Medium Resolution Sea Ice Drift

Operational Near real time product

Ice motion vectors with a time span of 24 hours are estimated by a maximum cross-correlation method (MCC) on pairs of satellite images. Input data are ~1km Infra Red or Visible data from the AVHRR instrument on board the Metop satellite.

Acronym : NH MR SIDR
Product navigator reference :


OSI SAF producer : Danish Meteorological Institute
Identifier : OSI-407-a
Acronym for EDC (APNM) : OMRSIDRN
Citation : See at bottom
Processing level : L3
Satellite input : Metop/AVHRR
Other input : None
Temporal sampling : 4 per day
Central time : ~00:00, ~06:00, ~12:00, ~18:00
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. 6 h
Spatial coverage : Northern Hemisphere
Spatial sampling : 20 km
Projection : Polar stereographic
File Formats : HL FTP Server (NetCDF3)
Characteristics & methods : Single sensor analysis.
Displacement after 24 hours in km.
Including uncertainties.
Data Access

OSI SAF FTP server (last 31 days)

Directory: ice/drift_mr/

OSI SAF FTP server (archive)

Directory: ice/drift_mr/

EUMETSAT Multicast

Accuracy Requirements
Target accuracy : 2 km yearly std deviation after 24 hours displacement
Verification/validation method : Collocation with buoys
Applications and users
Usage : Ocean/Ice and NWP models, operational Met and Sea Ice services
Authorised to be operational / released :
Declared operational / released since :
On EUMETCast since :
On EDC since :
On FTP server since :
First date :
Full series temporal coverage : 2014-onwards
Detailed history :

The product series is operational since 2014:

  • version OSI-407 from 2014 to 11/10/2018
  • version OSI-407-a from 11/10/2018 onwards
Citation : OSI SAF Medium Resolution Sea Ice Drift, OSI-407-a. EUMETSAT Ocean and Sea Ice Satellite Application Facility. Data extracted from [distributor/distribution mean]: ([extracted period],) ([extracted domains],) accessed [download date]

The content within square brackets "[…]" is to be replaced with whatever distributor, period, domain or download date is relevant to the data being used. The "extracted period" and "extracted domains" are only needed if a subset of the data is being used.
Suggestions for "distributor/distribution mean": OSI SAF FTP server/the EUMETSAT Data Centre/EUMETCast/name and URL of a redistributor...
  • Replaced OSI-407 on 11 October 2018. Main changes are : use of satellite Metop-B instead of Metop-A, product computed 4 times daily (insead of 2 times previously), individual uncertainties for each ice drift vector.

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