Pandora vs TropOMI totHCHO

generated by: Barron H. Henderson
institution: US EPA
last updated: 2025-12-15T01-0500

1: Report Description

This report has plots organized by analysis region for Pandora totHCHO. All data uses the version 3 (v3) TEMPO data products. Except when evaluating the effect of cloud fraction, all TEMPO data has been filtered for effective cloud fraction less than 0.15 based on SAO recommendation at the GeoXO ACX May meeting. All data has also been filtered for high quality and having solar zenith angle less than 70 degrees

Pandora intersections are any TEMPO pixel that overlaps a 0.03-degree radius. Only intersections within 15 minutes of a TEMPO measurement are used. Statistics (mean, std, quantiles) are all based on each plus/minus 15-minute period or pooled data.

• There is a major section for all sites and then a section for each site. Each section shows comparisons:

  • by month and week,

  • by solar zenith angle and local standard hour,

  • by TEMPO value, and

  • by location (only for all sites section)

TropOMI intersections include both Pandora locations and Nonattainment Areas (NAA). However, the NAA are larger and include more pixels. The NAA have more area in the West, so the time-series including all sites are skewed by the western performance. By comparison, the Pandora are more in the East, so the time-series are any TropOMI pixel that overlaps a TEMPO pixel. Statistics (mean, std, quantiles) are all based on all intersections within the region.

• Within each section, there are three types of plots:

  • box plots showing the inter-quartile range,

  • scatter plots summarizing the ability to characterize variation, and

  • performance statistics plots.

• The performance statistics plots show:

  • count by bin,

  • correlation (R),

  • Index of Agreement (IOA),

  • Mean Bias (MB), Mean Absolute Bias (MAB), and Root Mean Squared Error (RMSE)

  • MB, MAB, and RMSE are also shown as percents by normalizing to the reference mean

Use section headers to navigate by Headings to a specific analysis region.

2: Location Overview

Figure 2.1 shows the PGN stations used for NO2. Comparisons include only pixels within 0.03 degrees of each station. Only Pandora stations selected for high quality HCHO (solid markers) are included.

Figure 2.1: All Pandora stations used for NO2 analysis are shown, but only stations with a solid marker are used for HCHO.

3: All Sites

This section shows plots for all sites

3.1: All Sites by month

Figure 3.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at All Sites.

Figure 3.1.2: Scatter plot medians by month at All Sites with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 3.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at All Sites by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

3.2: All Sites by week

Figure 3.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at All Sites.

Figure 3.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at All Sites for average weekday.

Figure 3.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at All Sites for average weekend.

Figure 3.2.4: Scatter plot medians by week at All Sites with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 3.2.5: Scatter plot medians by week at All Sites with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 3.2.6: Scatter plot medians by week at All Sites with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

3.3: All Sites by loc

Figure 3.3.1: Median by loc at All Sites.

Figure 3.3.2: Median Bias in #/cm2 by loc at All Sites.

Figure 3.3.3: Normalized Median Bias as a percent plots by loc at All Sites.

Figure 3.3.4: Mean by loc at All Sites.

Figure 3.3.5: Mean Bias in #/cm2 by loc at All Sites.

Figure 3.3.6: Normalized Mean Bias as a percent plots by loc at All Sites.

Figure 3.3.7: Correlation at each loc at All Sites.

Figure 3.3.8: Box (25%, 50%, 75%) and whisker (min/max) plots by loc at All Sites.

Figure 3.3.9: Scatter plot medians by loc at All Sites with linear regression fit. Each point has all pixels in a loc and error bars represent the 25% to 75% range of those pixels.

Figure 3.3.10: Count by loc at All Sites.

Figure 3.3.11: Correlation (R) and index of agreement (IOA) by loc at All Sites.

Figure 3.3.12: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by loc at All Sites.

Figure 3.3.13: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by loc at All Sites. Percents are normalized by the reference mean.

3.4: All Sites by tempo

Figure 3.4.1: Count by tempo at All Sites.

Figure 3.4.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at All Sites.

Figure 3.4.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at All Sites. Percents are normalized by the reference mean.

4: AldineTX

This section shows plots for AldineTX PGN station at approximately -95.3262E 29.9011W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -95.4262E, 29.8011N, -95.2262E, 30.0011N for TropOMI comparisons.

4.1: AldineTX by month

Figure 4.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at AldineTX.

