Upgrade of OSI SAF high latitude Flux products

The OSI SAF Flux products is ready for upgrade. The current longwave (OSI-301-b) and shortwave (OSI-302-b) downward products will be replaced with the new versions, which have product IDs OSI-301-c and OSI-302-c. As before, these two products are provided in the same product file.
The major changes are the following:

• Inclusion of VIIRS data from NOAA-20 and S-NPP
• Inclusion of Metop-C
• Switch from PPS v2014 to PPS v2021 for cloud products
• Adjustment of the cloud transmittance coefficient

The product file format is mainly unchanged, except some additions/corrections to the global attributes. For more details, check the new Product User Manual here:
https://osisaf-hl.met.no/sites/osisaf-hl/files/user_manuals/osisaf_cdop3_ss2_pum_ahl-l3-flux_v2p1.pdf

This change will be implemented as a hard switch in our distribution to FTP and EUMETCast on 23-05-2023 at 12:00 UTC. Until then, the new product files are available on the following test directory on our FTP server:
ftp://osisaf.met.no/prod_test/flux/daily

If you have questions, please contact us on osisaf-manager@met.no