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