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/DETAILED_RESULTS/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/DETAILED_RESULTS/snow_ice_flag_nise[] | 
| description | if 1 <= snow_ice_flag <= 100 then snow_ice_flag/100.0 else 0.0 | |