Level 2 PMW sea ice concentration

Superseded Archived NRT product

Sea ice concentration product on satellite swath for SSMIS and AMSR-2 instruments. The product is delivered on the native spatial sampling, and with
separate product files for SSMIS and AMSR-2. The product also includes uncertainty estimates and product quality flags.

Acronym : L2 SICO
OSI SAF producer : Danish Meteorological Institute
Identifier : OSI-410
Processing level : L2
Satellite input : DMSP/SSMIS, GCOM-W1/AMSR-2
Other input : ECMWF outputs
Temporal sampling : Up to 15 per day for each SSMIS, and 30 per day for AMSR-2
Central time : NA
Timeliness : ? The timeliness is the time elapsing from the sensing time of the last contributing file to the product dissemination to users. It is similar to the latency. 3h40
Spatial coverage : Global
Spatial sampling : SSMIS: 25 km, AMSR-2: 10 km
Projection : Swath
File Formats : HL FTP Server (NetCDF4), EDC (NetCDF4), EUMETCast (NetCDF4)
Characteristics & methods : L2 fractional ice cover in percentage.
Data Access

OSI SAF FTP server (archive)

Directories: ice/conc_l2_amsr/, ice/conc_l2_ssmis/

Accuracy Requirements
Target accuracy : 10 % for NH-product. 15 % for SH-product
Verification/validation method : Comparison with high resolution manual ice charts (Frequency of availability between once a day and once a week): the performance shall be validated for only the “ice” (100 % ice) and “water” (0 % ice) cases, separately.
Applications and users
Usage : NWP and Ocean/Ice models, operational Met and Sea Ice services.
Authorised to be operational / released :
Declared operational / released since :
On EUMETCast since :
On EDC since :
On FTP server since :
First date :
Last date :
Full series temporal coverage : 2021-onwards
Detailed history :

The product series is operational since 2021:

  • version OSI-410 from 01/07/2021 to 21/01/2023
  • version OSI-410-a from 21/01/2023 onwards
  • This product is currently produced internally in the OSI SAF to generate L3 products (OSI-401-b and OSI-408). It is planned to be distributed outside OSI SAF from the beginning of 2019, especially to be used as input for NWP models.

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