GEOMS-TE-UVVIS-DOAS-OFFAXIS-AEROSOL-007

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-007 data.

field name	type	dimensions	unit	description
sensor_name	string			name of the sensor
site_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
surface_wind_direction	double	{time}	[degree]	Wind direction at the station using WMO definition (wind from the north is 360; from the east is 90 and so on. No wind (calm) is 0)
surface_wind_speed	double	{time}	[m/s]	Wind speed at the station
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
site_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
surface_wind_direction	available	optional
surface_wind_direction	path	/WIND.DIRECTION.SURFACE_INDEPENDENT
surface_wind_speed	available	optional
surface_wind_speed	path	/WIND.SPEED.SURFACE_INDEPENDENT
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
latitude	path	/LATITUDE
longitude	available	optional
longitude	path	/LONGITUDE
cloud_type	path	/CLOUD.CONDITIONS
cloud_type	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
aerosol_extinction_coefficient_uncertainty_random	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
aerosol_extinction_coefficient_uncertainty_systematic	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