km2 Disturbance Infrastructure Watershed Ostroff A., D. Wieferich, A. Cooper, D. Infante. (March 2013) 2012 National Anthropogenic Barrier Dataset (NABD). National Fish Habitat Partnership Data System.  http://dx.doi.org/doi:10.5066/F7VX0DFG Local catchment: Vc=∑xicAc, where xi is the presence of point i in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NABD_<RegionID>.csv, NABD_<StateID>.csv
  NABD_NrmStorCat, NABD_NrmStorWs – Volume of all reservoirs (Norm_stor in NABD) per unit area of the local catchment (Cat) and upstream watershed (Ws).  m3/km2 Disturbance Infrastructure Watershed Ostroff A., D. Wieferich, A. Cooper, D. Infante. (March 2013) 2012 National Anthropogenic Barrier Dataset (NABD). National Fish Habitat Partnership Data System. http://dx.doi.org/doi:10.5066/F7VX0DFG Local catchment: Vc=∑xicAc, where xi is the value of point i in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the sum of point values within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NABD_<RegionID>.csv, NABD_<StateID>.csv
  NABD_NIDStorCat, NABD_NIDStorWs – Volume of all reservoirs (NID_stor in NABD) per unit area of the local catchment (Cat) and upstream watershed (Ws).  m3/km2 Disturbance Infrastructure Watershed Ostroff A., D. Wieferich, A. Cooper, D. Infante. (March 2013) 2012 National Anthropogenic Barrier Dataset (NABD). National Fish Habitat Partnership Data System. http://dx.doi.org/doi:10.5066/F7VX0DFG Local catchment: Vc=∑xicAc, where xi is the value of point i in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the sum of point values within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NABD_<RegionID>.csv, NABD_<StateID>.csv
Landscape Layer Resolution Data Type Units Source  
nlcd2011.tif – The National Land Cover Database is a GIS raster of 14 natural land cover and 6 anthropogenic land use classes. Natural land cover classes: 11-water, 12-perrenial snow/ice, 13-barren land, 41-deciduous forest, 42-conifer forest, 43-mixed forest, 71-grassland/herbaceous, 90-woody wetlands, 91-ermergent herbaceous wetlands. Anthropogenic land use classes: 21-developed, open space, 22-developed, low intensity, 23-developed, medium intensity, 24-developed, high intensity, 81-pasture/hay, 82-cultivated crops. Download date: 30 March 2015 30m X 30m Categorical raster NA http://www.mrlc.gov/nlcd2011.php
  Landscape Metrics Units Class Metric Type Scale Reference Formulas StreamCat Table Name
  PctUrbHi2011Cat, PctUrbHi2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, high intensity land use. Derived from the nlcd2011.tif  (class 24) landscape raster. % Disturbance Urban Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctUrbHi2011CatRp100, PctUrbHi2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, high intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 24) landscape layers. % Disturbance Urban Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctUrbMd2011Cat, PctUrbMd2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, medium intensity land use. Derived from the nlcd2011.tif  (class 23) landscape raster. % Disturbance Urban Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctUrbMd2011CatRp100, PctUrbMd2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, medium intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 23) landscape layers. % Disturbance Urban Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctUrbLo2011Cat, PctUrbLo2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, low intensity land use. Derived from the nlcd2011.tif  (class 22) landscape raster. % Disturbance Urban Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctUrbLo2011CatRp100, PctUrbLo2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, low intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 22) landscape layers. % Disturbance Urban Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctUrbOp2011Cat, PctUrbOp2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, open space land use. Derived from the nlcd2011.tif  (class 21) landscape raster. % Disturbance Urban Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctUrbOp2011CatRp100, PctUrbOp2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, open space land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 21) landscape layers. % Disturbance Urban Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctCrop2011Cat, PctCrop2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as row crop land use. Derived from the nlcd2011.tif  (class 82) landscape raster. % Disturbance Agriculture Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctCrop2011CatRp100, PctCrop2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as crop land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 82) landscape layers. % Disturbance Urban Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctHay2011Cat, PctHay2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as pasture/hay land use. Derived from the nlcd2011.tif  (class 81) landscape raster. % Disturbance Agriculture Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctHay2011CatRp100, PctHay2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as pasture/hay land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 81) landscape layers. % Disturbance Agriculture Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctDecid2011Cat, PctDecid2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as deciduous forest land cover. Derived from the nlcd2011.tif  (class 41) landscape raster. % Natural Land Cover Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctDecid2011CatRp100, PctDecid2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as deciduous forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 41) landscape layers. % Natural Land Cover Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctConif2011Cat, PctConif2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as evergreen forest land cover. Derived from the nlcd2011.tif  (class 42) landscape raster. % Natural Land Cover Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctConif2011CatRp100, PctConif2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as evergreen forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 42) landscape layers. % Natural Land Cover Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctMxFst2011Cat, PctMxFst2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as mixed deciduous/evergreen forest land cover. Derived from the nlcd2011.tif  (class 43) landscape raster. % Natural Land Cover Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctMxFst2011CatRp100, PctMxFst2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as mixed deciduous/evergreen forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 43) landscape layers. % Natural Land Cover Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctBl2011Cat, PctBl2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as areas of bedrock, desert pavement, scarps, talus, slides, volcanic materical, glacial debris, sand dunes, strip mines, gravel pits, and other accumulations of earthen material. Derived from the nlcd2011.tif  (class 31) landscape raster. % Natural Land Cover Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctBl2011CatRp100, PctBl2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as