GEOMS-TE-FTIR-001-NH3
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of GEOMS-TE-FTIR-001-NH3 data.
| field name | type | dimensions | unit | description | 
|---|---|---|---|---|
| sensor_name | string | name of the sensor | ||
| location_name | string | name of the site at which the sensor is located | ||
| measurement_mode | string | ‘solar’ or ‘lunar’ measurement | ||
| sensor_latitude | double | [degree_north] | latitude of the sensor | |
| sensor_longitude | double | [degree_east] | longitude of the sensor | |
| sensor_altitude | double | [km] | altitude of the sensor | |
| datetime | double | {time} | [days since 2000-01-01] | time of the measurement | 
| datetime_length | double | {time} | [s] | duration of the measurement | 
| NH3_column_number_density | double | {time} | [molec/m2] | total NH3 vertical column | 
| NH3_column_number_density_apriori | double | {time} | [molec/m2] | a priori total NH3 vertical column | 
| NH3_column_number_density_avk | double | {time, vertical} | [] | averaging kernel for the total NH3 vertical column | 
| NH3_column_number_density_uncertainty_random | double | {time} | [molec/m2] | random uncertainty of the total NH3 vertical column | 
| NH3_column_number_density_uncertainty_systematic | double | {time} | [molec/m2] | systematic uncertainty of the total NH3 vertical column | 
| H2O_column_number_density | double | {time} | [molec/m2] | total H2O vertical column | 
| NH3_volume_mixing_ratio_dry_air | double | {time, vertical} | [ppmv] | NH3 volume mixing ratio | 
| NH3_volume_mixing_ratio_dry_air_apriori | double | {time, vertical} | [ppmv] | a priori NH3 volume mixing ratio | 
| NH3_volume_mixing_ratio_dry_air_avk | double | {time, vertical, vertical} | [] | averaging kernel for the NH3 volume mixing ratio | 
| NH3_volume_mixing_ratio_dry_air_covariance | double | {time, vertical, vertical} | [(ppmv)2] | covariance of the NH3 volume mixing ratio | 
| NH3_volume_mixing_ratio_dry_air_uncertainty_random | double | {time, vertical} | [ppmv] | random uncertainty of the NH3 volume mixing ratio | 
| NH3_volume_mixing_ratio_dry_air_uncertainty_systematic | double | {time, vertical} | [ppmv] | systematic uncertainty of the NH3 volume mixing ratio | 
| H2O_volume_mixing_ratio_dry_air | double | {time, vertical} | [ppmv] | H2O volume mixing ratio | 
| altitude | double | {time, vertical} | [km] | retrieval effective altitude | 
| altitude_bounds | double | {time, vertical, 2} | [km] | lower and upper boundaries of the height layers | 
| pressure | double | {time, vertical} | [hPa] | independent pressure profile | 
| temperature | double | {time, vertical} | [K] | independent temperature profile | 
| surface_pressure | double | {time} | [hPa] | independent surface pressure | 
| surface_temperature | double | {time} | [K] | independent surface temperature | 
| solar_azimuth_angle | double | {time} | [degree] | solar azimuth angle | 
| solar_zenith_angle | double | {time} | [degree] | solar zenith angle | 
| 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 | |
|---|---|---|
| sensor_name | path | /@DATA.SOURCE | 
| location_name | path | /@DATA.LOCATION | 
| measurement_mode | condition | determined from ‘variable mode’ part of variable names | 
| sensor_latitude | path | /LATITUDE.INSTRUMENT | 
| sensor_longitude | path | /LONGITUDE.INSTRUMENT | 
| sensor_altitude | path | /ALTITUDE.INSTRUMENT | 
| datetime | path | /DATETIME | 
| datetime_length | available | optional | 
| path | /INTEGRATION.TIME | |
| NH3_column_number_density | condition | solar measurement | 
| path | /NH3.COLUMN_ABSORPTION.SOLAR | |
| description | unit is converted to molec/m2 | |
| condition | lunar measurement | |
| path | /NH3.COLUMN_ABSORPTION.LUNAR | |
| description | unit is converted to molec/m2 | |
| NH3_column_number_density_apriori | condition | solar measurement | 
| path | /NH3.COLUMN_ABSORPTION.SOLAR_APRIORI | |
| description | unit is converted to molec/m2 | |
| condition | lunar measurement | |
| path | /NH3.COLUMN_ABSORPTION.LUNAR_APRIORI | |
| description | unit is converted to molec/m2 | |
| NH3_column_number_density_avk | condition | solar measurement | 
| path | /NH3.COLUMN_ABSORPTION.SOLAR_AVK | |
| description | the vertical axis is re-ordered from surface to top-of-atmosphere | |
| condition | lunar measurement | |
| path | /NH3.COLUMN_ABSORPTION.LUNAR_AVK | |
| description | the vertical axis is re-ordered from surface to top-of-atmosphere | |
| NH3_column_number_density_uncertainty_random | condition | solar measurement | 
| path | /NH3.COLUMN_ABSORPTION.SOLAR_UNCERTAINTY.RANDOM | |
| description | unit is converted to molec/m2 | |
| condition | lunar measurement | |
| path | /NH3.COLUMN_ABSORPTION.LUNAR_UNCERTAINTY.RANDOM | |
| description | unit is converted to molec/m2 | |
| NH3_column_number_density_uncertainty_systematic | condition | solar measurement | 
| path | /NH3.COLUMN_ABSORPTION.SOLAR_UNCERTAINTY.SYSTEMATIC | |
