14 March 2017:
The European Space Agency Sea Ice Climate Change Initiative team has announced 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).
The full announcement is available here.