areas of bedrock, desert pavement, scarps, talus, slides, volcanic materical, glacial debris, sand dunes, strip mines, gravel pits, and other accumulations of earthen material within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 31) landscape layers. % Natural Land Cover Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctOw2011Cat, PctOw2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as open water land cover. Derived from the nlcd2011.tif  (class 11) landscape raster. % Natural Land Cover Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctOw2011CatRp100, PctOw2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as open water land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 11) landscape layers. % Natural Land Cover Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctIce2011Cat, PctIce2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as ice/snow land cover. Derived from the nlcd2011.tif  (class 12) landscape raster. % Natural Land Cover Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctIce2011CatRp100, PctIce2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as ice/snow land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 12) landscape layers. % Natural Land Cover Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctHbWet2011Cat, PctHbWet2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as herbaceous wetland land cover. Derived from the nlcd2011.tif  (class 95) landscape raster. % Natural Land Cover Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctHbWet2011CatRp100, PctHbWet2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as emergent herbaceous wetland land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 95) landscape layers. % Natural Land Cover Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctWdWet2011Cat, PctWdWet2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as woody wetland land cover. Derived from the nlcd2011.tif  (class 90) landscape raster. % Natural Land Cover Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctWdWet2011CatRp100, PctWdWet2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as woody wetland land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 90) landscape layers. % Natural Land Cover Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctShrb2011Cat, PctShrb2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as shrub/scrub land cover. Derived from the nlcd2011.tif  (class 52) landscape raster. % Natural Land Cover Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctShrb2011CatRp100, PctShrb2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as shrub/scrub land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 52) landscape layers. % Natural Land Cover Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
  PctGrs2011Cat, PctGrs2011Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as grassland/herbaceous land cover. Derived from the nlcd2011.tif  (class 71) landscape raster. % Natural Land Cover Watershed Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2011_<RegionID>.csv, NLCD2011_<StateID>.csv
  PctGrs2011CatRp100, PctGrs2011WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as grassland/herbaceous land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2011.tif (class 71) landscape layers. % Natural Land Cover Riparian Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2011_RipBuf100_<RegionID>.csv, NLCD2011_RipBuf100_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
al20mar14.tif – Raster of percentage of lithological aluminum oxide content in surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/53481333e4b06f6ce034aae7
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Al2O3Cat, Al2O3Ws – Mean of all Al2O3 values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys1_<RegionID>.csv, GeoChemPhys1_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
cao20mar14.tif – Raster of percentage of lithological calcium oxide (CaO) content in surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/53543d10e4b0bab7f98ce7e0
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  CaOCat, CaOWs – Mean of all CaO values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys1_<RegionID>.csv, GeoChemPhys1_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
fe20mar14.tif – Raster of percentage of lithological ferric oxide content in surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/53543d10e4b0bab7f98ce7e0
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Fe2O3Cat, Fe2O3Ws – Mean of all Fe2O3 values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys1_<RegionID>.csv, GeoChemPhys1_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
k20mar14.tif – Raster of percentage of lithological potassium oxide (K2O) content in surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/552eec97e4b0b22a1580310e
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  K2OCat, K2OWs – Mean of all K2O values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys1_<RegionID>.csv, GeoChemPhys1_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
k20mar14.tif – Raster of percentage of lithological magnesium oxide (MgO) content in surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/552b001ae4b026915857df09
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  MgOCat, MgOWs – Mean of all MgO values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys1_<RegionID>.csv, GeoChemPhys1_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
na20mar14.tif – Raster of percentage of lithological sodium oxide (Na2O) content in surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/552ee7a6e4b0b22a15803101
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Na2OCat, Na2OWs – Mean of all Na2O values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys1_<RegionID>.csv, GeoChemPhys1_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
p20mar14.tif – Raster of percentage of lithological phosphorus pentoxide (P2O5) content in surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/552b1890e4b026915857df12
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  P2O5Cat, P2O5Ws – Mean of all P2O5 values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys1_<RegionID>.csv, GeoChemPhys1_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
s20mar14.tif – Raster of percentage of lithological sulfur (S) content in surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/552c4ecbe4b0b22a157f5065
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  SCat,SWs – Mean of all S values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys1_<RegionID>.csv, GeoChemPhys1_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
si20mar14.tif – Raster of percentage of lithological silicon dioxide (SiO2) content in surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/552d9ea4e4b0b22a157f65c2
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  SiO2Cat,SiO2Ws – Mean of all SiO2 values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys1_<RegionID>.csv, GeoChemPhys1_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
n20mar14.tif – Raster of percentage of lithological nitrogen (N) content in surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/5530415ee4b0b22a15806005
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  NCat,NWs – Mean of all N values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys2_<RegionID>.csv, GeoChemPhys2_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
perm20mar14.tif – Raster of percentage of lithological the hydraulic conductivity (in micrometers per second) of surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/552c4877e4b0b22a157f5061
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  HydrlCondCat,HydrlCondWs – Mean of all HydrlCond values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys3_<RegionID>.csv, GeoChemPhys3_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
ucs20mar14.tif – Raster of percentage of lithological the compressive strength, measured as uniaxial compressive strength (in megaPascals, MPa) of surface or near surface geology. Download date: 03 Oct 2016. 90m X 90m Continuous raster % https://www.sciencebase.gov/catalog/item/552c3b20e4b0b22a157f502d
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  CompStrgthCat,CompStrgthWs – Mean of all CompStrgth values within the local catchment (Cat) and upstream watershed (Ws). % Natural Lithology Watershed Olson, J.R. and Hawkins, C.P., 2014, Geochemical Characteristics of the Conterminous United States: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7X0653P Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). GeoChemPhys4_<RegionID>.csv, GeoChemPhys4_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
cbnf.tif – Raster of cultivated biological nitrogen fixation from the cultivation of crops in kg N/ha/yr 30m X 30m Continuous raster mean rate kg N/ha/yr http://enviroatlas.epa.gov/enviroatlas/Datafactsheets/pdf/ESN/CultivatedBiologicalNitrogenFixation.pdf
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  CBNFCat, CBNFWs – Mean rate of biological nitrogen fixation from the cultivation of crops in kg N/ha/yr, within the local catchment (Cat) and upstream watershed (Ws). mean rate kg N/ha/yr Disturbance  Pollution Watershed Daniel Sobota Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). AgriculturalNitrogen_<RegionID>.csv, AgriculturalNitrogen_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
manure.tif – Raster of manure application to agricultural land from confined animal feeding operations in kg N/ha/yr 30m X 30m Continuous raster mean rate kg N/ha/yr http://enviroatlas.epa.gov/EnviroAtlas/DataFactSheets/pdf/ESN/ManureApplication.pdf
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  ManureCat, ManureWs – Mean rate of manure application to agricultural land from confined animal feeding operations in kg N/ha/yr, within the local catchment (Cat) and upstream watershed (Ws). mean rate kg N/ha/yr Disturbance  Pollution Watershed Daniel Sobota Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). AgriculturalNitrogen_<RegionID>.csv, AgriculturalNitrogen_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
fert.tif – Raster of synthetic nitrogen fertilizer application to agricultural land in kg N/ha/yr 30m X 30m Continuous raster mean rate kg N/ha/yr Source
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  FertCat, FertWs – Mean rate of synthetic nitrogen fertilizer application to agricultural land in kg N/ha/yr, within the local catchment (Cat) and upstream watershed (Ws). mean rate kg N/ha/yr Disturbance  Pollution Watershed Daniel Sobota Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). AgriculturalNitrogen_<RegionID>.csv, AgriculturalNitrogen_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
huden.tif – Raster of housing unit density derived from  an ESRI shapefile of block group-level 2010 US Census data. Density was calculated as block-group total housing units / block group area. This shapefile was then converted to a 90m x 90m resolution raster. Download date: 14 Feb 2014 90m x 90m Continuous raster housing units/km2 http://www.gisnuts.com/terra/BGSF1v10/SF1_F GDB_US_BLOCKGROUP.zip

  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  HUDen2010CatRp100, HUDen2010WsRp100 – Mean of all huden values within the local catchment (Cat) or upstream watershed (Ws) and within 100-m buffer of NHD stream lines (Rp100). housing units/km2 Disturbance Urban Watershed Falcone et al. 2010 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). USCensus2010RipBuf_<RegionID>.csv, USCensus2010RipBuf_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
fire<year>.tif –  Forest loss to fire (fire perimeter) for each year (2000 to 2010) 30m X 30m Categorical raster land cover class https://www.sciencebase.gov/catalog/folder/4f4e4767e4b07f02db47e0af
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  PctFire<year>Cat, PctFire<year>Ws –   % Forest loss to fire (fire perimeter) for each year (2000 to 2010) within catchment (Cat) or upstream watershed (Ws). % Disturbance  Fire Watershed   Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). FirePerimeters_<RegionID>.csv, FirePerimeters_<StateID>.csv
  PctFire<year>Rp100Cat, PctFire<year>Rp100Ws –   % Forest loss to fire (fire perimeter) for each year (2000 to 2010) within catchment (Cat) or upstream watershed (Ws) and within 100-m buffer of NHD stream lines (Rp100). % Disturbance  Fire Watershed   Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). FirePerimetersRipBuf100_<RegionID>.csv, FirePerimetersRipBuf100_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
loss.tif –  Forest cover change 2000-2013, Tree canopy cover yrs 2000 - 2013; change (loss) in canopy cover 2000-2013 30m X 30m Categorical raster land cover class http://earthenginepartners.appspot.com/science-2013-global-forest/download_v1.1.html
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  PctFrstLoss<year>Cat, PctFrstLoss<year>Ws –  % tree canopy cover loss between years 2000-2013, within the local catchment (Cat) and upstream watershed (Ws). % Disturbance  Disturbance Watershed Hansen, M. C., P. V. Potapov, R. Moore, M. Hancher, S. A. Turubanova, A. Tyukavina, D. Thau, S. V. Stehman, S. J. Goetz, T. R. Loveland, A. Kommareddy, A. Egorov, L. Chini, C. O. Justice, and J. R. G. Townshend. 2013. “High-Resolution Global Maps of 21st-Century Forest Cover Change.” Science 342 (15 November): 850–53. Data available on-line from: http://earthenginepartners.appspot.com/science-2013-global-forest. Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). ForestLoss0013_<RegionID>.csv, ForestLoss0013_<StateID>.csv
  PctFrstLoss<year>CatRp100, PctFrstLoss<year>WsRp100 –  % tree canopy cover loss between years 2000-2013, within the local catchment (Cat) and upstream watershed (Ws) and within 100-m buffer of NHD stream lines (Rp100). % Disturbance  Riparian Watershed Hansen, M. C., P. V. Potapov, R. Moore, M. Hancher, S. A. Turubanova, A. Tyukavina, D. Thau, S. V. Stehman, S. J. Goetz, T. R. Loveland, A. Kommareddy, A. Egorov, L. Chini, C. O. Justice, and J. R. G. Townshend. 2013. “High-Resolution Global Maps of 21st-Century Forest Cover Change.” Science 342 (15 November): 850–53. Data available on-line from: http://earthenginepartners.appspot.com/science-2013-global-forest. Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). ForestLoss0013RipBuf100_<RegionID>.csv, ForestLoss0013RipBuf100_<StateID>.csv  
