Global Sea Ice Concentration interim climate data record, release 2
This product is an operational extension of the Sea Ice Concentration Climate Data Record OSI-450, with a latency of 16 days, starting in 2016. OSI-430-b uses passive microwave data (PMW) from the SSMIS sensors, and the same algorithms as OSI-450. The product includes error-bars for each grid cell (uncertainties).
Acronym :GBL SICO ICDR 2
OSI SAF producer :Norwegian Meteorological Institute
Identifier :OSI-430-b (complementing OSI-450)
Processing level :L3+L4
Satellite input :DMSP/SSMIS
Other input :ECMWF re-analysis and forecast for atmospheric correction
Frequency :1 per day
Central time :12:00
Timeliness :16 days
Spatial coverage :Global
Spatial sampling :25 km
Projection :Lambert azimuthal
File Formats :HL FTP Server (NetCDF4)
Characteristics & methods :Daily averaged fractional ice cover in percentage. Fully consistent with with OSI-450, to ensure homogeneity.
Main Diffusion Means :
Archive HL FTP server : ftp://osisaf.met.no/reprocessed/ice/conc-cont-reproc/v2p0/
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 hindcast models, environmental agencies