Global Low Resolution Sea Ice Drift

IDENTIFICATION
DescriptionIce motion vectors with a time span of 48 hours are estimated by an advanced cross-correlation method (the Continuous MCC, CMCC) on pairs of satellite images. Several single-sensor products are available, along with a merged (multi-sensor) dataset.
Product typeNear real time productThumbnail
StatusOperational
IdentifierOSI-405-c
AcronymGBL LR SIDR
Acronym for EDC (APNM)OSIDRGB
Product navigator referenceEO:EUM:DAT:MULT:GBL-LR-SID
CHARACTERISTICS
Processing levelL3
Satellite inputDMSP/SSMIS, Metop/ASCAT and GCOM-W/AMSR-2
Other inputECMWF outputs
Frequency1 per day
Central time12:00
Timeliness6 h
Spatial coverageGlobal
Spatial sampling62.5 km
ProjectionPolar stereographic
Characteristics & methodsSingle and multi sensor analysis.
Displacement after 48 hours in km.
ACCURACY REQUIREMENTS
Thresold accuracy10 km yearly std deviation on both x and y components after 48 hours displacement
Target accuracy5 km yearly std deviation on both x and y components after 48 hours displacement
Optimal accuracy2 km yearly std deviation on both x and y components after 48 hours displacement
Verification/validation methodCollocation with buoys
DATA ACCESS
OSI SAF ProducerNorwegian Meteorological Institute
Diffusion mean(s) and format(s)MET Norway FTP Server (NetCDF3)
RedistributionSEAICE_GLO_SEAICE_L4_NRT_OBSERVATIONS_011_001 :
http://marine.copernicus.eu/web/69-myocean-interactive-catalogue.php?option=com_csw&view=details&product_id=SEAICE_GLO_SEAICE_L4_NRT_OBSERVATIONS_011_001
Link FTP serverMET FTP server
Applications and usersNWP and Ocean/Ice models, operational Met and Sea Ice services.
VIEW MORE DOCUMENTATION
Product web pageDescriptionProduct User ManualPUM
Live production statusProduction statusAlgorithm Theoretical Baseline DocumentATBD
Last products at a glanceQuicklookScientific Validation ReportSVR
Continuous monitoringQuality
HISTORY, COMMENTS

An new variable is introduced in the OSI-405-c NetCDF files : the product uncertainties. The new variable provides an uncertainty value (aka expected accuracy) for each grid location. In the case of OSI -405-c, the new variable holds the standard deviation of the uncertainty in the components of the ice drift displacement vectors.

Authorised to be operational/released22/11/2016
Declared operational/released30/05/2017
On EUMETCast since30/05/2017
In EDC since30/05/2017
First product date30/05/2017