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 100 (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_column_number_density_dfs	float	{time}	[]	degrees of freedom of the O3 column number density
O3_column_number_density_sic	float	{time}	[]	Shannon information content of the O3 column number density
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
scene_albedo	float	{time}	[]	effective scene albedo
scene_pressure	float	{time}	[Pa]	scene pressure
surface_altitude	float	{time}	[m]	surface altitude
surface_altitude_uncertainty	float	{time}	[m]	surface altitude precision
surface_pressure	float	{time}	[Pa]	surface pressure
surface_meridional_wind_velocity	float	{time}	[m/s]	northward wind
surface_zonal_wind_velocity	float	{time}	[m/s]	eastward wind
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

Ingestion options

The table below lists the available ingestion options for S5P_L2_O3 products.

option name	legal values	description
qa_filter	custom	if enabled (qa_filter=custom) then for data generated by L2 processor V1.x the validity will be set to 0 or 100 based on the recommended filtering (see PRF) instead of using the qa_value variable

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[]
	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
	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[]
	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[]
	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[]
	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[]
	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	condition	processor version < 01.01.04
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/pressure_grid[]
	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
	condition	processor version >= 01.01.04
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/pressure_grid[]
	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; if level 0 and level 1 have the same pressure, skip lowest layer and set bounds of highest layer to NaN
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	condition	processor version < 01.01.04
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/ozone_profile_apriori[]
	description	if pressure value at level N is NaN then skip lowest layer and add NaN fill value at the end
	condition	processor version >= 01.01.04
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/ozone_profile_apriori[]
	description	if lowest two levels have equal pressure then skip lowest layer and add NaN fill value at the end
O3_column_number_density_avk	condition	processor version < 01.01.04
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/averaging_kernel[]
	description	if pressure value at level N is NaN then skip lowest layer and add NaN fill value at the end
	condition	processor version >= 01.01.04
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/averaging_kernel[]
	description	if lowest two levels have equal pressure then skip lowest layer and add NaN fill value at the end
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_column_number_density_dfs	available	optional
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/degrees_of_freedom[]
O3_column_number_density_sic	available	optional
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/shannon_information_content[]
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[]
scene_albedo	available	optional
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/effective_albedo[]
scene_pressure	available	optional
	condition	OFFL
	path	/PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/scene_pressure[]
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[]
surface_meridional_wind_velocity	available	optional
	condition	processor version >= 02.00.00
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/northward_wind[]
surface_zonal_wind_velocity	available	optional
	condition	processor version >= 02.00.00
	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/eastward_wind[]
snow_ice_type	path	/PRODUCT/SUPPORT_DATA/INPUT_DATA/snow_ice_flag_nise[]
	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/INPUT_DATA/snow_ice_flag_nise[]
	description	if 1 <= snow_ice_flag <= 100 then snow_ice_flag/100.0 else 0.0