Figure 4.1.2: Scatter plot medians by month at AldineTX with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 4.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at AldineTX by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

4.2: AldineTX by week

Figure 4.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at AldineTX.

Figure 4.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at AldineTX for average weekday.

Figure 4.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at AldineTX for average weekend.

Figure 4.2.4: Scatter plot medians by week at AldineTX with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 4.2.5: Scatter plot medians by week at AldineTX with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 4.2.6: Scatter plot medians by week at AldineTX with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

4.3: AldineTX by tempo

Figure 4.3.1: Count by tempo at AldineTX.

Figure 4.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at AldineTX.

Figure 4.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at AldineTX. Percents are normalized by the reference mean.

5: ArlingtonTX

This section shows plots for ArlingtonTX PGN station at approximately -97.1142E 32.7316W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -97.2142E, 32.6316N, -97.0142E, 32.8316N for TropOMI comparisons.

5.1: ArlingtonTX by month

Figure 5.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at ArlingtonTX.

Figure 5.1.2: Scatter plot medians by month at ArlingtonTX with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 5.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at ArlingtonTX by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

5.2: ArlingtonTX by week

Figure 5.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at ArlingtonTX.

Figure 5.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at ArlingtonTX for average weekday.

Figure 5.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at ArlingtonTX for average weekend.

Figure 5.2.4: Scatter plot medians by week at ArlingtonTX with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 5.2.5: Scatter plot medians by week at ArlingtonTX with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 5.2.6: Scatter plot medians by week at ArlingtonTX with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

5.3: ArlingtonTX by tempo

Figure 5.3.1: Count by tempo at ArlingtonTX.

Figure 5.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at ArlingtonTX.

Figure 5.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at ArlingtonTX. Percents are normalized by the reference mean.

6: Atl-S.DeKalb

This section shows plots for Atl-S.DeKalb PGN station at approximately -84.3958E 33.779W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -84.4958E, 33.679N, -84.2958E, 33.879N for TropOMI comparisons.

6.1: Atl-S.DeKalb by month

Figure 6.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at Atl-S.DeKalb.

Figure 6.1.2: Scatter plot medians by month at Atl-S.DeKalb with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 6.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at Atl-S.DeKalb by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

6.2: Atl-S.DeKalb by week

Figure 6.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at Atl-S.DeKalb.

Figure 6.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at Atl-S.DeKalb for average weekday.

Figure 6.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at Atl-S.DeKalb for average weekend.

Figure 6.2.4: Scatter plot medians by week at Atl-S.DeKalb with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 6.2.5: Scatter plot medians by week at Atl-S.DeKalb with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 6.2.6: Scatter plot medians by week at Atl-S.DeKalb with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

6.3: Atl-S.DeKalb by tempo

Figure 6.3.1: Count by tempo at Atl-S.DeKalb.

Figure 6.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at Atl-S.DeKalb.

Figure 6.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at Atl-S.DeKalb. Percents are normalized by the reference mean.

7: AtlantaGA

This section shows plots for AtlantaGA PGN station at approximately -84.3958E 33.779W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -84.4958E, 33.679N, -84.2958E, 33.879N for TropOMI comparisons.

7.1: AtlantaGA by month

Figure 7.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at AtlantaGA.

Figure 7.1.2: Scatter plot medians by month at AtlantaGA with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 7.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at AtlantaGA by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

7.2: AtlantaGA by week

Figure 7.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at AtlantaGA.

Figure 7.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at AtlantaGA for average weekday.

Figure 7.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at AtlantaGA for average weekend.

Figure 7.2.4: Scatter plot medians by week at AtlantaGA with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 7.2.5: Scatter plot medians by week at AtlantaGA with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 7.2.6: Scatter plot medians by week at AtlantaGA with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

7.3: AtlantaGA by tempo

Figure 7.3.1: Count by tempo at AtlantaGA.

Figure 7.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at AtlantaGA.

Figure 7.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at AtlantaGA. Percents are normalized by the reference mean.

8: BayonneNJ

This section shows plots for BayonneNJ PGN station at approximately -74.1261E 40.6703W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -74.2261E, 40.5703N, -74.0261E, 40.7703N for TropOMI comparisons.

8.1: BayonneNJ by month

Figure 8.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at BayonneNJ.

Figure 8.1.2: Scatter plot medians by month at BayonneNJ with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 8.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at BayonneNJ by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

8.2: BayonneNJ by week

Figure 8.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BayonneNJ.

