Update to VIIRS Aerosol Optical Depth product SNPP and NOAA-20 VIIRS Aerosol Optical Depth products will be updated on 16 May 2023. Last Updated 04 May 2023 Published on 04 May 2023 NOAA has announced a version change for their SNPP and NOAA-20 VIIRS Aerosol Optical Depth products that we distribute on EUMETCast. The new version, v3r2, will be released on 16 May and introduces the following scientific changes: Fix to the initialization and pointers. Change to use 17 class Surface Types, rather than 14 class Surface Types. The new version will be reflected in the product filenames. For more information, contact our User Service Helpdesk. Previous Latest data news Next News 7 June 2023 NOAA-21 CrIS data available soon NOAA-21 CrIS (Cross-track Infrared Sounder) data available on EUMETCast and the GTS from 21 June 2023. News 31 May 2023 Simulated MTG Flexible Combined Imager test data in BUFR format Simulated MTG FCI Atmospheric Motion Vector (AMV) and All-Sky Radiance Product (ASR) test data now available. News 26 May 2023 New version of EPS-SG MWI-ICI L2 test data A new version of the EPS-SG MWI-ICI L2 test data (V2) has been released to users. News 25 May 2023 NOAA-21 ATMS data available soon NOAA-21 ATMS data available on EUMETCast and the GTS from 1 June 2023. News 17 May 2023 New CM SAF SEVIRI Radiation ICDR A new edition of CM SAF SEVIRI Radiation ICDR is now available on EUMETCast. News 17 May 2023 Change to NOAA-19 data provision In the context of NOAA POES Extended Life, the way we provide NOAA-19 sounder data will change. All latest news