OCO_OCO2_LtCO2
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of OCO_OCO2_LtCO2 data.
| field name | type | dimensions | unit | description | 
|---|---|---|---|---|
| datetime | double | {time} | [seconds since 1970-01-01] | time of the measurement | 
| latitude | double | {time} | [degree_north] | center latitude of the measurement | 
| longitude | double | {time} | [degree_east] | center longitude of the measurement | 
| latitude_bounds | double | {time, 4} | [degree_north] | corner latitudes of the measurement | 
| longitude_bounds | double | {time, 4} | [degree_east] | corner longitudes of the measurement | 
| surface_altitude | double | {time} | [m] | surface altitude | 
| surface_pressure | double | {time} | [hPa] | retrieved surface pressure | 
| pressure | double | {time, vertical} | [hPa] | pressure levels | 
| sensor_azimuth_angle | double | {time} | [degree] | sensor azimuth angle | 
| sensor_zenith_angle | double | {time} | [degree] | sensor zenith angle | 
| solar_azimuth_angle | double | {time} | [degree] | solar azimuth angle | 
| solar_zenith_angle | double | {time} | [degree] | solar zenith angle | 
| CO2_column_volume_mixing_ratio_dry_air | double | {time} | [ppmv] | Column-averaged dry-air mole fraction of CO2 (includes bias correction) | 
| CO2_column_volume_mixing_ratio_dry_air_uncertainty | double | {time} | [ppmv] | XCO2 posterior error | 
| CO2_column_volume_mixing_ratio_dry_air_validity | int8 | {time} | XCO2 simple quality bitflag | |
| CO2_column_volume_mixing_ratio_dry_air_apriori | double | {time} | [ppmv] | XCO2 a-priori | 
| CO2_column_volume_mixing_ratio_dry_avk | double | {time, vertical} | [ppmv/ppmv] | XCO2 column averaging kernel | 
| CO2_volume_mixing_ratio_dry_air_apriori | double | {time, vertical} | [ppmv] | CO2 a-priori profile | 
| validity | int8 | {time} | XCO2 quality flag | |
| index | int32 | {time} | zero-based index of the sample within the source product | 
Mapping description
The table below details where and how each variable was retrieved from the input product.
| field name | mapping description | |
|---|---|---|
| datetime | path | /time[] | 
| latitude | path | /latitude[] | 
| longitude | path | /longitude[] | 
| latitude_bounds | path | /vertex_latitude[] | 
| longitude_bounds | path | /vertex_longitude[] | 
| surface_altitude | path | /Sounding/altitude[] | 
| surface_pressure | path | /Retrieval/psurf[] | 
| pressure | path | /pressure_levels[] | 
| description | the vertical grid is inverted to make it ascending | |
| sensor_azimuth_angle | path | /Sounding/sensor_azimuth_angle[] | 
| sensor_zenith_angle | path | /sensor_zenith_angle[] | 
| solar_azimuth_angle | path | /Sounding/solar_azimuth_angle[] | 
| solar_zenith_angle | path | /solar_zenith_angle[] | 
| CO2_column_volume_mixing_ratio_dry_air | path | /xco2[] | 
| CO2_column_volume_mixing_ratio_dry_air_uncertainty | path | /xco2_uncertainty[] | 
| CO2_column_volume_mixing_ratio_dry_air_validity | available | optional | 
| condition | version>9 | |
| path | /xco2_qf_simple_bitflag[] | |
| CO2_column_volume_mixing_ratio_dry_air_apriori | path | /xco2_apriori[] | 
| CO2_column_volume_mixing_ratio_dry_avk | path | /xco2_averaging_kernel[] | 
| description | the vertical grid is inverted to make it ascending | |
| CO2_volume_mixing_ratio_dry_air_apriori | path | /co2_profile_apriori[] | 
| description | the vertical grid is inverted to make it ascending | |
| validity | path | /xco2_quality_flag[] |