Data products
Cloud
DESCRIPTION
The TROPOMI/S5P cloud properties retrieval is based on the OCRA and ROCINN algorithms currently being used in the operational GOME and GOME-2 products. OCRA retrieves the cloud fraction using measurements in the UV/VIS spectral regions and ROCINN retrieves the cloud height (pressure) and optical thickness (albedo) using measurements in and around the oxygen A-band at 760 nm. For TROPOMI/S5P we use OCRA/ROCINN Version 3.0, which is based on a more realistic treatment of clouds as optically uniform layers of light-scattering particles. Additionally the cloud parameters are also provided for a cloud model which assumes the cloud to be a Lambertian reflecting boundary. The figures below illustrate the Cloud Fraction (top panel) and the Cloud Top Pressure (lower panel) as derived from TROPOMI data from 2 January 2018.
| Version number | Version Effective Date | Summary of Changes |
|---|---|---|
| 1.01.05 | NRTI: 2018-12-05 (orbit 05932 to present) OFFL: 2018-11-28 (orbit 05833 to present) |
Current version |
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1.01.02 |
NRTI: 2018-08-08 (orbits 04243 to 05929) |
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1.01.01 |
NRTI: 2018-07-18 (orbits 03947 to 04242) |
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USER DOCUMENTATION: ATBD, PUM, & README
Links to the Algorithm Theoretical Basis Document (ATBD), Product User Manual (PUM), and the Product Readme File (PRF) is provided here on the right under Documentation. Note: this data product was publically released on 11 July 2018 and is available via the Copernicus Open Data Access Hub (see link on right).