New version of the OSISAF Sea Ice Concentration Climate Data Record

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The EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF) team is pleased to announce the release of OSI-450, a new full reprocessing of its Sea Ice Concentration (SIC) Climate Data Record (CDR). The release provides a SIC CDR over the polar regions, derived from passive microwave satellite data of SMMR, SSM/I and SSMIS, covering years 1979 to 2015.

This is the second version of such a sea ice concentration CDR by the OSI SAF. The basic principles and methodologies that were the backbone of our previous CDR (OSI-409) are still featured in OSI-450 (e.g. atmospheric correction of brightness temperature with NWP re-analysis data, state of the art algorithms, dynamic tie-points, uncertainties, etc...). They were nevertheless all revisited for this new release, through dedicated R&D in the OSI SAF project and in the ESA Climate Change Initiative (http://cci.esa.int) Sea Ice projects, whose contribution is acknowledged. Key improvements embedded in OSI-450 are more accurate and stable algorithms, open water filters to limit false ice detection over the ocean, and more realistic uncertainty estimates.

Interested users of OSI-450 are invited to explore and download the data from our website (http://osisaf.met.no) and FTP server (ftp://osisaf.met.no).

We hope the OSI-450 can be of interest for your applications and research, and stay available for any questions you might have on this CDR at osisaf-manager@met.no.

All the best, The OSI SAF HL Team, at the Norwegian and Danish Meteorological Institutes

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osi450_20120915