Landscape Layer Resolution Data Type Units Source
IntrodManagVeg.tif – LANDFIRE The Existing Vegetation Type (EVT) layer represents the species composition currently present at a given site. Vegetation map units are primarily derived from NatureServe's Ecological Systems classification, which is a nationally consistent set of mid-scale ecological units. Additional units are derived from NLCD, National Vegetation Classification Standard (NVCS) Alliances, and LANDFIRE specific types. - Reclassified into introduced managed vegetation cover - IntrodManagVeg class - reclass from EVT - groups (EVT_GP) = (701,702,703,704,705,706,707,708,709,711,731) 30m X 30m Categorical raster land cover class http://www.landfire.gov/NationalProductDescriptions22.php
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  PctNonAgIntrodManagVegCat, PctNonAgIntrodManagVegWs – % Nonnative vegetation landcover type reclassed from LANDFIRE Existing Vegetation Type (EVT), within catchment (Cat) and upstream watershed (Ws).  % Disturbance  Disturbance Watershed LANDFIRE. [Homepage of the LANDFIRE Program, U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior], [Online]. Available: http://www.landfire.gov/vegetation.php [2015, January 01] Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NonAgIntrodManagVeg_<RegionID>.csv, NonAgIntrodManagVeg_<StateID>.csv
  PctNonAgIntrodManagVegCatRp100, PctNonAgIntrodManagVegWsRp100 – % Nonnative vegetation landcover type reclassed from LANDFIRE Existing Vegetation Type (EVT), within catchment (Cat) or upstream watershed (Ws) and within 100-m buffer of NHD stream lines (Rp100).  % Disturbance  Riparian Watershed LANDFIRE. [Homepage of the LANDFIRE Program, U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior], [Online]. Available: http://www.landfire.gov/lf_mosaics.php [2015, January 01] Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NonAgIntrodManagVegRipBuf100_<RegionID>.csv, NonAgIntrodManagVegRipBuf100_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
cti.tif – Composite Topographic Index (CTI)[Wetness Index] 30m X 30m Continuous raster cti  
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  WetIndexCat, WetIndexWs –  Mean Composite Topographic Index (CTI)[Wetness Index]:, within the local catchment (Cat) and upstream watershed (Ws)  Ave rate Natural wetness Watershed http://enviroatlas.epa.gov/enviroatlas/datafactsheets/pdf/ESN/PercentForestonWetAreas.pdf , obtained from EnviroAtlas 11 July 2015 Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). WetIndx_<RegionID>.csv, WetIndx_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
USTRAT.shp – Shapefile of The National Coal Resources Data System (NCRDS) US Stratigraphy (USTRAT) data of coal mine sites. Download date: 03/03/2015 NA points Location (latitiude/longitude) http://ncrdspublic.er.usgs.gov/ncrds_data/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  CoalMineDensCat, CoalMineDensWs – Density of georeferenced coal mine sites (USTRAT.shp) within the local catchment (Cat) and upstream watershed (Ws). sites/km2 Disturbance mines Watershed U.S. Geological Survey National Coal Resources Data System UStratigraphic (USTRAT) database, http://energy.usgs.gov/Tools/NationalCoalResourcesDataSystem.aspx. Accessed 03/03/2015. Local catchment: Vc=∑xicAc, where xi is the presence of point i in catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c.  Full watershed: Vw=∑xc/∑πcAc cϵw, where xc is the total number of points within catchment c, πc is the proportion of catchment c within USA borders, and Ac is the area of catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). CoalMines_<RegionID>.csv, CoalMines_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
PRISMtmean_2008.tif –  Rasters of PRISM mean air temperature (C°): Year 2008 4km X 4km Continuous raster http://www.prism.oregonstate.edu/recent/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Tmean08Cat,Tmean08Ws –  PRISM climate data - mean air temperature (C°):, within the local catchment (Cat) and upstream watershed (Ws). This metric was derived to support modeling of stream biological condition based on the 2008-2009 NRSA.   Natural Climate Watershed PRISM Climate Group, Oregon State University, http://prism.oregonstate.edu, accessed 8 June 2015. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). PRISM_2008_2009_<RegionID>.csv, PRISM_2008_2009_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
PRISMtmean_2009.tif –  Rasters of PRISM mean air temperature (C°): Year 2009 4km X 4km Continuous raster http://www.prism.oregonstate.edu/recent/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Tmean09Cat,Tmean09Ws –  PRISM climate data - mean air temperature (C°):, within the local catchment (Cat) and upstream watershed (Ws). This metric was derived to support modeling of stream biological condition based on the 2008-2009 NRSA.   Natural Climate Watershed PRISM Climate Group, Oregon State University, http://prism.oregonstate.edu, accessed 8 June 2015. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). PRISM_2008_2009_<RegionID>.csv, PRISM_2008_2009_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
PRISMppt_2008.tif –  Rasters of PRISM precipitation (mm): Year 2008 4km X 4km Continuous raster mm http://www.prism.oregonstate.edu/recent/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Precip08Cat, Precip08Ws –  PRISM climate data - mean precipitation (mm):, within the local catchment (Cat) and upstream watershed (Ws). This metric was derived to support modeling of stream biological condition based on the 2008-2009 NRSA.   mm Natural Climate Watershed PRISM Climate Group, Oregon State University, http://prism.oregonstate.edu, accessed 8 June 2015. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). PRISM_2008_2009_<RegionID>.csv, PRISM_2008_2009_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
PRISMppt_2009.tif –  Rasters of PRISM precipitation (mm): Year 2009 4km X 4km Continuous raster mm http://www.prism.oregonstate.edu/recent/
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  Precip09Cat, Precip09Ws –  PRISM climate data - mean precipitation (mm):, within the local catchment (Cat) and upstream watershed (Ws). This metric was derived to support modeling of stream biological condition based on the 2008-2009 NRSA.   mm Natural Climate Watershed PRISM Climate Group, Oregon State University, http://prism.oregonstate.edu, accessed 8 June 2015. Local catchment: Rc=∑xi/nc, where xi is the value of pixel i of the landscape raster and nc is the number of pixels within the local catchment c. Full watershed: Rw=∑xc/∑nc cϵw, where xc is the sum of  raster pixel values within catchment c  and nc is the number of pixels in catchment c for all contributing catchments, including the focal catchment of watershed w (cϵw). PRISM_2008_2009_<RegionID>.csv, PRISM_2008_2009_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
