After an unusually cold summer in the northernmost latitudes, Arctic sea ice appears to have reached its annual minimum summer extent for 2013 on Sept. 13, the NASA-supported National Snow and Ice Data Center (NSIDC) at the University of Colorado in Boulder has reported. Analysis of satellite data by NSIDC and NASA showed that the sea ice extent shrunk to 1.97 million square miles (5.10 million square kilometers), the sixth-lowest on record.
This animation shows daily Arctic sea ice extent and seasonal land cover change from May 16 through Sept. 12, 2013, the day before the sea ice reached its minimum area of coverage for the year. The data was provided by the Japan Aerospace Exploration Agency (JAXA) from their AMSR2 instrument aboard the GCOM-W1 satellite.
Credit: NASA
WWW.NASA.gov
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