Figure 8.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BayonneNJ for average weekday.

Figure 8.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BayonneNJ for average weekend.

Figure 8.2.4: Scatter plot medians by week at BayonneNJ with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 8.2.5: Scatter plot medians by week at BayonneNJ with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 8.2.6: Scatter plot medians by week at BayonneNJ with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

8.3: BayonneNJ by tempo

Figure 8.3.1: Count by tempo at BayonneNJ.

Figure 8.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at BayonneNJ.

Figure 8.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at BayonneNJ. Percents are normalized by the reference mean.

9: BeltsvilleMD

This section shows plots for BeltsvilleMD PGN station at approximately -76.8783E 39.0553W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -76.9783E, 38.9553N, -76.7783E, 39.1553N for TropOMI comparisons.

9.1: BeltsvilleMD by month

Figure 9.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at BeltsvilleMD.

Figure 9.1.2: Scatter plot medians by month at BeltsvilleMD with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 9.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at BeltsvilleMD by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

9.2: BeltsvilleMD by week

Figure 9.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BeltsvilleMD.

Figure 9.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BeltsvilleMD for average weekday.

Figure 9.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BeltsvilleMD for average weekend.

Figure 9.2.4: Scatter plot medians by week at BeltsvilleMD with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 9.2.5: Scatter plot medians by week at BeltsvilleMD with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 9.2.6: Scatter plot medians by week at BeltsvilleMD with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

9.3: BeltsvilleMD by tempo

Figure 9.3.1: Count by tempo at BeltsvilleMD.

Figure 9.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at BeltsvilleMD.

Figure 9.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at BeltsvilleMD. Percents are normalized by the reference mean.

10: BoulderCO

This section shows plots for BoulderCO PGN station at approximately -105.26E 39.99W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -105.36E, 39.89N, -105.16E, 40.09N for TropOMI comparisons.

10.1: BoulderCO by month

Figure 10.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at BoulderCO.

Figure 10.1.2: Scatter plot medians by month at BoulderCO with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 10.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at BoulderCO by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

10.2: BoulderCO by week

Figure 10.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BoulderCO.

Figure 10.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BoulderCO for average weekday.

Figure 10.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BoulderCO for average weekend.

Figure 10.2.4: Scatter plot medians by week at BoulderCO with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 10.2.5: Scatter plot medians by week at BoulderCO with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 10.2.6: Scatter plot medians by week at BoulderCO with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

10.3: BoulderCO by tempo

Figure 10.3.1: Count by tempo at BoulderCO.

Figure 10.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at BoulderCO.

Figure 10.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at BoulderCO. Percents are normalized by the reference mean.

11: BristolPA

This section shows plots for BristolPA PGN station at approximately -74.8824E 40.1074W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -74.9824E, 40.0074N, -74.7824E, 40.2074N for TropOMI comparisons.

11.1: BristolPA by month

Figure 11.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at BristolPA.

Figure 11.1.2: Scatter plot medians by month at BristolPA with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 11.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at BristolPA by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

11.2: BristolPA by week

Figure 11.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BristolPA.

Figure 11.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BristolPA for average weekday.

Figure 11.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at BristolPA for average weekend.

Figure 11.2.4: Scatter plot medians by week at BristolPA with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 11.2.5: Scatter plot medians by week at BristolPA with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 11.2.6: Scatter plot medians by week at BristolPA with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

11.3: BristolPA by tempo

Figure 11.3.1: Count by tempo at BristolPA.

Figure 11.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at BristolPA.

Figure 11.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at BristolPA. Percents are normalized by the reference mean.

12: ChapelHillNC

This section shows plots for ChapelHillNC PGN station at approximately -79.0933E 35.9708W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -79.1933E, 35.8708N, -78.9933E, 36.0708N for TropOMI comparisons.

12.1: ChapelHillNC by month

Figure 12.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at ChapelHillNC.

Figure 12.1.2: Scatter plot medians by month at ChapelHillNC with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 12.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at ChapelHillNC by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

12.2: ChapelHillNC by week

Figure 12.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at ChapelHillNC.

Figure 12.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at ChapelHillNC for average weekday.

Figure 12.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at ChapelHillNC for average weekend.