| description | unit is converted to molec/m2 | |
| condition | lunar measurement | |
| path | /NH3.COLUMN_ABSORPTION.LUNAR_UNCERTAINTY.SYSTEMATIC | |
| description | unit is converted to molec/m2 | |
| H2O_column_number_density | condition | solar measurement | 
| path | /H2O.COLUMN_ABSORPTION.SOLAR | |
| description | unit is converted to molec/m2 | |
| condition | lunar measurement | |
| path | /H2O.COLUMN_ABSORPTION.LUNAR | |
| description | unit is converted to molec/m2 | |
| NH3_volume_mixing_ratio_dry_air | available | optional | 
| condition | solar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.SOLAR | |
| description | unit is converted to ppmv; the vertical axis is re-ordered from surface to top-of-atmosphere | |
| condition | lunar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.LUNAR | |
| description | unit is converted to ppmv; the vertical axis is re-ordered from surface to top-of-atmosphere | |
| NH3_volume_mixing_ratio_dry_air_apriori | available | optional | 
| condition | solar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.SOLAR_APRIORI | |
| description | unit is converted to ppmv; the vertical axis is re-ordered from surface to top-of-atmosphere | |
| condition | lunar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.LUNAR_APRIORI | |
| description | unit is converted to ppmv; the vertical axis is re-ordered from surface to top-of-atmosphere | |
| NH3_volume_mixing_ratio_dry_air_avk | available | optional | 
| condition | solar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.SOLAR_AVK | |
| description | the vertical axis is re-ordered from surface to top-of-atmosphere | |
| condition | lunar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.LUNAR_AVK | |
| description | the vertical axis is re-ordered from surface to top-of-atmosphere | |
| NH3_volume_mixing_ratio_dry_air_covariance | available | optional | 
| condition | solar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.SOLAR_UNCERTAINTY.RANDOM | |
| description | unit is converted to (ppmv)2; the vertical axis is re-ordered from surface to top-of-atmosphere | |
| condition | lunar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.LUNAR_UNCERTAINTY.RANDOM | |
| description | unit is converted to (ppmv)2; the vertical axis is re-ordered from surface to top-of-atmosphere | |
| NH3_volume_mixing_ratio_dry_air_uncertainty_random | available | optional | 
| condition | solar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.SOLAR_UNCERTAINTY.RANDOM | |
| description | the vertical axis is re-ordered from surface to top-of-atmosphere; the uncertainty is the square root of the trace of the covariance; unit is converted to ppmv | |
| condition | lunar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.LUNAR_UNCERTAINTY.RANDOM | |
| description | the vertical axis is re-ordered from surface to top-of-atmosphere; the uncertainty is the square root of the trace of the covariance; unit is converted to ppmv | |
| NH3_volume_mixing_ratio_dry_air_uncertainty_systematic | available | optional | 
| condition | solar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.SOLAR_UNCERTAINTY.SYSTEMATIC | |
| description | the vertical axis is re-ordered from surface to top-of-atmosphere; the uncertainty is the square root of the trace of the covariance; unit is converted to ppmv | |
| condition | lunar measurement | |
| path | /NH3.MIXING.RATIO_ABSORPTION.LUNAR_UNCERTAINTY.SYSTEMATIC | |
| description | the vertical axis is re-ordered from surface to top-of-atmosphere; the uncertainty is the square root of the trace of the covariance; unit is converted to ppmv | |
| H2O_volume_mixing_ratio_dry_air | condition | solar measurement | 
| path | /H2O.MIXING.RATIO_ABSORPTION.SOLAR | |
| description | unit is converted to ppmv; the vertical axis is re-ordered from surface to top-of-atmosphere | |
| condition | lunar measurement | |
| path | /H2O.MIXING.RATIO_ABSORPTION.LUNAR | |
| description | unit is converted to ppmv; the vertical axis is re-ordered from surface to top-of-atmosphere | |
| altitude | path | /ALTITUDE | 
| description | the vertical axis is re-ordered from surface to top-of-atmosphere | |
| altitude_bounds | path | /ALTITUDE.BOUNDS | 
| description | lower and upper boundaries of the height layers | |
| pressure | path | /PRESSURE_INDEPENDENT | 
| description | independent pressure profile | |
| temperature | path | /TEMPERATURE_INDEPENDENT | 
| description | independent temperature profile | |
| surface_pressure | path | /SURFACE.PRESSURE_INDEPENDENT | 
| surface_temperature | path | /SURFACE.TEMPERATURE_INDEPENDENT | 
| solar_azimuth_angle | condition | solar measurement | 
| path | /ANGLE.SOLAR_AZIMUTH | |
| condition | lunar measurement | |
| path | /ANGLE.LUNAR_AZIMUTH | |
| solar_zenith_angle | condition | solar measurement | 
| path | /ANGLE.SOLAR_ZENITH.ASTRONOMICAL | |
| condition | lunar measurement | |
| path | /ANGLE.LUNAR_ZENITH.ASTRONOMICAL | |