Name: Sentinel 5P: Total column ozone (O3) level 2 data
Published: 2021-05-27T12:43:33
Keywords: Sentinel, O3, Ozone, ESA

Dataset

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Sentinel 5P: Total column ozone (O3) level 2 data

Permitted Use: Any

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Latest Data Update: 2025-05-16

Status: Ongoing

Online Status: ONLINE

Publication State: Published

Publication Date: 2021-05-27

Download Stats: last 12 months

Dataset Size: 77.81K Files | 11TB

Abstract

Sentinel 5P total column ozone products contain total ozone, ozone temperature, and error information including averaging kernels. These data products are provided in a 7km x 3.5km resolution.
Ozone (O3) is of crucial importance for the equilibrium of the Earth's atmosphere. In the stratosphere, the ozone layer shields the biosphere from dangerous solar ultraviolet radiation. In the troposphere, it acts as an efficient cleansing agent, but at high concentrations, it also becomes harmful to the health of humans, animals, and vegetation. Ozone is also an important greenhouse-gas contributor to ongoing climate change. Since the discovery of the Antarctic ozone hole in the 1980s and the subsequent Montreal Protocol regulating the production of chlorine-containing ozone-depleting substances, ozone has been routinely monitored from the ground and from space. For TROPOMI/S5P, there are two algorithms that will deliver total ozone: GDP for the near real-time and GODFIT for the offline products. GDP is currently being used for generating the operational total ozone products from GOME, SCIAMACHY and GOME-2; while GODFIT is being used in the ESA CCI and the Copernicus C3S projects.

Citable as: Copernicus; European Space Agency (2021): Sentinel 5P: Total column ozone (O3) level 2 data. NERC EDS Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/887a695bf0b24f5590097a16c42604d6

Cite this dataset

Abbreviation: Not defined

Keywords: Sentinel, O3, Ozone, ESA

Details

Previous Info:	No news update for this record
Previously used record identifiers:	No related previous identifiers.
Access rules:	Public data: access to these data is available to both registered and non-registered users. Use of these data is covered by the following licence(s): https://sentinel.esa.int/documents/247904/690755/Sentinel_Data_Legal_Notice When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:	Data collected and prepared by European Space Agency (ESA). Downloaded from the Collaborative Hub for use by CEDA users.
Data Quality:	See dataset associated documentation
File Format:	These data are provided in netCDF format.

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Instrument/Platform pairings

TROPOspheric Monitoring Instrument (TROPOMI)	Deployed on: Sentinel 5 Precursor

Computation Element: 1

Title	Level 2 Ozone (O3) total column processing algorithm applied to Sentinel 5P TROPOspheric Monitoring Instrument (TROPOMI) raw data
Abstract	This computation involves the Level 2 processing algorithm applied to raw TROPOspheric Monitoring Instrument (TROPOMI) data. The one-step OFFL algorithm (S5P_TO3_GODFIT) comprises a non-linear least-squares inversion based on the direct comparison of simulated and measured backscattered radiances. Simulated radiances are computed (again for a multiple scattering atmosphere) at all nominal wavelengths in the UV fitting window, along with corresponding analytically derived weighting functions for total ozone, albedo and effective temperature. The algorithm also contains closure fitting coefficients and a semi-empirical correction for Ring interference. Although more accurate, the S5P_TO3_GODFIT algorithm involves many more RT simulations than S5P_TO3_DOAS, and is, therefore, slower by an order of magnitude approximately. This is currently the main driver for the selection of S5P_TO3_DOAS for the NRTI product. For more information on the processing of the O3 product please refer to the ATBD document.
Input Description	None
Output Description	None
Software Reference	None

Output Description	None

units: m s-1
standard_name: eastward_wind
var_id: eastward_wind
long_name: Eastward wind from ECMWF at 10 meter height level

units: W m-2
var_id: euv
long_name: Erythemal UV irradiance

var_id: instrument_configuration_identifier
long_name: IcID

var_id: instrument_configuration_version
long_name: IcVersion

units: m s-1
standard_name: northward_wind
var_id: northward_wind
long_name: Northward wind from ECMWF at 10 meter height level

units: 1
var_id: number_of_spectral_points_in_retrieval
long_name: Number of spectral points used in the DOAS retrieval

units: 1
var_id: number_of_spectral_points_in_retrieval
long_name: Number of spectral points used in the retrieval

units: 1
long_name: Processing quality flags
var_id: processing_quality_flags

units: 1
var_id: covariance_matrix_diagonal
long_name: The diagonal entries of the covariance matrix of the GODFIT retrieval

