720 x 480
These images show Arctic sea ice extent for the September 2009 summer minimum and the March 2010 winter maximum. Ice extents were greater than they had been in many recent years, but were still below the long-term average.
NASA image created by Jesse Allen, using AMSR-E data courtesy of the National Snow and Ice Data Center (NSIDC), and sea ice extent contours courtesy of Terry Haran and Matt Savoie, NSIDC, based on Special Sensor Microwave Imager (SSM/I) data. Caption by Michon Scott.
Published April 23, 2010