Global Sea Ice Concentration climate data record (SMMR/SSMI/SSMIS), release 2Superseded Archived climate product
OSI SAF FTP server
This Climate Data Record has been reprocessed several times:
[1st release] OSI-409 and OSI-409-a
[2nd release] OSI-450 was released in 2017
[3rd release] OSI-450-a was released in 2022. We advice you to use the latest release.