var_id: time_utc
long_name: Time of observation as ISO 8601 date-time string

units: 1
var_id: ground_pixel
long_name: across-track dimension index

units: 1
var_id: scanline
long_name: along-track dimension index

units: mol m-2
var_id: ozone_profile_apriori
long_name: apriori ozone profile

units: mol m-2
var_id: ozone_stratospheric_vertical_column
standard_name: stratosphere_mole_content_of_ozone
long_name: average stratospheric ozone column based on the CCD algorithm

units: mol m-2
var_id: ozone_tropospheric_vertical_column
standard_name: troposphere_mole_content_of_ozone
long_name: average tropospheric ozone column based on CCD algorithm

units: 1
var_id: ozone_tropospheric_mixing_ratio
standard_name: troposphere_mole_fraction_of_ozone_in_air
long_name: average tropospheric ozone mixing ratio based on CCD algorithm

units: 1
var_id: surface_classification
standard_name: TBD
long_name: averaged land-water mask based on the CCD algorithm

units: mol m-2
standard_name: stratosphere_mole_content_of_ozone
var_id: ozone_stratospheric_vertical_column_reference
long_name: averaged stratospheric ozone column in the reference are based on the CCD algorithm

units: 1
standard_name: surface_albedo
var_id: surface_albedo
long_name: averaged surface albedo based on the CCD algorithm

standard_name: atmosphere_mole_content_of_ozone
units: mol m-2
var_id: ozone_total_vertical_column
long_name: averaged total ozone column based on the CCD algorithm

units: 1
var_id: calibration_subwindows_root_mean_square
standard_name: TBA
long_name: calibration rms per subwindow

units: nm
standard_name: TBA
var_id: calibration_subwindows_wavelength
long_name: calibration wavelength center in each subwindow

units: 1
standard_name: cloud_albedo
long_name: cloud albedo from the CRB model
var_id: cloud_albedo_crb

units: 1
standard_name: cloud_albedo_standard_error
long_name: cloud albedo precision from the CRB model
var_id: cloud_albedo_crb_precision

units: m
standard_name: TBD
long_name: cloud radiometric optical centroid height from the CRB model
var_id: cloud_height_crb

units: m
standard_name: TBD
long_name: cloud radiometric optical centroid height precision from the CRB model
var_id: cloud_height_crb_precision

units: Pa
standard_name: TBD
var_id: cloud_pressure_crb
long_name: cloud radiometric optical centroid pressure from the CRB model

units: Pa
standard_name: TBD
var_id: cloud_pressure_crb_precision
long_name: cloud radiometric optical centroid pressure precision from the CRB model

units: 1
standard_name: TBA
var_id: calibration_polynomial_coefficients
long_name: computed coefficients of the polynomial function

units: 1
var_id: qa_value
long_name: data quality value

units: 1
var_id: qa_value
long_name: data quality value for the CCD algorithm

units: 1
var_id: degrees_of_polynomial_shift
long_name: degrees_of_polynomial_shift dimension index

units: 1
var_id: fitted_root_mean_square
long_name: doas fit root mean square residual

units: 1
standard_name: TBD
long_name: effective radiometric cloud fraction from the CRB model
var_id: cloud_fraction_crb

units: 1
standard_name: TBD
long_name: effective radiometric cloud fraction precision from the CRB model
var_id: cloud_fraction_crb_precision

units: 1
var_id: effective_albedo
long_name: effective scene albedo

units: Pa
var_id: scene_pressure
long_name: effective scene pressure computed from surface and cloud pressure

units: W m-2
var_id: euv

units: 1
var_id: condition_number
long_name: final condition number after the tikhonov inversion

units: 1
var_id: degrees_of_freedom
long_name: final degrees of freedom after the tikhonov inversion

units: 1
var_id: regularization_parameter
long_name: final regularization parameter after the tikhonov inversion

var_id: fitted_state_vector
units: various
long_name: fitted parameters in the total ozone retrieval

units: 1
var_id: convergence_flag
long_name: flag signaling the convergence of the o3 algorithm

units: 1
var_id: satellite_orbit_phase
long_name: fractional satellite orbit phase

units: 1
long_name: geolocation flags
var_id: geolocation_flags

units: mol m-2
var_id: ozone_ghost_column
long_name: ghost column

units: 1
long_name: ground pixel quality flag
var_id: geolocation_flags

units: 1
standard_name: TBD
var_id: ozone_tropospheric_vertical_column_histogram
long_name: histogram of tropospheric ozone columns

units: 1
standard_name: TBD
var_id: ozone_upper_troposheric_mixing_ratio_histogram
long_name: histogram of upper tropospheric ozone mixing ratios

