30co2flx4mmet
Eddy Correlation CO2 Flux Data: 4 m samples, meteorological data, 30-min stats (30co2flx4mmet)
Browse DataThe Southern Great Plains (SGP) carbon dioxide flux (CO2FLUX) measurement systems provide half-hour average fluxes of CO2, H2O (latent heat), sensible heat, and momentum. The systems use the eddy covariance technique, which computes the fluxes from the vertical wind speed in combination with the concentrations of CO2 and H2O, temperature, and horizontal wind speed, respectively. A 3D sonic anemometer obtains the wind components and the temperature, while an infrared gas analyzer measures CO2 and H2O.
A sub-system also measures half-hour averages of radiation, meteorological, and soil measurements.
Measurements
Barometric pressure, from met system
WPL corrected CO2 flux
Corrected sensible heat flux
WPL corrected latent heat flux
Monin-Obukhov length scale
mean CO2 density
Average of four soil heat flux probes
Average of four lower soil moisture sensors
Mean H2O density
Mean horizontal wind speed
Mean sonic temp
Average of two lower soil temperature sensors
Photosynthetic photon flux density (PAR)
Mean precipitation
Downwelling longwave hemispheric irradiance; t_rad corrected
Net solar radiation (NR-lite); t_rad corrected
Upwelling longwave hemispheric irradiance; t_rad corrected
Upwelling shortwave hemispheric irradiance; t_rad corrected
Mean air temperature (lower level)
WPL corrected CO2 flux
Corrected sensible heat flux
WPL corrected latent heat flux
Monin-Obukhov length scale
mean CO2 density
Average of four soil heat flux probes
Average of four lower soil moisture sensors
Mean H2O density
Mean horizontal wind speed
Mean sonic temp
Average of two lower soil temperature sensors
Photosynthetic photon flux density (PAR)
Mean precipitation
Downwelling longwave hemispheric irradiance; t_rad corrected
Net solar radiation (NR-lite); t_rad corrected
Upwelling longwave hemispheric irradiance; t_rad corrected
Upwelling shortwave hemispheric irradiance; t_rad corrected
Mean air temperature (lower level)
Location
Southern Great Plains
- Latitude: 36.607322
- Longitude: -97.487643
- Publication Date: 2002-12-18
- Start Date: 2002-12-18
- End Date: 2015-07-20
- Last Updated: 2015-09-30
Instrument Mentor
https://www.arm.gov/connect-with-arm/organization/instrument-mentors/list#co2flx
Sebastien Biraud
Lawrence Berkeley National LaboratoryDave Billesbach
University of NebraskaStephen Chan
Lawrence Berkeley National LaboratoryDOI / Citation
http://dx.doi.org/10.5439/1025037
Atmospheric Radiation Measurement (ARM) user facility. 2002, updated hourly. Carbon Dioxide Flux Measurement Systems (30CO2FLX4MMET). 2002-12-18 to 2015-07-20, Southern Great Plains (SGP) Central Facility, Lamont, OK (C1). Compiled by S. Biraud, D. Billesbach and S. Chan. ARM Data Center. Data set accessed at http://dx.doi.org/10.5439/1025037.
Atmospheric Radiation Measurement (ARM) user facility. 2002, updated hourly. Carbon Dioxide Flux Measurement Systems (30CO2FLX4MMET). 2002-12-18 to 2015-07-20, Southern Great Plains (SGP) Central Facility, Lamont, OK (C1). Compiled by S. Biraud, D. Billesbach and S. Chan. ARM Data Center. Data set accessed at http://dx.doi.org/10.5439/1025037.