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