PRISM_tmean_stable_4kmM2_200807_bil; PRISM_tmean_stable_4kmM2_200808_bil; PRISM_tmean_stable_4kmM2_200907_bil; PRISM_tmean_stable_4kmM2_200908_bil; PRISM_tmean_stable_4kmM2_201307_bil; PRISM_tmean_stable_4kmM2_201308_bil; PRISM_tmean_stable_4kmM2_201407_bil; PRISM_tmean_stable_4kmM2_201408_bil - Rasters of PRISM air temperature (C°) for July and August and for years 2008, 2009, 2013, and 2014. Months within each year were averaged to derive "summer" air temperatures used in model application. 4km X 4km Continuous raster http://www.prism.oregonstate.edu/recent/; Additional StreamCat metrics were used to predict stream temperature, including elevation range (from NHDPlusV21), watershed area, base-flow index, and soil bulk density
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  MSST_2008, MSST_2009, MSST_2013, MSST_2014 - Predicted reference-condition mean summer stream temperatures. These temperatures are predictions of what stream temperatures could be under minimal human-related alterations to watersheds - not current conditions Natural Climate Watershed PRISM Climate Group, Oregon State University, http://prism.oregonstate.edu, accessed June - November 2016; Predictions made by applying a random forest model developed by Hill et al. (2013) NA - Random forest model applied to make predictions at NHDPlusV21 stream segment scale RefStreamTempPred_<RegionID>.csv, RefStreamTempPred_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
PRISM_tmean_stable_4kmM2_200801_bil; PRISM_tmean_stable_4kmM2_200802_bil; PRISM_tmean_stable_4kmM2_200901_bil; PRISM_tmean_stable_4kmM2_200902_bil; PRISM_tmean_stable_4kmM2_201301_bil; PRISM_tmean_stable_4kmM2_201302_bil; PRISM_tmean_stable_4kmM2_201401_bil; PRISM_tmean_stable_4kmM2_201402_bil - Rasters of PRISM air temperature (C°) for January and Febrary and for years 2008, 2009, 2013, and 2014.  Months within each year were averaged to derive "winter" air temperatures used in model application. 4km X 4km Continuous raster http://www.prism.oregonstate.edu/recent/; Additional StreamCat metrics were used to predict stream temperature, including elevation range (from NHDPlusV21), watershed area, geology, and soil permeability 
  Instream estimate Units Class Metric Type Scale Reference Formula StreamCat Table Name
  MWST_2008, MWST_2009, MWST_2013, MWST_2014 - Predicted reference-condition mean winter stream temperatures. These temperatures are predictions of what stream temperatures could be under minimal human-related alterations to watersheds - not current conditions Natural Climate Watershed PRISM Climate Group, Oregon State University, http://prism.oregonstate.edu, accessed June - November 2016; Predictions made by applying a random forest model developed by Hill et al. (2013) NA - Random forest model applied to make predictions at NHDPlusV21 stream segment scale RefStreamTempPred_<RegionID>.csv, RefStreamTempPred_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
NA NA NA NA NA
  Instream estimate Units Class Metric Type Scale Reference Formula StreamCat Table Name
  MAST_2008, MAST_2009, MAST_2013, MAST_2014 - Predicted reference-condition mean annual stream temperatures. These temperatures are predictions of what stream temperatures could be under minimal human-related alterations to watersheds - not current conditions Natural Water quality Stream segment Predictions made by applying a random forest model developed in: Predicting thermal reference conditions for USA streams and rivers. Ryan A. Hill, Charles P. Hawkins, and Daren M. Carlisle
Freshwater Science 2013 32:1, 39-55 
NA - Random forest model applied to make predictions at NHDPlusV21 stream segment scale RefStreamTempPred_<RegionID>.csv, RefStreamTempPred_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
NA NA NA NA NA
  Instream estimate Units Class Metric Type Scale Reference Formula StreamCat Table Name
  prG_BMMI - Predicted biological condition based on 2008/2009 National Rivers and Streams Assessment (NRSA) benthic invertebrate multimetric index (BMMI).  Probability Natural Bio Stream segment Hill, R. A., Fox, E. W., Leibowitz, S. G., Olsen, A. R., Thornbrugh, D. J. and Weber, M. H. (2017), Predictive mapping of the biotic condition of conterminous U.S. rivers and streams. Ecol Appl, 27: 2397–2415. doi:10.1002/eap.1617 NA - Random forest model applied to make predictions at NHDPlusV21 stream segment scale NRSA_PredictedBioCondition_<RegionID>.csv, NRSA_PredictedBioCondition_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
nlcd2001.tif – The National Land Cover Database is a GIS raster of 14 natural land cover and 6 anthropogenic land use classes. Natural land cover classes: 11-water, 12-perrenial snow/ice, 13-barren land, 41-deciduous forest, 42-conifer forest, 43-mixed forest, 71-grassland/herbaceous, 90-woody wetlands, 91-ermergent herbaceous wetlands. Anthropogenic land use classes: 21-developed, open space, 22-developed, low intensity, 23-developed, medium intensity, 24-developed, high intensity, 81-pasture/hay, 82-cultivated crops. Download date: 30 March 2015 30m X 30m Categorical raster NA http://www.mrlc.gov/nlcd2001.php
  Landscape Metrics Units Class Metric Type Scale Reference Formulas StreamCat Table Name
  PctUrbHi2001Cat, PctUrbHi2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, high intensity land use. Derived from the nlcd2001.tif  (class 24) landscape raster. % Disturbance Urban Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctUrbHi2001CatRp100, PctUrbHi2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, high intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 24) landscape layers. % Disturbance Urban Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctUrbMd2001Cat, PctUrbMd2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, medium intensity land use. Derived from the nlcd2001.tif  (class 23) landscape raster. % Disturbance Urban Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctUrbMd2001CatRp100, PctUrbMd2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, medium intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 23) landscape layers. % Disturbance Urban Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctUrbLo2001Cat, PctUrbLo2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, low intensity land use. Derived from the nlcd2001.tif  (class 22) landscape raster. % Disturbance Urban Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctUrbLo2001CatRp100, PctUrbLo2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, low intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 22) landscape layers. % Disturbance Urban Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctUrbOp2001Cat, PctUrbOp2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, open space land use. Derived from the nlcd2001.tif  (class 21) landscape raster. % Disturbance Urban Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctUrbOp2001CatRp100, PctUrbOp2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, open space land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 21) landscape layers. % Disturbance Urban Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctCrop2001Cat, PctCrop2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as row crop land use. Derived from the nlcd2001.tif  (class 82) landscape raster. % Disturbance Agriculture Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctCrop2001CatRp100, PctCrop2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as crop land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 