Figure 12.2.4: Scatter plot medians by week at ChapelHillNC with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 12.2.5: Scatter plot medians by week at ChapelHillNC with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 12.2.6: Scatter plot medians by week at ChapelHillNC with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

12.3: ChapelHillNC by tempo

Figure 12.3.1: Count by tempo at ChapelHillNC.

Figure 12.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at ChapelHillNC.

Figure 12.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at ChapelHillNC. Percents are normalized by the reference mean.

13: CornwallCT

This section shows plots for CornwallCT PGN station at approximately -73.2973E 41.8213W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -73.3973E, 41.7213N, -73.1973E, 41.9213N for TropOMI comparisons.

13.1: CornwallCT by month

Figure 13.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at CornwallCT.

Figure 13.1.2: Scatter plot medians by month at CornwallCT with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 13.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at CornwallCT by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

13.2: CornwallCT by week

Figure 13.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at CornwallCT.

Figure 13.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at CornwallCT for average weekday.

Figure 13.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at CornwallCT for average weekend.

Figure 13.2.4: Scatter plot medians by week at CornwallCT with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 13.2.5: Scatter plot medians by week at CornwallCT with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 13.2.6: Scatter plot medians by week at CornwallCT with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

13.3: CornwallCT by tempo

Figure 13.3.1: Count by tempo at CornwallCT.

Figure 13.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at CornwallCT.

Figure 13.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at CornwallCT. Percents are normalized by the reference mean.

14: DearbornMI

This section shows plots for DearbornMI PGN station at approximately -83.1488E 42.3067W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -83.2488E, 42.2067N, -83.0488E, 42.4067N for TropOMI comparisons.

14.1: DearbornMI by month

Figure 14.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at DearbornMI.

Figure 14.1.2: Scatter plot medians by month at DearbornMI with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 14.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at DearbornMI by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

14.2: DearbornMI by week

Figure 14.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at DearbornMI.

Figure 14.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at DearbornMI for average weekday.

Figure 14.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at DearbornMI for average weekend.

Figure 14.2.4: Scatter plot medians by week at DearbornMI with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 14.2.5: Scatter plot medians by week at DearbornMI with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 14.2.6: Scatter plot medians by week at DearbornMI with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

14.3: DearbornMI by tempo

Figure 14.3.1: Count by tempo at DearbornMI.

Figure 14.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at DearbornMI.

Figure 14.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at DearbornMI. Percents are normalized by the reference mean.

15: GreenbeltMD

This section shows plots for GreenbeltMD PGN station at approximately -76.8396E 38.9926W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -76.9396E, 38.8926N, -76.7396E, 39.0926N for TropOMI comparisons.

15.1: GreenbeltMD by month

Figure 15.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at GreenbeltMD.

Figure 15.1.2: Scatter plot medians by month at GreenbeltMD with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 15.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at GreenbeltMD by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

15.2: GreenbeltMD by week

Figure 15.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at GreenbeltMD.

Figure 15.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at GreenbeltMD for average weekday.

Figure 15.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at GreenbeltMD for average weekend.

Figure 15.2.4: Scatter plot medians by week at GreenbeltMD with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 15.2.5: Scatter plot medians by week at GreenbeltMD with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 15.2.6: Scatter plot medians by week at GreenbeltMD with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

15.3: GreenbeltMD by tempo

Figure 15.3.1: Count by tempo at GreenbeltMD.

Figure 15.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at GreenbeltMD.

Figure 15.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at GreenbeltMD. Percents are normalized by the reference mean.

16: HamptonVA-HU

This section shows plots for HamptonVA-HU PGN station at approximately -76.3366E 37.0203W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -76.4366E, 36.9203N, -76.2366E, 37.1203N for TropOMI comparisons.

16.1: HamptonVA-HU by month

Figure 16.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at HamptonVA-HU.

Figure 16.1.2: Scatter plot medians by month at HamptonVA-HU with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 16.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at HamptonVA-HU by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

16.2: HamptonVA-HU by week

Figure 16.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at HamptonVA-HU.

Figure 16.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at HamptonVA-HU for average weekday.

Figure 16.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at HamptonVA-HU for average weekend.

Figure 16.2.4: Scatter plot medians by week at HamptonVA-HU with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 16.2.5: Scatter plot medians by week at HamptonVA-HU with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 16.2.6: Scatter plot medians by week at HamptonVA-HU with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

16.3: HamptonVA-HU by tempo

Figure 16.3.1: Count by tempo at HamptonVA-HU.

Figure 16.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at HamptonVA-HU.

