S5P_L2_O3

Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of S5P_L2_O3 data.

field name	type	dimensions	unit	description
scan_subindex	int16	{time}		pixel index (0-based) within the scanline
datetime_start	double	{time}	[seconds since 2010-01-01]	start time of the measurement
datetime_length	double		[s]	duration of the measurement
orbit_index	int32			absolute orbit number
validity	int32	{time}		processing quality flag
latitude	float	{time}	[degree_north]	latitude of the ground pixel center (WGS84)
longitude	float	{time}	[degree_east]	longitude of the ground pixel center (WGS84)
latitude_bounds	float	{time, 4}	[degree_north]	latitudes of the ground pixel corners (WGS84)
longitude_bounds	float	{time, 4}	[degree_east]	longitudes of the ground pixel corners (WGS84)
sensor_latitude	float	{time}	[degree_north]	latitude of the geodetic sub-satellite point (WGS84)
sensor_longitude	float	{time}	[degree_east]	longitude of the goedetic sub-satellite point (WGS84)
sensor_altitude	float	{time}	[m]	altitude of the satellite with respect to the geodetic sub-satellite point (WGS84)
solar_zenith_angle	float	{time}	[degree]	zenith angle of the Sun at the ground pixel location (WGS84); angle measured away from the vertical
solar_azimuth_angle	float	{time}	[degree]	azimuth angle of the Sun at the ground pixel location (WGS84); angle measured East-of-North
sensor_zenith_angle	float	{time}	[degree]	zenith angle of the satellite at the ground pixel location (WGS84); angle measured away from the vertical
sensor_azimuth_angle	float	{time}	[degree]	azimuth angle of the satellite at the ground pixel location (WGS84); angle measured East-of-North
pressure_bounds	float	{time, vertical, 2}	[Pa]	pressure bounds per profile layer
O3_column_number_density	float	{time}	[mol/m^2]	O3 column number density
O3_column_number_density_uncertainty	float	{time}	[mol/m^2]	uncertainty of the O3 column number density
O3_column_number_density_validity	int8	{time}		continuous quality descriptor, varying between 0 (no data) and 1 (full quality data)
O3_column_number_density_apriori	float	{time, vertical}	[mol/m^2]	O3 column number density apriori
O3_column_number_density_avk	float	{time, vertical}	[]	averaging kernel for the O3 column number density
O3_column_number_density_amf	float	{time}	[]	O3 column number density total air mass factor
O3_column_number_density_amf_uncertainty	float	{time}	[]	uncertainty of the O3 column number density total air mass factor
O3_slant_column_number_density	float	{time}	[mol/m^2]	O3 ring corrected slant column number density
O3_effective_temperature	float	{time}	[K]	ozone cross section effective temperature
cloud_base_height	float	{time}	[m]	cloud base height calculated using the OCRA/ROCINN CAL model
cloud_base_height_uncertainty	float	{time}	[m]	error of the cloud base height calculated using the OCRA/ROCINN CAL model
cloud_base_pressure	float	{time}	[Pa]	cloud base pressure calculated using the OCRA/ROCINN CAL model
cloud_base_pressure_uncertainty	float	{time}	[Pa]	error of the cloud base pressure calculated using the OCRA/ROCINN CAL model
cloud_fraction	float	{time}	[]	cloud fraction from either the OCRA/ROCINN CAL or CRB model
cloud_fraction_uncertainty	float	{time}	[]	uncertainty of the cloud fraction
cloud_optical_depth	float	{time}	[m]	retrieved cloud optical depth using the OCRA/ROCINN CAL model
cloud_optical_depth_uncertainty	float	{time}	[m]	uncertainty of the retrieved cloud optical depth using the OCRA/ROCINN CAL model
cloud_top_pressure	float	{time}	[Pa]	retrieved atmospheric pressure at the level of cloud top using the OCRA/ROCINN CAL model
cloud_top_pressure_uncertainty	float	{time}	[Pa]	uncertainty of the retrieved atmospheric pressure at the level of cloud top using the OCRA/ROCINN CAL model
cloud_top_height	float	{time}	[m]	retrieved altitude of the cloud top using the OCRA/ROCINN CAL model
cloud_top_height_uncertainty	float	{time}	[m]	uncertainty of the retrieved altitude of the cloud top using the OCRA/ROCINN CAL model
cloud_albedo	float	{time}	[]	albedo of cloud using the OCRA/ROCINN CRB model
cloud_albedo_uncertainty	float	{time}	[]	uncertainty of the albedo of cloud using the OCRA/ROCINN CRB model
cloud_height	float	{time}	[m]	retrieved altitude at the level of cloud using the OCRA/ROCINN CRB model
cloud_height_uncertainty	float	{time}	[m]	error of the retrieved altitude at the level of cloud using the OCRA/ROCINN CRB model
cloud_pressure	float	{time}	[Pa]	retrieved atmospheric pressure at the level of cloud using the OCRA/ROCINN CRB model
cloud_pressure_uncertainty	float	{time}	[Pa]	error of the retrieved atmospheric pressure at the level of cloud using the OCRA/ROCINN CRB model
surface_albedo	float	{time}	[]	surface albedo
surface_altitude	float	{time}	[m]	surface altitude
surface_altitude_uncertainty	float	{time}	[m]	surface altitude precision
surface_pressure	float	{time}	[Pa]	surface pressure
snow_ice_type	int8	{time}		surface snow/ice type; enumeration values: snow_free_land (0), sea_ice (1), permanent_ice (2), snow (3), ocean (4)
sea_ice_fraction	float	{time}	[]	sea-ice concentration (as a fraction)
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
scan_subindex	description	the scanline and pixel dimensions are collapsed into a temporal dimension; the index of the pixel within the scanline is computed as the index on the temporal dimension modulo the number of scanlines
datetime_start	path	/PRODUCT/time, /PRODUCT/delta_time[]
datetime_start	description	time converted from milliseconds since a reference time (given as seconds since 2010-01-01) to seconds since 2010-01-01 (using 86400 seconds per day)