82) landscape layers. % Disturbance Urban Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctHay2001Cat, PctHay2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as pasture/hay land use. Derived from the nlcd2001.tif  (class 81) landscape raster. % Disturbance Agriculture Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctHay2001CatRp100, PctHay2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as pasture/hay land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 81) landscape layers. % Disturbance Agriculture Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctDecid2001Cat, PctDecid2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as deciduous forest land cover. Derived from the nlcd2001.tif  (class 41) landscape raster. % Natural Land Cover Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctDecid2001CatRp100, PctDecid2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as deciduous forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 41) landscape layers. % Natural Land Cover Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctConif2001Cat, PctConif2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as evergreen forest land cover. Derived from the nlcd2001.tif  (class 42) landscape raster. % Natural Land Cover Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctConif2001CatRp100, PctConif2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as evergreen forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 42) landscape layers. % Natural Land Cover Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctMxFst2001Cat, PctMxFst2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as mixed deciduous/evergreen forest land cover. Derived from the nlcd2001.tif  (class 43) landscape raster. % Natural Land Cover Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctMxFst2001CatRp100, PctMxFst2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as mixed deciduous/evergreen forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 43) landscape layers. % Natural Land Cover Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctBl2001Cat, PctBl2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as areas of bedrock, desert pavement, scarps, talus, slides, volcanic materical, glacial debris, sand dunes, strip mines, gravel pits, and other accumulations of earthen material. Derived from the nlcd2001.tif  (class 31) landscape raster. % Natural Land Cover Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctBl2001CatRp100, PctBl2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as areas of bedrock, desert pavement, scarps, talus, slides, volcanic materical, glacial debris, sand dunes, strip mines, gravel pits, and other accumulations of earthen material within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 31) landscape layers. % Natural Land Cover Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctOw2001Cat, PctOw2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as open water land cover. Derived from the nlcd2001.tif  (class 11) landscape raster. % Natural Land Cover Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctOw2001CatRp100, PctOw2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as open water land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 11) landscape layers. % Natural Land Cover Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctIce2001Cat, PctIce2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as ice/snow land cover. Derived from the nlcd2001.tif  (class 12) landscape raster. % Natural Land Cover Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctIce2001CatRp100, PctIce2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as ice/snow land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 12) landscape layers. % Natural Land Cover Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctHbWet2001Cat, PctHbWet2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as herbaceous wetland land cover. Derived from the nlcd2001.tif  (class 95) landscape raster. % Natural Land Cover Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctHbWet2001CatRp100, PctHbWet2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as emergent herbaceous wetland land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 95) landscape layers. % Natural Land Cover Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctWdWet2001Cat, PctWdWet2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as woody wetland land cover. Derived from the nlcd2001.tif  (class 90) landscape raster. % Natural Land Cover Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctWdWet2001CatRp100, PctWdWet2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as woody wetland land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 90) landscape layers. % Natural Land Cover Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctShrb2001Cat, PctShrb2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as shrub/scrub land cover. Derived from the nlcd2001.tif  (class 52) landscape raster. % Natural Land Cover Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctShrb2001CatRp100, PctShrb2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as shrub/scrub land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 52) landscape layers. % Natural Land Cover Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
  PctGrs2001Cat, PctGrs2001Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as grassland/herbaceous land cover. Derived from the nlcd2001.tif  (class 71) landscape raster. % Natural Land Cover Watershed Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2001_<RegionID>.csv, NLCD2001_<StateID>.csv
  PctGrs2001CatRp100, PctGrs2001WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as grassland/herbaceous land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2001.tif (class 71) landscape layers. % Natural Land Cover Riparian Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., Herold, N., McKerrow, A., VanDriel, J.N., and Wickham, J. 2007. Completion of the 2001 National Land Cover Database for the Conterminous United States. Photogrammetric Engineering and Remote Sensing, Vol. 73, No. 4, pp 337-341.  Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2001_RipBuf100_<RegionID>.csv, NLCD2001_RipBuf100_<StateID>.csv
Landscape Layer Resolution Data Type Units Source
NA NA NA NA NA
  Landscape Metrics Units Class Metric Type Scale Reference Formula StreamCat Table Name
  CHYD, WHYD - Hydrologic regulation component score using catchment or watershed StreamCat metrics, respectively (see Reference for full list of metrics).  NA Disturbance Land Use Index NHD catchment and full-upstream watershed ICI/IWI applied to StreamCat data with methods described in: Thornbrugh, D.J., Leibowitz, S.G., Hill, R.A., Weber, M.H., Johnson, S.C., Olsen, A.R., Flotemersch, J.E., Stoddard, J.L., and Peck, D.V. (accepted), Mapping watershed integrity for the conterminous United State. Ecological Indicators. CHYDc=∑[gCHYD,j(sj,c/sj,cmax)]/nCHYD,c WHYDw=∑[gWHYD,j(sj,w/sj,cmax)]/nWHYD,w ICI_IWI_v1<RegionID>.csv, ICI_IWI_<StateID>.csv
