The High Latitude Level 3 Global AMSR Sea Ice Concentration consists of these major fields:
- Sea ice concentration. Indicates the fraction of a given ocean grid point covered by ice.
- Uncertainties. The algorithm uncertainty, the smearing uncertainty and the resulting total uncertainty of each sea ice concentration grid cell.
- Confidence level. Based on the daily standard deviation within each grid cell, provided as a guide.
This product is complementary to the SSMIS global sea ice concentration product (OSI-401-d)
File Formats :HL FTP Server (NetCDF3), EDC (NetCDF3), EUMETCast (NetCDF3)
Characteristics & methods :Daily averaged fractional ice cover in percentage
Main Diffusion Means :
HL FTP server (test) : ftp://osisaf.met.no/archive_test/ice/conc_amsr
Target accuracy :10 % for NH-product. 15 % for SH-product
Verification/validation method :Comparison with high spatial 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 :Climate models, NWP and Ocean/Ice models, operational Met and Sea Ice services.