Global Sea Ice Concentration (SSMIS)

Development Near real time product

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).

Acronym : GBL SICO
Product navigator reference :


OSI SAF producer : Danish Meteorological Institute
Identifier : OSI-401-d
Acronym for EDC (APNM) : OSICOGB
Processing level : L3
Satellite input : DMSP/SSMIS
Other input : NWP outputs
Frequency : 1 per day
Central time : 12:00
Timeliness : 5 h
Spatial coverage : Global
Spatial sampling : 10 km
Projection : Polar Stereographic
File Formats : HL FTP Server (NetCDF3), EDC (NetCDF3), EUMETCast (NetCDF3)
Characteristics & methods : Daily averaged fractional ice cover in percentage. Include uncertainty estimates.
Data Access
Main Diffusion Means : HL FTP server (test) :
Accuracy Requirements
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.
Expected date for operational/released :
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