  CCHEM, WCHEM - Regulation of water chemistry component score calculated using catchment or watershed StreamCat metrics, respectively (see Reference for full list of metrics).  NA Disturbance Land Use Index NHD catchment and full-upstream watershed ICI/IWI applied to StreamCat data with methods described in: Thornbrugh, D.J., Leibowitz, S.G., Hill, R.A., Weber, M.H., Johnson, S.C., Olsen, A.R., Flotemersch, J.E., Stoddard, J.L., and Peck, D.V. (accepted), Mapping watershed integrity for the conterminous United State. Ecological Indicators. CCHEMc=∑[gCCHEM,j(sj,c/sj,cmax)]/nCCHEM,w WCHEMw=∑[gWCHEM,j(sj,w/sj,cmax)]/nWCHEM,w ICI_IWI_v1<RegionID>.csv, ICI_IWI_<StateID>.csv
  CSED, WSED - Sediment regulation component score calculated using catchment metrics catchment or watershed StreamCat metrics, respectively (see Reference for full list of metrics).  NA Disturbance Land Use Index NHD catchment and full-upstream watershed ICI/IWI applied to StreamCat data with methods described in: Thornbrugh, D.J., Leibowitz, S.G., Hill, R.A., Weber, M.H., Johnson, S.C., Olsen, A.R., Flotemersch, J.E., Stoddard, J.L., and Peck, D.V. (accepted), Mapping watershed integrity for the conterminous United State. Ecological Indicators. CSEDc=∑[gCSED,j(sj,c/sj,cmax)]/nCSED,c WSEDw=∑[gWSED,j(sj,w/sj,cmax)]/nWSED,w ICI_IWI_v1<RegionID>.csv, ICI_IWI_<StateID>.csv
  CCONN, WCONN - Hydrologic connectivity component score calculated using catchment metrics catchment or watershed StreamCat metrics, respectively (see Reference for full list of metrics).  NA Disturbance Land Use Index NHD catchment and full-upstream watershed ICI/IWI applied to StreamCat data with methods described in: Thornbrugh, D.J., Leibowitz, S.G., Hill, R.A., Weber, M.H., Johnson, S.C., Olsen, A.R., Flotemersch, J.E., Stoddard, J.L., and Peck, D.V. (accepted), Mapping watershed integrity for the conterminous United State. Ecological Indicators. CCONNc=∑[gCCONN,j(sj,c/sj,cmax)]/nCCONN,c WCONNw=∑[gWCONN,j(sj,w/sj,cmax)]/nWCONN,w ICI_IWI_v1<RegionID>.csv, ICI_IWI_<StateID>.csv
  CTEMP, WTEMP - Temperature regulation component score calculated using catchment metrics catchment or watershed StreamCat metrics, respectively (see Reference for full list of metrics).  NA Disturbance Land Use Index NHD catchment and full-upstream watershed ICI/IWI applied to StreamCat data with methods described in: Thornbrugh, D.J., Leibowitz, S.G., Hill, R.A., Weber, M.H., Johnson, S.C., Olsen, A.R., Flotemersch, J.E., Stoddard, J.L., and Peck, D.V. (accepted), Mapping watershed integrity for the conterminous United State. Ecological Indicators. CTEMPc=∑[gCTEMP,j(sj,c/sj,cmax)]/nCTEMP,c WTEMPw=∑[gWTEMP,j(sj,w/sj,cmax)]/nWTEMP,w ICI_IWI_v1<RegionID>.csv, ICI_IWI_<StateID>.csv
  CHABT, WHABT - Habitat provision component score calculated using catchment metrics catchment or watershed StreamCat metrics, respectively(see Reference for full list of metrics).  NA Disturbance Land Use Index NHD catchment and full-upstream watershed ICI/IWI applied to StreamCat data with methods described in: Thornbrugh, D.J., Leibowitz, S.G., Hill, R.A., Weber, M.H., Johnson, S.C., Olsen, A.R., Flotemersch, J.E., Stoddard, J.L., and Peck, D.V. (accepted), Mapping watershed integrity for the conterminous United State. Ecological Indicators. CHABTc=∑[gCHABT,j(sj,c/sj,cmax)]/nCHABT,c WHABTw=∑[gWHABT,j(sj,w/sj,cmax)]/nWHABT,w ICI_IWI_v1<RegionID>.csv, ICI_IWI_<StateID>.csv
  ICI, IWI - Indices of catchment and watershed integrity. Respectively calculated from CHYD, CCHEM, CSED, CCONN, CTEMP, CHABT,WHYD, WCHEM, WSED, WCONN, WTEMP, and WHABT. NA Disturbance Land Use Index NHD catchment and full-upstream watershed ICI/IWI applied to StreamCat data with methods described in: Thornbrugh, D.J., Leibowitz, S.G., Hill, R.A., Weber, M.H., Johnson, S.C., Olsen, A.R., Flotemersch, J.E., Stoddard, J.L., and Peck, D.V. (accepted), Mapping watershed integrity for the conterminous United State. Ecological Indicators. ICIc=CHYDc*CCHEMc*CSEDc*CCONNc*CTEMPc*CHABTc IWIw=WHYDw*WCHEMw*WSEDw*WCONNw*WTEMPw*WHABTw ICI_IWI_v1<RegionID>.csv, ICI_IWI_<StateID>.csv
Landscape Layer Resolution Data Type Units Source  
nlcd2016.tif – The National Land Cover Database is a GIS raster of 14 natural land cover and 6 anthropogenic land use classes. Natural land cover classes: 11-water, 12-perrenial snow/ice, 13-barren land, 41-deciduous forest, 42-conifer forest, 43-mixed forest, 71-grassland/herbaceous, 90-woody wetlands, 91-ermergent herbaceous wetlands. Anthropogenic land use classes: 21-developed, open space, 22-developed, low intensity, 23-developed, medium intensity, 24-developed, high intensity, 81-pasture/hay, 82-cultivated crops. Download date: 30 March 2015 30m X 30m Categorical raster NA https://www.mrlc.gov/data/nlcd-2016-land-cover-conus
  Landscape Metrics Units Class Metric Type Scale Reference Formulas StreamCat Table Name
  PctUrbHi2016Cat, PctUrbHi2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, high intensity land use. Derived from the nlcd2016.tif  (class 24) landscape raster. % Disturbance Urban Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctUrbHi2016CatRp100, PctUrbHi2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, high intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 24) landscape layers. % Disturbance Urban Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctUrbMd2016Cat, PctUrbMd2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, medium intensity land use. Derived from the nlcd2016.tif  (class 23) landscape raster. % Disturbance Urban Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctUrbMd2016CatRp100, PctUrbMd2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, medium intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 23) landscape layers. % Disturbance Urban Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctUrbLo2016Cat, PctUrbLo2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, low intensity land use. Derived from the nlcd2016.tif  (class 22) landscape raster. % Disturbance Urban Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctUrbLo2016CatRp100, PctUrbLo2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, low intensity land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 22) landscape layers. % Disturbance Urban Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctUrbOp2016Cat, PctUrbOp2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as developed, open space land use. Derived from the nlcd2016.tif  (class 21) landscape raster. % Disturbance Urban Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctUrbOp2016CatRp100, PctUrbOp2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as developed, open space land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 21) landscape layers. % Disturbance Urban Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctCrop2016Cat, PctCrop2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as row crop land use. Derived from the nlcd2016.tif  (class 82) landscape raster. % Disturbance Agriculture Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctCrop2016CatRp100, PctCrop2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as crop land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 82) landscape layers. % Disturbance Urban Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctHay2016Cat, PctHay2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as pasture/hay