Licensed under CC BY 4.0 by EUMETSAT
Information
Global Low Resolution Sea-Ice Drift Interim Climate Data Record, release 1
Demonstrational Climate productAn Interim Climate Data Record of the sea-ice drift variable, associated to the Climate Data Record OSI-455. Based on Passive Microwave Radiometer data (SSMIS and AMSR2). Summer seasons are gap-filled using a Free Drift model forced with ERA5 10m wind data.
L3+L4 daily files.
Identification
Acronym : GBL LR SIDR ICDR R1
OSI SAF producer : Norwegian Meteorological Institute
Identifier : OSI-435 (complementing OSI-455)
Characteristics
Processing level : L3+L4
Satellite input : SSMIS and AMSR2
Other input : NWP outputs (Copernicus C3S ERA5T, with ECMWF operational forecast as backup)
Temporal sampling : 24 h
Central time : Displacement from (D-1)@12:00 to D@12:00
Spatial coverage : Global
Spatial sampling : 75 km
File Format(s) : NetCDF4
Characteristics & methods : Single and multi sensor analysis. Displacement after 24 hours in km.
Data Access
OSI SAF FTP server
ftp://osisaf.met.no/reprocessed_test/
Directory: ice/drift_lr_icdr/v1
Accuracy Requirements
Target accuracy : 5 km
Verification/validation method : Collocation with buoys. Target statistics are yearly std. dev. of the 24 hours displacement. See note at the bottom.
Applications and users
Usage : Climate models, NWP and Ocean/Ice reanalyses, environmental agencies.
History
On FTP server since :
First date :
Full series temporal coverage : 2021-2025
New ticket helpdesk