30 Jul '11, 3pm

Melt Season in the Arctic Getting Longer : Image of the Day #NASA #climate

Melt Season in the Arctic Getting Longer : Image of the Day #NASA #climate

The icy cap over Earth’s North Pole reaches its summer minimum in September and its winter maximum in late February or early March. Satellite observations since 1979 have shown that amount of ice that survives the summer is getting smaller; declines have been especially dramatic in the past decade. Recently, scientists from NASA and the National Snow and Ice Data Center described another way Arctic sea ice is changing: the summer melt season is getting significantly longer. This trio of images shows changes between 1979 and 2007 in the average date of melt onset in the spring (left), the first autumn freeze (center), and the total average increase in the length of the Arctic sea ice melt season. The color scales show the trends in days per decade. Red indicates trends consistent with warming: earlier melt onset, later freezes, and longer total melt season. White indicates ...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=42456

Tweets

Check it out, play along....win a prize! Where on Earth? #nasa #whereonearth

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earthobservatory.nasa.gov 31 Jul '11, 10pm

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earthobservatory.nasa.gov 30 Jul '11, 10pm

acquired June 7, 2011 download large image (2 MB, JPEG) acquired June 7, 2011 download GeoTIFF file (5 MB, TIFF) acquired ...

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earthobservatory.nasa.gov 30 Jul '11, 10pm

acquired June 7, 2011 download large image (2 MB, JPEG) acquired June 7, 2011 download GeoTIFF file (5 MB, TIFF) acquired ...

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e360.yale.edu 02 Aug '11, 12pm

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e360.yale.edu 02 Aug '11, 12pm

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