Figure 16.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at HamptonVA-HU. Percents are normalized by the reference mean.

17: HoustonTX

This section shows plots for HoustonTX PGN station at approximately -95.34E 29.72W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -95.44E, 29.62N, -95.24E, 29.82N for TropOMI comparisons.

17.1: HoustonTX by month

Figure 17.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at HoustonTX.

Figure 17.1.2: Scatter plot medians by month at HoustonTX with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 17.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at HoustonTX by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

17.2: HoustonTX by week

Figure 17.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at HoustonTX.

Figure 17.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at HoustonTX for average weekday.

Figure 17.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at HoustonTX for average weekend.

Figure 17.2.4: Scatter plot medians by week at HoustonTX with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 17.2.5: Scatter plot medians by week at HoustonTX with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 17.2.6: Scatter plot medians by week at HoustonTX with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

17.3: HoustonTX by tempo

Figure 17.3.1: Count by tempo at HoustonTX.

Figure 17.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at HoustonTX.

Figure 17.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at HoustonTX. Percents are normalized by the reference mean.

18: HuntsvilleAL

This section shows plots for HuntsvilleAL PGN station at approximately -86.6464E 34.7252W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -86.7464E, 34.6252N, -86.5464E, 34.8252N for TropOMI comparisons.

18.1: HuntsvilleAL by month

Figure 18.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at HuntsvilleAL.

Figure 18.1.2: Scatter plot medians by month at HuntsvilleAL with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 18.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at HuntsvilleAL by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

18.2: HuntsvilleAL by week

Figure 18.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at HuntsvilleAL.

Figure 18.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at HuntsvilleAL for average weekday.

Figure 18.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at HuntsvilleAL for average weekend.

Figure 18.2.4: Scatter plot medians by week at HuntsvilleAL with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 18.2.5: Scatter plot medians by week at HuntsvilleAL with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 18.2.6: Scatter plot medians by week at HuntsvilleAL with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

18.3: HuntsvilleAL by tempo

Figure 18.3.1: Count by tempo at HuntsvilleAL.

Figure 18.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at HuntsvilleAL.

Figure 18.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at HuntsvilleAL. Percents are normalized by the reference mean.

19: LondonderryNH

This section shows plots for LondonderryNH PGN station at approximately -71.3801E 42.8625W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -71.4801E, 42.7625N, -71.2801E, 42.9625N for TropOMI comparisons.

19.1: LondonderryNH by month

Figure 19.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at LondonderryNH.

Figure 19.1.2: Scatter plot medians by month at LondonderryNH with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 19.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at LondonderryNH by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

19.2: LondonderryNH by week

Figure 19.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at LondonderryNH.

Figure 19.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at LondonderryNH for average weekday.

Figure 19.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at LondonderryNH for average weekend.

Figure 19.2.4: Scatter plot medians by week at LondonderryNH with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 19.2.5: Scatter plot medians by week at LondonderryNH with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 19.2.6: Scatter plot medians by week at LondonderryNH with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

19.3: LondonderryNH by tempo

Figure 19.3.1: Count by tempo at LondonderryNH.

Figure 19.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at LondonderryNH.

Figure 19.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at LondonderryNH. Percents are normalized by the reference mean.

20: MadisonCT

This section shows plots for MadisonCT PGN station at approximately -72.5533E 41.2568W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -72.6533E, 41.1568N, -72.4533E, 41.3568N for TropOMI comparisons.

20.1: MadisonCT by month

Figure 20.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at MadisonCT.

Figure 20.1.2: Scatter plot medians by month at MadisonCT with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 20.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at MadisonCT by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

20.2: MadisonCT by week

Figure 20.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at MadisonCT.

Figure 20.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at MadisonCT for average weekday.

Figure 20.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at MadisonCT for average weekend.

Figure 20.2.4: Scatter plot medians by week at MadisonCT with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 20.2.5: Scatter plot medians by week at MadisonCT with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 20.2.6: Scatter plot medians by week at MadisonCT with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

20.3: MadisonCT by tempo

Figure 20.3.1: Count by tempo at MadisonCT.

Figure 20.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at MadisonCT.

Figure 20.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at MadisonCT. Percents are normalized by the reference mean.

21: ManhattanNY-CCNY

This section shows plots for ManhattanNY-CCNY PGN station at approximately -73.9505E 40.8153W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -74.0505E, 40.7153N, -73.8505E, 40.9153N for TropOMI comparisons.

