Upgrade of GBL SST, MGR SST, NAR SST and IASI SST

Following the OSI SAF service message #1630 announcing an upcoming upgrade of GBL SST and MGR SST, we have now planned to do the upgrade on Tuesday 17 July 2018 morning. It concerns the 2 following products :

• OSI-201-b Global Metop Sea Surface Temperature (L3 GBL SST)
• OSI-204-b Full resolution Metop Sea Surface Temperature metagranules (L2 MGR SST)

and consist in a cloud mask upgrade and an improvement in the GLB SST algorithm.

Along with this upgrade, the netCDF library used to generate the netCDF4 products will also be updated to version 4.4.1.1 in the processing chain. As a consequences, please take note that there will be an additional global attribute (_NCProperties) which specifies the versions of the netCDF and HDF5 libraries used to create the netCDF4 file.
This last information concerns also:

• OSI-202-b North Atlantic Regional Sea Surface Temperature (L3 NAR SST), based on AVHRR data
• OSI-208-b Infrared Atmospheric Sounding Interferometer Sea Surface Temperature (L2 IASI SST)