Release of Sea-Ice Concentration Climate Data Record based on AMSR-E and AMSR2 satellite data

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Release of Sea-Ice Concentration Climate Data Record based on AMSR-E and AMSR2 satellite data

Stefan Kern-2

Dear sea ice data users,

The Sea Ice Climate Change Initiative team is pleased to announce the release of a full reprocessing of the Sea Ice Concentration (SIC) v2.0 Essential Climate Variable (ECV). The release provides Climate Data Record (CDR) of SIC over the polar regions, derived from medium resolution passive microwave satellite data of AMSR-E (June 2002 - September 2011) and AMSR2 (July 2012 - December 2015).

Two new CDRs are made available:

Please visit the respective landing pages for access to  documentation and data.

Alternatively you could access the documentation and data via the Integrated Climate Data Center (ICDC:

The two SIC CDRs use different imaging channels and therefore they have different characteristics and accuracies. Initial validation work indicates that the 50km CDR has higher accuracy than the 25km CDR across the range of sea ice concentration values, however, it has lower spatial resolution. Compared to similar SIC CDRs available e.g. from EUMETSAT OSI SAF or NSIDC, the SICCI 25km CDR has finer spatial details, especially in the ice edge region due to the finer spatial resolution of the AMSR-E and AMSR2 data used here.

These two CDRs were generated in the context of the ESA Climate Change Initiative Programme (ESA CCI) by the Sea_Ice_CCI project ( The EUMETSAT OSI SAF contributed with access and re-use of part of its processing software and facilities.

In parallel, please note that the EUMETSAT OSI SAF is preparing a new version of their global SIC CDR, using some algorithms developed during ESA CCI. The new OSI SAF CDR covers years 1979 to 2015 and is processed from instruments with coarser spatial resolution (SMMR, SSM/I, and SSMIS). Its release will be announced on

With apologies for potential cross-postings I remain with best regards on behalf of the SICCI project team!

Stefan Kern


 Dr. Stefan Kern                     SEA ICE <> SNOW <> REMOTE SENSING

 Integrated Climate Data Center - ICDC
 Center for Earth System Research and Sustainability
 Universität Hamburg
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The Cluster of Excellence "Integrated Climate System Analysis and
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its partners, supported by the German Research Foundation. CliSAP is
the nucleus of the Center for Earth System Research and Sustainability
(CEN). The CEN combines expertise from the natural and social sciences
and unites nine institutes and research centers at Universität Hamburg.

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