21.1: ManhattanNY-CCNY by month

Figure 21.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at ManhattanNY-CCNY.

Figure 21.1.2: Scatter plot medians by month at ManhattanNY-CCNY with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 21.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at ManhattanNY-CCNY by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

21.2: ManhattanNY-CCNY by week

Figure 21.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at ManhattanNY-CCNY.

Figure 21.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at ManhattanNY-CCNY for average weekday.

Figure 21.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at ManhattanNY-CCNY for average weekend.

Figure 21.2.4: Scatter plot medians by week at ManhattanNY-CCNY with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 21.2.5: Scatter plot medians by week at ManhattanNY-CCNY with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 21.2.6: Scatter plot medians by week at ManhattanNY-CCNY with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

21.3: ManhattanNY-CCNY by tempo

Figure 21.3.1: Count by tempo at ManhattanNY-CCNY.

Figure 21.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at ManhattanNY-CCNY.

Figure 21.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at ManhattanNY-CCNY. Percents are normalized by the reference mean.

22: MexicoCity-UNAM

This section shows plots for MexicoCity-UNAM PGN station at approximately -99.1761E 19.3262W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -99.2761E, 19.2262N, -99.0761E, 19.4262N for TropOMI comparisons.

22.1: MexicoCity-UNAM by month

Figure 22.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at MexicoCity-UNAM.

Figure 22.1.2: Scatter plot medians by month at MexicoCity-UNAM with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 22.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at MexicoCity-UNAM by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

22.2: MexicoCity-UNAM by week

Figure 22.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at MexicoCity-UNAM.

Figure 22.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at MexicoCity-UNAM for average weekday.

Figure 22.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at MexicoCity-UNAM for average weekend.

Figure 22.2.4: Scatter plot medians by week at MexicoCity-UNAM with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 22.2.5: Scatter plot medians by week at MexicoCity-UNAM with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 22.2.6: Scatter plot medians by week at MexicoCity-UNAM with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

22.3: MexicoCity-UNAM by tempo

Figure 22.3.1: Count by tempo at MexicoCity-UNAM.

Figure 22.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at MexicoCity-UNAM.

Figure 22.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at MexicoCity-UNAM. Percents are normalized by the reference mean.

23: MexicoCity-Vallejo

This section shows plots for MexicoCity-Vallejo PGN station at approximately -99.147E 19.483W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -99.247E, 19.383N, -99.047E, 19.583N for TropOMI comparisons.

23.1: MexicoCity-Vallejo by month

Figure 23.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at MexicoCity-Vallejo.

Figure 23.1.2: Scatter plot medians by month at MexicoCity-Vallejo with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 23.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at MexicoCity-Vallejo by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

23.2: MexicoCity-Vallejo by week

Figure 23.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at MexicoCity-Vallejo.

Figure 23.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at MexicoCity-Vallejo for average weekday.

Figure 23.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at MexicoCity-Vallejo for average weekend.

Figure 23.2.4: Scatter plot medians by week at MexicoCity-Vallejo with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 23.2.5: Scatter plot medians by week at MexicoCity-Vallejo with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 23.2.6: Scatter plot medians by week at MexicoCity-Vallejo with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

23.3: MexicoCity-Vallejo by tempo

Figure 23.3.1: Count by tempo at MexicoCity-Vallejo.

Figure 23.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at MexicoCity-Vallejo.

Figure 23.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at MexicoCity-Vallejo. Percents are normalized by the reference mean.

24: NewBrunswickNJ

This section shows plots for NewBrunswickNJ PGN station at approximately -74.4294E 40.4622W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -74.5294E, 40.3622N, -74.3294E, 40.5622N for TropOMI comparisons.

24.1: NewBrunswickNJ by month

Figure 24.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at NewBrunswickNJ.

Figure 24.1.2: Scatter plot medians by month at NewBrunswickNJ with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 24.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at NewBrunswickNJ by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

24.2: NewBrunswickNJ by week

Figure 24.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at NewBrunswickNJ.

Figure 24.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at NewBrunswickNJ for average weekday.

Figure 24.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at NewBrunswickNJ for average weekend.

Figure 24.2.4: Scatter plot medians by week at NewBrunswickNJ with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 24.2.5: Scatter plot medians by week at NewBrunswickNJ with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 24.2.6: Scatter plot medians by week at NewBrunswickNJ with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

24.3: NewBrunswickNJ by tempo

Figure 24.3.1: Count by tempo at NewBrunswickNJ.

