Global Sea Ice Concentration (AMSR-2)
Operational Near real time productThe 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)
Identification
Acronym : GBL AMSR SICO
Product navigator reference :
EO:EUM:DAT:GCOM:OSI-408
OSI SAF producer : Danish Meteorological Institute
Identifier : OSI-408-a
Acronym for EDC (APNM) : OSICOAMSRGB
Characteristics
Processing level : L3
Satellite input : GCOM-W/AMSR-2
Other input : NWP outputs
Temporal sampling : 1 per day
Central time : 12:00
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.
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
Data Access
Directory
Archive HL FTP server : ftp://osisaf.met.no/archive/ice/conc_amsr
Accuracy Requirements
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.
History
Authorised to be operational / released :
On FTP server since :
Expected date for operational/released :
First date :
Comments
New ticket helpdesk
Improved algorithm. Superseds OSI-408.