# GEOMS-TE-MWR-002-HNO3

## Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of `GEOMS-TE-MWR-002-HNO3` 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
sensor_latitude | double |  | [degree_north] | latitude of the sensor
sensor_longitude | double |  | [degree_east] | longitude of the sensor
sensor_altitude | double |  | [m] | altitude of the sensor
datetime | double | {time} | [days since 2000-01-01] | time of the measurement
viewing_azimuth_angle | double | {time} | [degree] | viewing azimuth angle
viewing_zenith_angle | double | {time} | [degree] | mean viewing zenith angle
solar_zenith_angle | double | {time} | [degree] | mean solar zenith angle
datetime_start | double | {time} | [days since 2000-01-01] | start time of the measurement
datetime_stop | double | {time} | [days since 2000-01-01] | stop time of the measurement
altitude | double | {vertical} | [m] | altitude
pressure | double | {time, vertical} | [hPa] | independent pressure profile
temperature | double | {time, vertical} | [K] | independent temperature profile
HNO3_volume_mixing_ratio | double | {time, vertical} | [ppmv] | HNO3 volume mixing ratio
HNO3_volume_mixing_ratio_uncertainty_random | double | {time, vertical} | [ppmv] | random standard deviation of the HNO3 volume mixing ratio
HNO3_volume_mixing_ratio_uncertainty_systematic | double | {time, vertical} | [ppmv] | systematic standard deviation of the HNO3 volume mixing ratio
HNO3_volume_mixing_ratio_apriori | double | {time, vertical} | [ppmv] | a priori HNO3 volume mixing ratio
HNO3_volume_mixing_ratio_avk | double | {time, vertical, vertical} | [] | averaging kernel for the HNO3 volume mixing ratio
H2O_column_number_density | double | {time} | [molec/cm2] | derived integrated water vapor partial column from retrieval
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
sensor_latitude | path | /LATITUDE.INSTRUMENT
sensor_longitude | path | /LONGITUDE.INSTRUMENT
sensor_altitude | path | /ALTITUDE.INSTRUMENT
datetime | path | /DATETIME
viewing_azimuth_angle | path | /ANGLE.VIEW_AZIMUTH
viewing_zenith_angle | path | /ANGLE.VIEW_ZENITH_MEAN
solar_zenith_angle | path | /ANGLE.SOLAR_ZENITH_MEAN
datetime_start | path | /DATETIME.START
datetime_stop | path | /DATETIME.STOP
altitude | path | /ALTITUDE
pressure | path | /PRESSURE_INDEPENDENT
temperature | path | /TEMPERATURE_INDEPENDENT
HNO3_volume_mixing_ratio | path | /HNO3.MIXING.RATIO.VOLUME_EMISSION
HNO3_volume_mixing_ratio_uncertainty_random | path | /HNO3.MIXING.RATIO.VOLUME_EMISSION_UNCERTAINTY.RANDOM.STANDARD
HNO3_volume_mixing_ratio_uncertainty_systematic | path | /HNO3.MIXING.RATIO.VOLUME_EMISSION_UNCERTAINTY.SYSTEMATIC.STANDARD
HNO3_volume_mixing_ratio_apriori | path | /HNO3.MIXING.RATIO.VOLUME_EMISSION_APRIORI
HNO3_volume_mixing_ratio_avk | path | /HNO3.MIXING.RATIO.VOLUME_EMISSION_AVK
H2O_column_number_density | available | optional
condition | variable is available
path | /H2O.COLUMN_DERIVED