Figure 24.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at NewBrunswickNJ.

Figure 24.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at NewBrunswickNJ. Percents are normalized by the reference mean.

25: NewHavenCT

This section shows plots for NewHavenCT PGN station at approximately -72.9029E 41.3014W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -73.0029E, 41.2014N, -72.8029E, 41.4014N for TropOMI comparisons.

25.1: NewHavenCT by month

Figure 25.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at NewHavenCT.

Figure 25.1.2: Scatter plot medians by month at NewHavenCT with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 25.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at NewHavenCT by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

25.2: NewHavenCT by week

Figure 25.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at NewHavenCT.

Figure 25.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at NewHavenCT for average weekday.

Figure 25.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at NewHavenCT for average weekend.

Figure 25.2.4: Scatter plot medians by week at NewHavenCT with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 25.2.5: Scatter plot medians by week at NewHavenCT with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 25.2.6: Scatter plot medians by week at NewHavenCT with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

25.3: NewHavenCT by tempo

Figure 25.3.1: Count by tempo at NewHavenCT.

Figure 25.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at NewHavenCT.

Figure 25.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at NewHavenCT. Percents are normalized by the reference mean.

26: PhiladelphiaPA

This section shows plots for PhiladelphiaPA PGN station at approximately -75.0811E 39.9919W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -75.1811E, 39.8919N, -74.9811E, 40.0919N for TropOMI comparisons.

26.1: PhiladelphiaPA by month

Figure 26.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at PhiladelphiaPA.

Figure 26.1.2: Scatter plot medians by month at PhiladelphiaPA with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 26.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at PhiladelphiaPA by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

26.2: PhiladelphiaPA by week

Figure 26.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at PhiladelphiaPA.

Figure 26.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at PhiladelphiaPA for average weekday.

Figure 26.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at PhiladelphiaPA for average weekend.

Figure 26.2.4: Scatter plot medians by week at PhiladelphiaPA with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 26.2.5: Scatter plot medians by week at PhiladelphiaPA with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 26.2.6: Scatter plot medians by week at PhiladelphiaPA with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

26.3: PhiladelphiaPA by tempo

Figure 26.3.1: Count by tempo at PhiladelphiaPA.

Figure 26.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at PhiladelphiaPA.

Figure 26.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at PhiladelphiaPA. Percents are normalized by the reference mean.

27: PittsburghPA

This section shows plots for PittsburghPA PGN station at approximately -79.9608E 40.4655W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -80.0608E, 40.3655N, -79.8608E, 40.5655N for TropOMI comparisons.

27.1: PittsburghPA by month

Figure 27.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at PittsburghPA.

Figure 27.1.2: Scatter plot medians by month at PittsburghPA with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 27.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at PittsburghPA by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

27.2: PittsburghPA by week

Figure 27.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at PittsburghPA.

Figure 27.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at PittsburghPA for average weekday.

Figure 27.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at PittsburghPA for average weekend.

Figure 27.2.4: Scatter plot medians by week at PittsburghPA with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 27.2.5: Scatter plot medians by week at PittsburghPA with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 27.2.6: Scatter plot medians by week at PittsburghPA with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

27.3: PittsburghPA by tempo

Figure 27.3.1: Count by tempo at PittsburghPA.

Figure 27.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at PittsburghPA.

Figure 27.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at PittsburghPA. Percents are normalized by the reference mean.

28: SWDetroitMI

This section shows plots for SWDetroitMI PGN station at approximately -83.1068E 42.3026W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -83.2068E, 42.2026N, -83.0068E, 42.4026N for TropOMI comparisons.

28.1: SWDetroitMI by month

Figure 28.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at SWDetroitMI.

Figure 28.1.2: Scatter plot medians by month at SWDetroitMI with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 28.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at SWDetroitMI by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

28.2: SWDetroitMI by week

Figure 28.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at SWDetroitMI.

Figure 28.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at SWDetroitMI for average weekday.

Figure 28.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at SWDetroitMI for average weekend.

Figure 28.2.4: Scatter plot medians by week at SWDetroitMI with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 28.2.5: Scatter plot medians by week at SWDetroitMI with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 28.2.6: Scatter plot medians by week at SWDetroitMI with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

28.3: SWDetroitMI by tempo

Figure 28.3.1: Count by tempo at SWDetroitMI.

