S5P_L2_AER_LH

Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of S5P_L2_AER_LH 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
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
aerosol_height float {time} [m] altitude of center of aerosol layer
aerosol_height_uncertainty float {time} [m] uncertainty of altitude of center of aerosol layer
aerosol_height_validity int8 {time}   continuous quality descriptor, varying between 0 (no data) and 100 (full quality data)
aerosol_pressure float {time} [Pa] pressure at center of aerosol layer
aerosol_pressure_uncertainty float {time} [Pa] uncertainty of pressure at center of aerosol layer
aerosol_optical_depth float {time} [] aerosol optical thickness
aerosol_optical_depth_uncertainty float {time} [] uncertainty of the aerosol optical thickness
surface_albedo float {time} [] surface albedo
cloud_fraction float {time} [] cloud fraction from the cloud product
absorbing_aerosol_index float {time} [] aerosol index
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_AER_LH products.

option name legal values description
aerosol_pressure unclipped ingest the aerosol_mid_pressure that is clipped to the surface pressure (default) or the unclipped variant (aerosol_pressure=unclipped)

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); the time associated with a scanline is repeated for each pixel in the scanline
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[]
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 >= 01.03.00
path /PRODUCT/SUPPORT_DATA/INPUT_DATA/northward_wind[]
surface_zonal_wind_velocity available optional
condition processor version >= 01.03.00
path /PRODUCT/SUPPORT_DATA/INPUT_DATA/eastward_wind[]
aerosol_height path /PRODUCT/aerosol_mid_height[]
aerosol_height_uncertainty path /PRODUCT/aerosol_mid_height_precision[]
aerosol_height_validity path /PRODUCT/qa_value
aerosol_pressure available optional
condition aerosol_pressure unset
path /PRODUCT/aerosol_mid_pressure[]
condition aerosol_pressure=unclipped and processor version >= 02.00.00
path /PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/aerosol_mid_pressure_not_clipped[]
aerosol_pressure_uncertainty path /PRODUCT/aerosol_mid_pressure_precision[]
aerosol_optical_depth path /PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/aerosol_optical_thickness[]
aerosol_optical_depth_uncertainty path /PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/aerosol_optical_thickness_precision[]
surface_albedo available optional
condition processor version >= 01.03.00
path /PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/surface_albedo[]
cloud_fraction available optional
condition processor version >= 01.03.00
path /PRODUCT/SUPPORT_DATA/INPUT_DATA/cloud_fraction[]
absorbing_aerosol_index path /PRODUCT/SUPPORT_DATA/INPUT_DATA/aerosol_index_354_388
snow_ice_type path /PRODUCT/SUPPORT_DATA/DETAILED_RESULTS/snow_ice_flag[]
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[]
description if 1 <= snow_ice_flag <= 100 then snow_ice_flag/100.0 else 0.0