GEOMS-TE-UVVIS-DOAS-OFFAXIS-AEROSOL-006 — HARP 1.16 documentation

# GEOMS-TE-UVVIS-DOAS-OFFAXIS-AEROSOL-006

## Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of `GEOMS-TE-UVVIS-DOAS-OFFAXIS-AEROSOL-006` 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
datetime | double | {time} | [days since 2000-01-01] | mean time of the measurement
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
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 relative to the location site
wavelength | double | {spectral} | [nm] | wavelength at which aerosol is retrieved
altitude | double | {time, vertical} | [km] | effective retrieval altitude
pressure | double | {time, vertical} | [hPa] | independent pressure profile
temperature | double | {time, vertical} | [K] | independent temperature profile
altitude_bounds | double | {time, vertical, 2} | [km] | lower and upper boundaries of the height layers
solar_zenith_angle | double | {time} | [degree] | solar astronomical zenith angle
solar_azimuth_angle | double | {time} | [degree] | solar azimuth angle
viewing_azimuth_angle | double | {time} | [degree] | viewing azimuth angle of the sensor
viewing_zenith_angle | double | {time} | [degree] | viewing zenith angle of the sensor
latitude | double | {time, vertical} | [degree_north] | latitude of effective air mass at each altitude
longitude | double | {time, vertical} | [degree_east] | longitude of effective air mass at each altitude
cloud_type | int8 | {time} |  | cloud condition; enumeration values: clear_sky (0), thin_clouds (1), thick_clouds (2), broken_clouds (3)
aerosol_extinction_coefficient | double | {time, spectral, vertical} | [km^-1] | aerosol extinction coefficient
aerosol_extinction_coefficient_covariance | double | {time, spectral, vertical, vertical} | [km^-2] | covariance of the aerosol extinction coefficient
aerosol_extinction_coefficient_uncertainty_random | double | {time, spectral, vertical} | [km^-1] | random uncertainty of the aerosol extinction coefficient
aerosol_extinction_coefficient_uncertainty_systematic | double | {time, spectral, vertical} | [km^-1] | systematic uncertainty of the aerosol extinction coefficient
aerosol_extinction_coefficient_apriori | double | {time, spectral, vertical} | [km^-1] | a priori aerosol extinction coefficient
aerosol_extinction_coefficient_avk | double | {time, spectral, vertical, vertical} | [] | averaging kernel of the aerosol extinction coefficient
tropospheric_aerosol_optical_depth | double | {time, spectral} | [] | tropospheric aerosol optical depth
tropospheric_aerosol_optical_depth_uncertainty_random | double | {time, spectral} | [] | random uncertainty of the tropospheric aerosol optical depth
tropospheric_aerosol_optical_depth_uncertainty_systematic | double | {time, spectral} | [] | systematic uncertainty of the tropospheric aerosol optical depth
tropospheric_aerosol_optical_depth_apriori | double | {time, spectral} | [] | a priori tropospheric aerosol optical depth
tropospheric_aerosol_optical_depth_avk | double | {time, spectral, vertical} | [] | averaging kernel of the tropospheric aerosol optical depth
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
datetime | path | /DATETIME
datetime_start | path | /DATETIME.START
datetime_stop | path | /DATETIME.STOP
sensor_latitude | path | /LATITUDE.INSTRUMENT
sensor_longitude | path | /LONGITUDE.INSTRUMENT
sensor_altitude | path | /ALTITUDE.INSTRUMENT
wavelength | path | /WAVELENGTH
altitude | path | /ALTITUDE
pressure | path | /PRESSURE_INDEPENDENT
temperature | path | /TEMPERATURE_INDEPENDENT
altitude_bounds | path | /ALTITUDE.BOUNDARIES
solar_zenith_angle | path | /ANGLE.SOLAR_ZENITH.ASTRONOMICAL
solar_azimuth_angle | path | /ANGLE.SOLAR_AZIMUTH
viewing_azimuth_angle | path | /ANGLE.VIEW_AZIMUTH
viewing_zenith_angle | path | /ANGLE.VIEW_ZENITH
latitude | available | optional
path | /LATITUDE
longitude | available | optional
path | /LONGITUDE
cloud_type | path | /CLOUD.CONDITIONS
description | “clear-sky”: clear_sky (0); “thin clouds”: thin_clouds (1); “thick clouds”: thick_clouds (2); “broken clouds”: broken_clouds (3); “”: (-1)
aerosol_extinction_coefficient | path | /AEROSOL.EXTINCTION.COEFFICIENT_SCATTER.SOLAR.OFFAXIS
aerosol_extinction_coefficient_covariance | path | /AEROSOL.EXTINCTION.COEFFICIENT_SCATTER.SOLAR.OFFAXIS_UNCERTAINTY.RANDOM.COVARIANCE
aerosol_extinction_coefficient_uncertainty_random | path | /AEROSOL.EXTINCTION.COEFFICIENT_SCATTER.SOLAR.OFFAXIS_UNCERTAINTY.RANDOM.COVARIANCE
description | the uncertainty is the square root of the trace of the covariance
aerosol_extinction_coefficient_uncertainty_systematic | path | /AEROSOL.EXTINCTION.COEFFICIENT_SCATTER.SOLAR.OFFAXIS_UNCERTAINTY.SYSTEMATIC.COVARIANCE
description | the uncertainty is the square root of the trace of the covariance
aerosol_extinction_coefficient_apriori | path | /AEROSOL.EXTINCTION.COEFFICIENT_SCATTER.SOLAR.OFFAXIS_APRIORI
aerosol_extinction_coefficient_avk | path | /AEROSOL.EXTINCTION.COEFFICIENT_SCATTER.SOLAR.OFFAXIS_AVK
tropospheric_aerosol_optical_depth | path | /AEROSOL.OPTICAL.DEPTH.TROPOSPHERIC_SCATTER.SOLAR.OFFAXIS
tropospheric_aerosol_optical_depth_uncertainty_random | path | /AEROSOL.OPTICAL.DEPTH.TROPOSPHERIC_SCATTER.SOLAR.OFFAXIS_UNCERTAINTY.RANDOM.STANDARD
tropospheric_aerosol_optical_depth_uncertainty_systematic | path | /AEROSOL.OPTICAL.DEPTH.TROPOSPHERIC_SCATTER.SOLAR.OFFAXIS_UNCERTAINTY.SYSTEMATIC.STANDARD
tropospheric_aerosol_optical_depth_apriori | path | /AEROSOL.OPTICAL.DEPTH.TROPOSPHERIC_SCATTER.SOLAR.OFFAXIS_APRIORI
tropospheric_aerosol_optical_depth_avk | path | /AEROSOL.OPTICAL.DEPTH.TROPOSPHERIC_SCATTER.SOLAR.OFFAXIS_AVK