New SLSTR NRT Aerosol Optical Depth product
NRT Aerosol Optical Depth (AOD) product deployed on 27 August 2020.
26 September 2023
14 October 2021
This product is produced by the reference 'Optimised Simultaneous Surface Aerosol Retrieval' (OSSAR-CS3) processor upgraded as version 3 in the EUMETSAT operational S3 ground segment. In the long term, EUMETSAT intends to establish an algorithm baseline resilient to any dual-view direction from space-borne sensors.
Over land surfaces, these evolutions bring major quality improvements to Aerosol Optical Depth retrieval (e.g. strong bias reduction, lower amount of cloud contamination). As a result, the scientific maturity and quality label of the product over lands has been upgraded from Demonstrational (Collection 1) to Preliminary Operational (Collection 2), thus, now aligned with over oceans. Figure 1 illustrates the benefits with the 2021 Siberian wildfires.
Other changes are the provision of a series of new parameters in the output netCDF product:
Over oceans, the algorithm remains strictly similar between Collections 1 and 2.
We invite users to provide feedback on the ATBD and PVR v1 documents, as well as on the Collection 2 data. This will be used as part of v2, and in the preparation of the future Collection 3, planned for 2022.
For more information contact our User Service Helpdesk.
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