datetime_length	path	/@time_coverage_resolution
datetime_length	description	the measurement length is parsed assuming the ISO 8601 ‘PT%(interval_seconds)fS’ format
orbit_index	path	/@orbit
validity	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/processing_quality_flags[]
validity	description	the uint32 data is cast to int32
latitude	path	/PRODUCT/latitude[]
longitude	path	/PRODUCT/longitude[]
latitude_bounds	path	/PRODUCT/SUPPORT_DATA/GEOLOCATIONS/latitude_bounds[]
longitude_bounds	path	/PRODUCT/SUPPORT_DATA/GEOLOCATIONS/longitude_bounds[]
sensor_latitude	path	/PRODUCT/SUPPORT_DATA/GEOLOCATIONS/satellite_latitude[]
sensor_latitude	description	the satellite latitude associated with a scanline is repeated for each pixel in the scanline
sensor_longitude	path	/PRODUCT/SUPPORT_DATA/GEOLOCATIONS/satellite_longitude[]
sensor_longitude	description	the satellite longitude associated with a scanline is repeated for each pixel in the scanline
sensor_altitude	path	/PRODUCT/SUPPORT_DATA/GEOLOCATIONS/satellite_altitude[]
sensor_altitude	description	the satellite altitude associated with a scanline is repeated for each pixel in the scanline
solar_zenith_angle	path	/PRODUCT/SUPPORT_DATA/GEOLOCATIONS/solar_zenith_angle[]
solar_azimuth_angle	path	/PRODUCT/SUPPORT_DATA/GEOLOCATIONS/solar_azimuth_angle[]
sensor_zenith_angle	path	/PRODUCT/SUPPORT_DATA/GEOLOCATIONS/viewing_zenith_angle[]
sensor_azimuth_angle	path	/PRODUCT/SUPPORT_DATA/GEOLOCATIONS/viewing_azimuth_angle[]
pressure_bounds	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/pressure_grid[]
pressure_bounds	description	derived from pressure per level (layer boundary) by repeating the inner levels; the upper bound of layer k is equal to the lower bound of layer k+1
O3_column_number_density	path	/PRODUCT/ozone_total_vertical_column[]
O3_column_number_density_uncertainty	path	/PRODUCT/ozone_total_vertical_column_precision[]
O3_column_number_density_validity	path	/PRODUCT/qa_value
O3_column_number_density_apriori	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/ozone_profile_apriori[]
O3_column_number_density_avk	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/averaging_kernel[]
O3_column_number_density_amf	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/ozone_total_air_mass_factor[]
O3_column_number_density_amf_uncertainty	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/ozone_total_air_mass_factor_trueness[]
O3_slant_column_number_density	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/ozone_slant_column_ring_corrected[]
O3_effective_temperature	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/ozone_effective_temperature[]
cloud_base_height	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_base_height[]
cloud_base_height_uncertainty	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_base_height_precision[]
cloud_base_pressure	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_base_pressure[]
cloud_base_pressure_uncertainty	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_base_pressure_precision[]
cloud_fraction	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_fraction[]
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_fraction_crb[]
cloud_fraction_uncertainty	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_fraction_precision[]
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_fraction_crb_precision[]
cloud_optical_depth	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_optical_thickness[]
cloud_optical_depth_uncertainty	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_optical_thickness_precision[]
cloud_top_pressure	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_top_pressure[]
cloud_top_pressure_uncertainty	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_top_pressure_precision[]
cloud_top_height	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_top_height[]
cloud_top_height_uncertainty	available	optional
	condition	NRTI
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_top_height_precision[]
cloud_albedo	available	optional
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_albedo_crb[]
cloud_albedo_uncertainty	available	optional
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_albedo_crb_precision[]
cloud_height	available	optional
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_height_crb[]
cloud_height_uncertainty	available	optional
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_height_crb_precision[]
cloud_pressure	available	optional
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_pressure_crb[]
cloud_pressure_uncertainty	available	optional
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_pressure_crb_precision[]
surface_albedo	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/surface_albedo[]
surface_altitude	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/surface_altitude[]
surface_altitude_uncertainty	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/surface_altitude_precision[]
surface_pressure	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/surface_pressure[]
snow_ice_type	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/snow_ice_flag_nise[]
snow_ice_type	description	0: snow_free_land (0), 1-100: sea_ice (1), 101: permanent_ice (2), 103: snow (3), 255: ocean (4), other values map to -1
sea_ice_fraction	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/snow_ice_flag_nise[]
sea_ice_fraction	description	if 1 <= snow_ice_flag <= 100 then snow_ice_flag/100.0 else 0.0