Datastream : PGS

Precision Gas System (CO2): 2, 4, 25, 60 m

Active Dates
2001.04.11 - 2017.03.27

Measurement Categories
Atmospheric Carbon, Atmospheric State

Originating Instrument
Precision Carbon Dioxide Mixing Ratio System (PGS)


Only measurements considered scientifically relevant are shown below by default.

Show all measurements

Measurement Units Variable
Altitude above mean sea level m alt
Picarro analyzer temperature degC analyzer_temperature ( time )
Base time in Epoch seconds since 1970-1-1 0:00:00 0:00 base_time
Picarro cavity pressure. Torr cavity_pressure ( time )
Picarro cavity temperature. degC cavity_temperature ( time )
Measured CH4 mole fraction ppm ch4 ( time )
CH4 mole fraction with water correction ppm ch4_dry ( time )
Measured CO2 mole fraction ppm co2 ( time )
CO2 mole fraction with water correction ppm co2_dry ( time )
Picarro etalon temperature degC etalon_temperature ( time )
Measured water content % h2o ( time )
North latitude degree_N lat
East longitude degree_E lon
Multi-port valve position indicates state of the rotary valco valve (range 1 to 8) unitless mp_valve_position ( time )
Outlet DAC (digital to analog converter) value for Picarro cavity pressure control unitless outlet_valve ( time )
Value indicating which solenoid valve is currently used unitless solenoid_valve ( time )
Species being analyzed during sample unitless species ( time )
Time offset from midnight time ( time )
Time offset from base_time time_offset ( time )
Picarro warm box temperature degC warm_box_temperature ( time )


Southern Great Plains
SGPC1 Browse DataCentral Facility, Lamont, OK


Ken Reichl
Lawrence Berkeley National Laboratory

Sebastien Biraud
Lawrence Berkeley National Laboratory