Ice concentration is computed from atmospherically corrected SSMIS brightness temperatures, using a combination of state-of-the-art algorithms. The product series is operational since 2005 (version OSI-401-b since 26/05/2016, OSI-401-d under preparation). This product is complementary to the AMSR-2 global sea ice concentration product (OSI-408).
File Formats :HL FTP Server (NetCDF3), EDC (NetCDF3), EUMETCast (NetCDF3)
Characteristics & methods :Daily averaged fractional ice cover in percentage. Include uncertainty estimates.
Main Diffusion Means :
HL FTP server (test) : ftp://osisaf.met.no/archive_test/ice/conc_ssmis
Target accuracy :10 % for NH-product. 15 % for SH-product
Verification/validation method :Comparison with high resolution manual ice charts (available between twice a week and once a week): the performance shall be validated for only the “ice” and “water” cases, separately.
Applications and users
Usage :NWP and Ocean/Ice models, operational Met and Sea Ice services.