Figure 28.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at SWDetroitMI.

Figure 28.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at SWDetroitMI. Percents are normalized by the reference mean.

29: Toronto-Scar

This section shows plots for Toronto-Scar PGN station at approximately -79.1874E 43.7843W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -79.2874E, 43.6843N, -79.0874E, 43.8843N for TropOMI comparisons.

29.1: Toronto-Scar by month

Figure 29.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at Toronto-Scar.

Figure 29.1.2: Scatter plot medians by month at Toronto-Scar with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 29.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at Toronto-Scar by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

29.2: Toronto-Scar by week

Figure 29.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at Toronto-Scar.

Figure 29.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at Toronto-Scar for average weekday.

Figure 29.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at Toronto-Scar for average weekend.

Figure 29.2.4: Scatter plot medians by week at Toronto-Scar with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 29.2.5: Scatter plot medians by week at Toronto-Scar with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 29.2.6: Scatter plot medians by week at Toronto-Scar with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

29.3: Toronto-Scar by tempo

Figure 29.3.1: Count by tempo at Toronto-Scar.

Figure 29.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at Toronto-Scar.

Figure 29.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at Toronto-Scar. Percents are normalized by the reference mean.

30: WashingtonDC

This section shows plots for WashingtonDC PGN station at approximately -77.0124E 38.9218W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -77.1124E, 38.8218N, -76.9124E, 39.0218N for TropOMI comparisons.

30.1: WashingtonDC by month

Figure 30.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at WashingtonDC.

Figure 30.1.2: Scatter plot medians by month at WashingtonDC with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 30.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at WashingtonDC by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

30.2: WashingtonDC by week

Figure 30.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at WashingtonDC.

Figure 30.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at WashingtonDC for average weekday.

Figure 30.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at WashingtonDC for average weekend.

Figure 30.2.4: Scatter plot medians by week at WashingtonDC with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 30.2.5: Scatter plot medians by week at WashingtonDC with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 30.2.6: Scatter plot medians by week at WashingtonDC with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

30.3: WashingtonDC by tempo

Figure 30.3.1: Count by tempo at WashingtonDC.

Figure 30.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at WashingtonDC.

Figure 30.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at WashingtonDC. Percents are normalized by the reference mean.

31: Windsor-West

This section shows plots for Windsor-West PGN station at approximately -83.0731E 42.2929W. Analysis includes all pixels with 0.03 degrees for Pandora comparisons and within the bounding box -83.1731E, 42.1929N, -82.9731E, 42.3929N for TropOMI comparisons.

31.1: Windsor-West by month

Figure 31.1.1: Box (25%, 50%, 75%) and whisker (min/max) plots by month at Windsor-West.

Figure 31.1.2: Scatter plot medians by month at Windsor-West with linear regression fit. Each point has all pixels in a month and error bars represent the 25% to 75% range of those pixels.

Figure 31.1.3: Count, correlation (R), index of agreement (IOA), mean bias (MB), mean absolute bias (MAB), root mean squared error (RMSE) at Windsor-West by month. MB, MAB, and RMSE are also sown as percents normalized to the reference mean.

31.2: Windsor-West by week

Figure 31.2.1: Box (25%, 50%, 75%) and whisker (min/max) plots by week at Windsor-West.

Figure 31.2.2: Box (25%, 50%, 75%) and whisker (min/max) plots by week at Windsor-West for average weekday.

Figure 31.2.3: Box (25%, 50%, 75%) and whisker (min/max) plots by week at Windsor-West for average weekend.

Figure 31.2.4: Scatter plot medians by week at Windsor-West with linear regression fit. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 31.2.5: Scatter plot medians by week at Windsor-West with linear regression fit for weekdays only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

Figure 31.2.6: Scatter plot medians by week at Windsor-West with linear regression fit weekends only. Each point has all pixels in a week and error bars represent the 25% to 75% range of those pixels.

31.3: Windsor-West by tempo

Figure 31.3.1: Count by tempo at Windsor-West.

Figure 31.3.2: Mean bias (MB), mean absolute bias (MAB), and root mean squared error (RMSE) by tempo at Windsor-West.

Figure 31.3.3: Mean bias (MBP), mean absolute bias (MABP), and root mean squared error (RMSEP) as percents by tempo at Windsor-West. Percents are normalized by the reference mean.