EARLINET

Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of EARLINET data.

field name	type	dimensions	unit	description
datetime	double	{time}	[seconds since 2000-01-01]	time of measurement
datetime_length	double	{time}	[s]	length of the measurement
latitude	double		[degrees]	latitude
longitude	double		[degrees]	longitude
sensor_altitude	double		[m]	sensor altitude
viewing_zenith_angle	double		[degrees]	viewing zenith angle
wavelength	double		[nm]	wavelength
altitude	double	{vertical}	[m]	altitude
dust_aerosol_top_height	double	{time}	[m]	dust layer top height
backscatter_coefficient	double	{time, vertical}	[1/(m*sr)]	backscatter coefficient
backscatter_coefficient_uncertainty	double	{time, vertical}	[1/(m*sr)]	backscatter coefficient uncertainty
extinction_coefficient	double	{time, vertical}	[1/m]	extinction coefficient
extinction_coefficient_uncertainty	double	{time, vertical}	[1/m]	extinction coefficient uncertainty
H2O_mass_mixing_ratio	double	{time, vertical}	[g/kg]	water mass mixing ratio
H2O_mass_mixing_ratio_uncertainty	double	{time, vertical}	[g/kg]	water mass 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	condition	variable ‘Time’ available
	path	/Time
	description	converted from seconds sinds 1970 to seconds since 2000
	condition	variable ‘Time’ unavailable
	path	/@StartDate, /@StartTime_UT, /@StopTime_UT
	description	convert yymmdd encoded integer value for StartDate to seconds since 2000; convert hhmmss encoded integer values for StartTime_UT and StopTime_UT to time-of-day values; use: date + (start_time + stop_time) / 2
datetime_length	available	optional
	condition	variable ‘Time’ unavailable
	path	/@StartTime_UT, /@StopTime_UT
	description	convert ‘hhmmss’ encoded integer values for StartTime_UT and StopTime_UT to time-of-day values; use: stop_time - start_time
latitude	path	/@Latitude_degrees_north
longitude	path	/@Longitude_degrees_east
sensor_altitude	path	/@Altitude_meter_asl
viewing_zenith_angle	path	/@ZenithAngle_degrees
wavelength	path	/@DetectionWavelength_nm
altitude	path	/Altitude
dust_aerosol_top_height	available	optional
	path	/DustLayerHeight
backscatter_coefficient	available	optional
	path	/Backscatter
backscatter_coefficient_uncertainty	available	optional
	path	/ErrorBackscatter
extinction_coefficient	available	optional
	path	/Extinction
extinction_coefficient_uncertainty	available	optional
	path	/ErrorExtinction
H2O_mass_mixing_ratio	available	optional
	path	/WaterVaporMixingRatio
H2O_mass_mixing_ratio_uncertainty	available	optional
	path	/ErrorWaterVapor