land use. Derived from the nlcd2016.tif  (class 81) landscape raster. % Disturbance Agriculture Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctHay2016CatRp100, PctHay2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as pasture/hay land use within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 81) landscape layers. % Disturbance Agriculture Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctDecid2016Cat, PctDecid2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as deciduous forest land cover. Derived from the nlcd2016.tif  (class 41) landscape raster. % Natural Land Cover Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctDecid2016CatRp100, PctDecid2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as deciduous forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 41) landscape layers. % Natural Land Cover Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctConif2016Cat, PctConif2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as evergreen forest land cover. Derived from the nlcd2016.tif  (class 42) landscape raster. % Natural Land Cover Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctConif2016CatRp100, PctConif2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as evergreen forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 42) landscape layers. % Natural Land Cover Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctMxFst2016Cat, PctMxFst2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as mixed deciduous/evergreen forest land cover. Derived from the nlcd2016.tif  (class 43) landscape raster. % Natural Land Cover Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctMxFst2016CatRp100, PctMxFst2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as mixed deciduous/evergreen forest land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 43) landscape layers. % Natural Land Cover Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctBl2016Cat, PctBl2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as areas of bedrock, desert pavement, scarps, talus, slides, volcanic materical, glacial debris, sand dunes, strip mines, gravel pits, and other accumulations of earthen material. Derived from the nlcd2016.tif  (class 31) landscape raster. % Natural Land Cover Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctBl2016CatRp100, PctBl2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as areas of bedrock, desert pavement, scarps, talus, slides, volcanic materical, glacial debris, sand dunes, strip mines, gravel pits, and other accumulations of earthen material within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 31) landscape layers. % Natural Land Cover Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctOw2016Cat, PctOw2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as open water land cover. Derived from the nlcd2016.tif  (class 11) landscape raster. % Natural Land Cover Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctOw2016CatRp100, PctOw2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as open water land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 11) landscape layers. % Natural Land Cover Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctIce2016Cat, PctIce2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as ice/snow land cover. Derived from the nlcd2016.tif  (class 12) landscape raster. % Natural Land Cover Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctIce2016CatRp100, PctIce2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as ice/snow land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 12) landscape layers. % Natural Land Cover Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctHbWet2016Cat, PctHbWet2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as herbaceous wetland land cover. Derived from the nlcd2016.tif  (class 95) landscape raster. % Natural Land Cover Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctHbWet2016CatRp100, PctHbWet2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as emergent herbaceous wetland land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 95) landscape layers. % Natural Land Cover Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctWdWet2016Cat, PctWdWet2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as woody wetland land cover. Derived from the nlcd2016.tif  (class 90) landscape raster. % Natural Land Cover Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctWdWet2016CatRp100, PctWdWet2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as woody wetland land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 90) landscape layers. % Natural Land Cover Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctShrb2016Cat, PctShrb2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as shrub/scrub land cover. Derived from the nlcd2016.tif  (class 52) landscape raster. % Natural Land Cover Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctShrb2016CatRp100, PctShrb2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as shrub/scrub land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 52) landscape layers. % Natural Land Cover Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv
  PctGrs2016Cat, PctGrs2016Ws – % of the local catchment (Cat) and upstream watershed (Ws) areas classified as grassland/herbaceous land cover. Derived from the nlcd2016.tif  (class 71) landscape raster. % Natural Land Cover Watershed Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of pixels within the catchment across all land types.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i in catchment c, and nc is the count of pixels across all land cover classes in catchment c for all contributing catchments, including the focal catchment for watershed w (cϵw). NLCD2016_<RegionID>.csv, NLCD2016_<StateID>.csv
  PctGrs2016CatRp100, PctGrs2016WsRp100 - % of the local catchment (Cat) and upstream watershed (Ws) classified as grassland/herbaceous land cover within a 100-m wide buffer of the NHD stream lines (Rp100). Derived as the intersection between RipBuf100 and nlcd2016.tif (class 71) landscape layers. % Natural Land Cover Riparian Yang, Limin, Jin, Suming, Danielson, Patrick, Homer, Collin G., Gass, L., Bender, S.M., Case, Adam, Costello, C., Dewitz, Jon A., Fry, Joyce A., Funk, M., Granneman, Brian J., Liknes, G.C., Rigge, Matthew B., Xian, George, A new generation of the United States National Land Cover Database—Requirements, research priorities, design, and implementation strategies: ISPRS Journal of Photogrammetry and Remote Sensing, v. 146, p. 108–123, at https://doi.org/10.1016/j.isprsjprs.2018.09.006 Local catchment: Pc,i=100∑xi/nc, where xi is a pixel of land cover type i and nc is the count of all pixels across cover types within the intersection of a 100-m buffer of the NHD stream line and the local catchment.  Full watershed: Pw,i=100∑xc,i/∑nc cϵw, where xc,i is the count of pixel class i within the intersection of a 100-m buffer of the NHD stream line and catchment c and nc is the count of pixels across all land cover classes in the intersection of the buffer and catchment c for all contributing catchments, including the focal catchment  of watershed w (cϵw). NLCD2016_RipBuf100_<RegionID>.csv, NLCD2016_RipBuf100_<StateID>.csv