File:Oldest Arctic Sea Ice is Disappearing.png

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Summary

Description	English: The image shows sea ice coverage in 1980 (bottom) and 2012 (top), as observed by passive microwave sensors on NASA’s Nimbus 7 satellite and by the Special Sensor Microwave Imager/Sounder (SSMIS) from the Defense Meteorological Satellite Program (DMSP). Multi-year ice is shown in bright white, while average sea ice cover is shown in light blue to milky white. The data shows the ice cover for the period of November 1 through January 31 in their respective years.
Date	1 March 2012
Source	http://earthobservatory.nasa.gov/IOTD/view.php?id=77270 en:NASA Earth Observatory http://eoimages.gsfc.nasa.gov/images/imagerecords/77000/77270/seaiceage_ssm_2012_lrg.jpg http://eoimages.gsfc.nasa.gov/images/imagerecords/77000/77270/seaiceage_ssm_1980_lrg.jpg
Author	NASA scientist Joey Comiso

Licensing

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