units: 1
var_id: histogram_axis

units: 1
var_id: histogram_axis_tropospheric_ozone

units: 1
var_id: histogram_axis_upper_tropospheric_ozone

units: nm
standard_name: TBA
var_id: calibration_subwindows_shift
long_name: irradiance wavelengths shift fitted values per subwindow

units: 1
standard_name: TBA
var_id: calibration_subwindows_squeeze
long_name: irradiance wavelengths squeeze fitted values per subwindow

units: 1
var_id: surface_classification
long_name: land-water mask

units: degrees_north
var_id: latitude_bounds

units: 1
var_id: layer
long_name: layer dimension index

units: 1
var_id: level
long_name: level dimension index

units: degrees_east
var_id: longitude_bounds

units: Pa
standard_name: TBD
var_id: cloud_top_pressure_max
long_name: maximum cloud top pressure

units: Pa
standard_name: TBD
var_id: cloud_top_pressure_min
long_name: minimum cloud top pressure minimum based on the CSA algorithm

units: 1
var_id: number_of_observations_ozone_stratospheric_vertical_column
standard_name: stratosphere_mole_content_of_ozone number_of_observations
long_name: number of data averaged for stratospheric ozone column based on the CCD algorithm

units: 1
standard_name: TBD
var_id: number_of_observations_ozone_stratospheric_vertical_column_reference
long_name: number of data averaged for stratospheric reference ozone column based on the CCD algorithm

units: 1
var_id: number_of_observations_ozone_total_column
standard_name: atmosphere_mole_content_of_ozone number_of_observations
long_name: number of data averaged for total ozone column based on the CCD algorithm

units: 1
var_id: number_of_observations_ozone_tropospheric_vertical_column
standard_name: troposphere_mole_content_of_ozone number_of_observations
long_name: number of data averaged for tropospheric ozone column based on the CCD algorithm

units: 1
standard_name: TBD
var_id: number_of_skipped_observations_ozone_upper_tropospheric_mixing_ratio
long_name: number of data skipped in the upper tropospheric mixing ratio retrieval based on the CSA algorithm

units: 1
standard_name: TBD
var_id: number_of_observations_ozone_upper_tropospheric_mixing_ratio
long_name: number of data used in the upper tropospheric mixing ratio retrieval

units: 1
var_id: number_of_iterations_ozone_upper_tropospheric_mixing_ratio
long_name: number of iterations in the upper tropospheric mixing ratio retrieval based on the CSA algorithm

units: 1
var_id: number_of_iterations_vertical_column
long_name: number of vcd iterations

units: 1
var_id: number_fitting_parameter
long_name: number_fitting_parameter dimension index

units: 1
var_id: number_of_calibrations
long_name: number_of_calibrations dimension index

units: 1
var_id: number_of_subwindows
long_name: number_of_subwindows dimension index

units: milliseconds
var_id: delta_time
long_name: offset from reference start time of measurement

units: 1
var_id: averaging_kernel
long_name: ozone averaging kernel

units: K
var_id: ozone_effective_temperature
long_name: ozone cross section effective temperature

var_id: ozone_total_column_histogram

var_id: ozone_total_column_pdf

units: 1
var_id: pdf_axis

units: 1
var_id: corner
long_name: pixel corner index

units: Pa
standard_name: atmosphere_hybrid_sigma_pressure_coordinate
var_id: pressure_grid
long_name: pressure grid

units: 1
var_id: ozone_stratospheric_vertical_column_reference_flag
standard_name: stratosphere_mole_content_of_ozone status_flag
long_name: quality flag of stratospheric ozone column in the reference area based on the CCD algorithm

units: 1
var_id: ozone_upper_tropospheric_mixing_ratio_flag
standard_name: troposphere_mole_fraction_of_ozone_in_air status_flag
long_name: quality flag to upper tropospheric mixing ratio based on CSA algorithm

units: 1
var_id: ring_scale_factor
long_name: ring correction factor

units: m
var_id: satellite_altitude
long_name: satellite altitude

units: degrees_east
var_id: satellite_longitude
long_name: satellite_longitude

units: 1
var_id: scaled_small_pixel_variance
long_name: scaled small pixel variance

units: 1
var_id: sea_ice_cover
long_name: sea-ice-cover

units: 1
var_id: shannon_information_content
long_name: shannon information content

units: 1
var_id: smoothing_error
long_name: smoothing error

units: 1
var_id: snow_cover
long_name: snow-cover

units: 1
long_name: snow-ice mask
var_id: snow_ice_flag_nise

units: degree
standard_name: solar_azimuth_angle
long_name: solar azimuth angle
var_id: solar_azimuth_angle

