Datastream : CO2FLX25M

CO2 Flux Data: 25m samples

Active Dates
2015.07.22 - 2017.02.24

Measurement Categories
Atmospheric State, Surface Properties

Originating Instrument
Carbon Dioxide Flux Measurement Systems (CO2FLX)

Measurements

Only measurements considered scientifically relevant are shown below by default.

Show all measurements

Measurement Units Variable
Density of ambient air kg/m^3 air_density ( time )
Specific head at constant pressure of ambient air J/kg/K air_heat_capacity ( time )
Molar volume of ambient air m^3/mol air_molar_volume ( time )
Mean pressure of ambient air, either calculated from high frequency air pressure readings or estimated from on site altitude (barometric pressure Pa air_pressure ( time )
Mean temperature of ambient air, either calculated from high frequency air temperature readings, or estimated from sonic temperature K air_temperature ( time )
Altitude above mean sea level m alt
Base time in Epoch seconds since 1970-1-1 0:00:00 0:00 base_time
Sensible heat flux to latent heat flux ratio unitless bowen_ratio ( time )
Ambient dew point temperature K dew_point_temperature ( time )
Rotated u wind component (mean wind speed) m/s eastward_wind ( time )
Number of spikes detected and eliminated for eastward wind count eastward_wind_spikes ( time )
Wind component along the u anemometer axis m/s eastward_wind_unrotated ( time )
Variance of eastward wind m^2/s^2 eastward_wind_variance ( time )
Friction velocity m/s friction_velocity ( time )
North latitude degree_N lat
East longitude degree_E lon
Maximum instantaneous wind speed m/s max_wind_speed ( time )
Corrected momentum flux kg/m/s^2 momentum_flux ( time )
Spectral correction factor for momentum flux unitless momentum_flux_spectral_correction_factor ( time )
Uncorrected momentum flux kg/m/s^2 momentum_flux_uncorrected ( time )
Monin-Obukov length m monin_obukov_length ( time )
Monin-Obukov stability parameter unitless monin_obukov_stability_parameter ( time )
Rotated v wind component m/s northward_wind ( time )
Number of spikes detected and eliminated for northward wind count northward_wind_spikes ( time )
Wind component along the v anemometer axis m/s northward_wind_unrotated ( time )
Variance of northward wind m^2/s^2 northward_wind_variance ( time )
Second rotation angle degree pitch ( time )
Quality check results on field: Corrected momentum flux unitless qc_momentum_flux ( time )
Quality check results on field: Corrected sensible heat flux unitless qc_sensible_heat_flux ( time )
Random error for momentum flux kg/m/s^2 random_error_momentum_flux ( time )
Random error for sensible heat flux W/m^2 random_error_sensible_heat_flux ( time )
Scaling temperature K scaling_temperature ( time )
Covariance between vertical_wind and variable scaling_temperature m/K/s scaling_temperature_covariance ( time )
Number of spikes detected and eliminated for variable scaling temperature count scaling_temperature_spikes ( time )
Variance of scaling temperature K^2 scaling_temperature_variance ( time )
Corrected sensible heat flux W/m^2 sensible_heat_flux ( time )
Spectral correction factor for sensible heat flux unitless sensible_heat_flux_spectral_correction_factor ( time )
Uncorrected sensible heat flux W/m^2 sensible_heat_flux_uncorrected ( time )
Mean temperature of ambient air as measured by the anemometer K sonic_temperature ( time )
Number of spikes detected and eliminated for variable sonic temperature count sonic_temperature_spikes ( time )
Time offset from midnight time ( time )
Time cell bounds time_bounds ( time, bound )
Time offset from base_time time_offset ( time )
Turbulent kinetic energy m^2/s^2 turbulent_kinetic_energy ( time )
Rotated w wind component m/s vertical_wind ( time )
Number of spikes detected and eliminated for upward wind count vertical_wind_spikes ( time )
Wind component along the w anemometer axis m/s vertical_wind_unrotated ( time )
Variance of vertical wind m^2/s^2 vertical_wind_variance ( time )
Direction from which the wind blows, with respect to Geographic or Magnetic north degree wind_direction ( time )
Mean wind speed m/s wind_speed ( time )
First rotation angle degree yaw ( time )

Locations

Southern Great Plains
SGPC1 Browse DataCentral Facility, Lamont, OK

Contact(s)

Dave Billesbach
University of Nebraska, Lincoln
associate
(402) 472-7961
dbillesbach1@unl.edu

Stephen Chan
Lawrence Berkeley National Laboratory
associate
510 486 4194
swchan@lbl.gov

Sebastien Biraud
Lawrence Berkeley National Laboratory
510-486-6084
SCBiraud@lbl.gov