Dataset
ESA Precursors for Aerosols and Ozone Climate Change Initiative (Precursors_cci): daily and monthly L3 SO2 from OMI, version 1.0
Abstract
The Sulfur Dioxide (SO2) Climate Data Record (CDR) product is a Level 3 SO2 product developed by using satellite data from the Ozone Monitoring Instrument (OMI) (on Aura) as part of the ESA Climate Change Initiative (CCI) Precursors for Aerosols and Ozone project.
This dataset provides gridded SO2 column densities of monthly 0.125°x0.125° and daily 0.25°x0.25° resolution grids from October 2004 to December 2022. The L3 product is based on the Level 2 SO2 product created for the Precursors_cci project. Compared to the operational OMI product, the SO2 slant columns are computed using the COBRA scheme, the air mass factors have been processed using the CAMS Reanalysis Model for the a priori vertical profiles. In addition to the main product results, such as SO2 slant column, vertical column and air mass factor, the Level 3 data files contain several additional parameters and diagnostic information such as uncertainties, a priori profiles and averaging kernels. Data are available in NetCDF format.
The European Space Agency (ESA) Precursors for Aerosol and Ozone Climate Change Initiative (Precursors CCI) project is part of ESA's Climate Change Initiative (CCI) to produce long term datasets of Essential Climate Variables derived from global satellite data (https://climate.esa.int/en/projects/precursors-for-aerosols-and-ozone/).
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| 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://artefacts.ceda.ac.uk/licences/specific_licences/esacci_precursors_for_aerosols_and_ozone_terms_and_conditions.pdf When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA). |
| Data Quality: |
For information on data quality see the project documentation
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| File Format: |
netcdf
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Process overview
Instrument/Platform pairings
| OMI (Ozone Measuring Instrument) | Deployed on: EOS-AURA |
Computation Element: 1
| Title | Computation for CCI Precursors daily and monthly L3 SO2 from OMI, version 1.0 |
| Abstract | See ATBD of ESA CCI Precursors for Aerosols and Ozone Project Website |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
- units:
- var_id: SO2_slant_column_number_density_rms
- long_name: RMS of the COBRA results
- units:
- var_id: total_SO2_column_number_density_amf
- long_name: SO2 AMF
- units:
- var_id: total_SO2_column_number_density_amf_clear
- long_name: SO2 AMF clear
- units: 1
- var_id: qa_L3
- long_name: SO2 QA L3
- units: molec/cm^2
- var_id: total_SO2_column_number_density_apriori
- long_name: SO2 VCD CTM
- units: molec/cm^2
- var_id: total_SO2_column_number_density_uncertainty_random
- long_name: SO2 VCDER
- units: molec/cm^2
- var_id: total_SO2_column_number_density_uncertainty_systematic
- long_name: SO2 VCDES
- units: molec/cm^2
- var_id: total_SO2_column_number_density_uncertainty_systematic_kernel
- long_name: SO2 VCDESK
- units: ppv
- var_id: SO2_volume_mixing_ratio_dry_air_apriori
- long_name: SO2 a priori profile
- units:
- var_id: SO2_averaging_kernel
- long_name: SO2 column averaging kernel
- units: molec/cm^2
- var_id: SO2_slant_column_number_density
- units: molec/cm^2
- var_id: SO2_slant_column_number_density_uncertainty
- var_id: cloud_fraction
- long_name: cloud fraction
- units:
- units: Pa
- var_id: cloud_pressure
- long_name: cloud pressure
- units: hPa
- var_id: ctm_sigma_a
- long_name: ctm sigma-values a
- units: 1
- var_id: ctm_sigma_b
- long_name: ctm sigma-values b
- units:
- var_id: eff_date
- long_name: effective date
- units:
- var_id: eff_fract_day
- long_name: effective fractional day in local solar time
- var_id: latitude_bounds
- long_name: grid latitude bounds
- var_id: longitude_bounds
- long_name: grid longitude bounds
- var_id: surface_albedo
- units:
- long_name: surface albedo at 328 and 376nm
- units: Pa
- long_name: surface pressure
- var_id: surface_pressure
- units: molec/cm^2
- var_id: total_SO2_column_number_density
- units: molec/cm^2
- var_id: total_SO2_column_number_density_box
- units: molec/cm^2
- var_id: total_SO2_column_number_density_clear
- units: molec/cm^2
- var_id: total_SO2_column_number_density_clear_std
- units: 1
- var_id: total_SO2_column_number_density_count
- units: molec/cm^2
- var_id: total_SO2_column_number_density_std
- units: 1
- var_id: weight
Co-ordinate Variables
- units: degree_north
- standard_name: latitude
- var_id: latitude
- units: degree_east
- standard_name: longitude
- var_id: longitude
- standard_name: time
- var_id: time
- units: days
- long_name: number of days since 1995-01-01
Temporal Range
2004-10-01T00:00:00
2022-12-31T23:59:59
Geographic Extent
90.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |