ESACCI_GHG_L2_GOSAT
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of ESACCI_GHG_L2_GOSAT data.
| field name | type | dimensions | unit | description | 
|---|---|---|---|---|
| datetime | double | {time} | [seconds since 2000-01-01] | time of the measurement | 
| surface_altitude | double | {time} | [m] | average surface altitude w.r.t. geoid | 
| latitude | double | {time} | [degree_north] | latitude of the ground pixel center | 
| longitude | double | {time} | [degree_east] | longitude of the ground pixel center | 
| sensor_zenith_angle | double | {time} | [degree] | sensor zenith angle | 
| solar_zenith_angle | double | {time} | [degree] | solar zenith angle | 
| CH4_column_volume_mixing_ratio | double | {time} | [ppbv] | CH4 column volume mixing ratio | 
| CH4_column_volume_mixing_ratio_uncertainty | double | {time} | [ppbv] | CH4 column volume mixing ratio uncertainty | 
| CO2_column_volume_mixing_ratio | double | {time} | [ppmv] | CO2 column volume mixing ratio | 
| CO2_column_volume_mixing_ratio_uncertainty | double | {time} | [ppmv] | CO2 column volume mixing ratio uncertainty | 
| 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[] | 
| surface_altitude | condition | data processed by OCFP or OCPR algorithm | 
| path | surface_altitude[] | |
| condition | data processed by SRPR or SRFP algorithm | |
| path | altitude[] | |
| latitude | path | latitude[] | 
| longitude | path | longitude[] | 
| sensor_zenith_angle | path | sensor_zenith_angle[] | 
| solar_zenith_angle | path | solar_zenith_angle[] | 
| CH4_column_volume_mixing_ratio | available | optional | 
| path | xch4[] | |
| CH4_column_volume_mixing_ratio_uncertainty | available | optional | 
| path | xch4_uncertainty[] | |
| CO2_column_volume_mixing_ratio | available | optional | 
| path | xco2[] | |
| CO2_column_volume_mixing_ratio_uncertainty | available | optional | 
| path | xco2_uncertainty[] | |