units: degree
long_name: solar zenith angle
var_id: solar_zenith_angle
standard_name: solar_zenith_angle

units: mol m-2
var_id: ozone_stratospheric_vertical_column_precision
standard_name: stratosphere_mole_content_of_ozone error
long_name: standard deviation of stratospheric ozone column based on the CCD algorithm

units: mol m-2
var_id: ozone_stratospheric_vertical_column_reference_precision
standard_name: stratosphere_mole_content_of_ozone standard_error
long_name: standard deviation of stratospheric ozone column in the reference area based on the CCD algorithm

standard_name: atmosphere_mole_content_of_ozone standard_error
units: mol m-2
var_id: ozone_total_vertical_column_precision
long_name: standard deviation of total ozone column based on the CCD algorithm

units: mol m-2
var_id: ozone_tropospheric_vertical_column_precision
standard_name: troposphere_mole_content_of_ozone standard_error
long_name: standard deviation of tropospheric ozone column based on CCD algorithm

units: 1
var_id: ozone_tropospheric_mixing_ratio_precision
standard_name: troposphere_mole_fraction_of_ozone_in_air_standard_error
long_name: standard deviation of tropospheric ozone mixing ratio based on CCD algorithm

units: 1
standard_name: troposphere_mole_fraction_of_ozone_in_air_standard_error
var_id: ozone_upper_tropospheric_mixing_ratio_precision
long_name: standard deviation of upper tropospheric ozone mixing ratio based on CSA algorithm

units: degrees_north
var_id: satellite_latitude
long_name: sub satellite latitude

units: 1
standard_name: surface_albedo
long_name: surface albedo
var_id: surface_albedo

units: 1
standard_name: surface_albedo
var_id: surface_albedo
long_name: surface albedo from daily G3_LER

units: m
standard_name: surface_altitude
var_id: surface_altitude
long_name: surface altitude

units: m
standard_name: surface_altitude
var_id: surface_altitude
long_name: surface altitude based on the CCD algorithm

units: m
var_id: surface_altitude_precision
standard_name: surface_altitude standard_error
long_name: surface altitude precision

units: Pa
standard_name: surface_air_pressure
long_name: surface_air_pressure
var_id: surface_pressure

units: K
var_id: surface_temperature
standard_name: surface_air_temperature
long_name: surface_air_temperature

standard_name: atmosphere_mole_content_of_ozone
units: mol m-2
var_id: ozone_total_vertical_column
long_name: total ozone column

units: mol m-2
var_id: ozone_total_vertical_column_precision
standard_name: atmosphere_mole_content_of_ozone error
long_name: total ozone column random error

units: 1
standard_name: troposphere_mole_fraction_of_ozone_in_air
var_id: ozone_upper_tropospheric_mixing_ratio
long_name: upper tropospheric ozone mixing ratio based on CSA algorithm

units: 1
var_id: vertices
long_name: vertices dimension index

units: degree
standard_name: viewing_azimuth_angle
long_name: viewing azimuth angle
var_id: viewing_azimuth_angle

units: degree
long_name: viewing zenith angle
standard_name: viewing_zenith_angle
var_id: viewing_zenith_angle

Co-ordinate Variables

units: degrees_north
standard_name: latitude
var_id: latitude_csa
long_name: latitude center for CSA data

units: degrees_east
standard_name: longitude
var_id: longitude_csa
long_name: longitude center for CSA data

units: degrees_north
standard_name: latitude
var_id: latitude
long_name: pixel center latitude

units: degrees_north
standard_name: latitude
var_id: latitude_ccd
long_name: pixel center latitude for CCD data

units: degrees_east
standard_name: longitude
var_id: longitude
long_name: pixel center longitude

units: degrees_east
standard_name: longitude
var_id: longitude_ccd
long_name: pixel center longitude for CCD data

standard_name: time
var_id: time
units: seconds
long_name: reference time for the measurements

standard_name: time
var_id: time
units: seconds
long_name: time of the measurements

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Coverage

Temporal Range

Start time:

2018-06-27T00:00:00

End time:

Ongoing

Geographic Extent

	90.0000°
-180.0000°		180.0000°
	-90.0000°

Dataset

Sentinel 5P: Total column ozone (O3) level 2 data

Abstract

Details

Related Documents

Process overview

Instrument/Platform pairings

Computation Element: 1

Co-ordinate Variables

Temporal Range

2018-06-27T00:00:00

Ongoing

Geographic Extent

90.0000°

-180.0000°

180.0000°

-90.0000°

Authors (2)

Publishers (1)

Funders (2)

Principal Investigators (1)