Table Name,HOURLY_GAS
Table Description,2017
Number of Records,2025-08-27
Last Table Update,2020-07-30
File Date,311280
Data Codes Contained in File:
COLUMN_NAME,CODE,DESCRIPTION,VALIDITY
PARAMETER,CO,"CO, Carbon Monoxide, Gas, Trace-Level Gas Analyzers",
PARAMETER,FLOW_23M,Flow Through 23.5 Meter Filter Pack,
PARAMETER,FLOW_2M,Flow Through 2 Meter Filter Pack,
PARAMETER,HNO3,"Nitric Acid, Difference Between NOy and NOy_MINUS, Trace-Level Gas Analyzers",
PARAMETER,NH3,"NH3 Difference, Ammonia, TNx Other than NOy, Gas, Trace-Level Gas Analyzers",
PARAMETER,NO,"NO, Nitrogen Oxide, Gas, Trace-Level Gas Analyzers",
PARAMETER,NO2_TRUE,"NO2 Difference, NOX_TRUE Other Than NO, Photolytic Converter, Trace-Level Gas Analyzers",
PARAMETER,NOX,"Nitrogen Oxides, Gas, Trace-Level Gas Analyzers",
PARAMETER,NOXDIF,"NOx Difference, Nitrogen Oxides Other Than NO, Gas, Trace-Level Gas Analyzers",
PARAMETER,NOX_TRUE,"NOx, Nitrogen Oxides, Photolytic Converter, Gas, Trace-Level Gas Analyzers",
PARAMETER,NOY,"NOy, Reactive Oxidized Nitrogen Compounds, Gas, Trace-Level Gas Analyzers",
PARAMETER,NOYDIF,"NOy Difference, Reactive Nitrogen Compounds Other Than NO, Gas, Trace-Level Gas Analyzers",
PARAMETER,NOY_MINUS,"NOy Minus, NOy Other Than HNO3, HNO3 Is Scrubbed by Na2CO3 Denuder Preceding NOy, Trace-Level Gas ",
PARAMETER,O3_10M,"Ozone Concentration Measured Through 10 Meter Inlet, Gas, Ameriflux",
PARAMETER,O3_14M,"Ozone Concentration Measured Through 14 Meter Inlet, Gas, Ameriflux",
PARAMETER,O3_17M,"Ozone Concentration Measured Through 17 Meter Inlet, Gas, Ameriflux",
PARAMETER,O3_20M,"Ozone Concentration Measured Through 20 Meter Inlet, Gas, Ameriflux",
PARAMETER,O3_23M,"Ozone Concentration Measured Through 23 Meter Inlet, Gas, Ameriflux",
PARAMETER,O3_28M,"Ozone Concentration Measured Through 28 Meter Inlet, Gas, Ameriflux",
PARAMETER,O3_2M,"Ozone Concentration Measured Through 2 Meter Inlet, Gas, Ameriflux",
PARAMETER,O3_6M,"Ozone Concentration Measured Through 6 Meter Inlet, Gas, Ameriflux",
PARAMETER,SO2_GA,"SO2, Sulfur Dioxide, Gas, Trace-Level Gas Analyzers",
PARAMETER,TEMP_23M,Ambient Temperature Measured At 23.5 Meters,
PARAMETER,TEMP_2M,Ambient Temperature Measured At 2 Meters,
PARAMETER,TNX,"Total Reactive Nitrogen, Stainless Converter, Gas, Trace-Level Gas Analyzers",
VALUE_F,<,Missing < 25% of hourly sampling period,Invalid
VALUE_F,A,Anomalous value resulting from local anthropogenic activity,Invalid
VALUE_F,B,Field instrument channel down for >= 25% of hourly sampling period,Valid
VALUE_F,C,Invalid data due to field calibration of instrument,Valid
VALUE_F,D,Field instrument channel down for 25% to 75% of hourly sampling period,Valid
VALUE_F,F,Field instrument power failure,Valid
VALUE_F,I,Invalid reading,Valid
VALUE_F,M,Field data missing,Valid
VALUE_F,N,Sampling time inadequate to calculate hourly average,Valid
VALUE_F,NULL,Valid data,Invalid
VALUE_F,O,Adjusted value,Invalid
VALUE_F,S,Field instrument out of DQO at time of 2nd calibration,Invalid
VALUE_F,U,Concentration below reporting limit for analyzer,Invalid
VALUE_F,Z,< and U apply,Invalid
