File:Arctic Sea Ice - September 2009 to March 2010 (HD VIDEO) (4497218048).jpg

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Sea ice is frozen seawater floating on the surface of the ocean. Some sea ice is semi-permanent, persisting from year to year, and some is seasonal, melting and refreezing from season to season. The sea ice cover reaches its minimum extent at the end of each summer and the remaining ice is called the perennial ice cover.

In this animation, the Arctic sea ice and seasonal land cover change progress through time, from September 1, 2009 when sea ice in the Arctic was near its minimum extent, through March 30, 2010. The animation plays at a rate of six frames per day or ten days per second. Over the water, Arctic sea ice changes from day to day showing a running 3-day maximum sea ice concentration in the region where the concentration is greater than 15%. The blueish white color of the sea ice is derived from a 3-day running maximum of the AMSR-E 89 GHz brightness temperature. Over the terrain, monthly data from the seasonal Blue Marble Next Generation fades slowly from month to month.

Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio. The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC).

To read a story related to this image go to: www.nasa.gov/topics/earth/features/ice-max-2010.html

To download this file go to: svs.gsfc.nasa.gov/goto?3698

NASA Goddard Space Flight Center is home to the nation's largest organization of combined scientists, engineers and technologists that build spacecraft, instruments and new technology to study the Earth, the sun, our solar system, and the universe.
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Source Arctic Sea Ice - September 2009 to March 2010 [HD VIDEO]
Author NASA Goddard Space Flight Center from Greenbelt, MD, USA

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by NASA Goddard Photo and Video at https://flickr.com/photos/24662369@N07/4497218048. It was reviewed on 27 September 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

27 September 2017

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current05:42, 27 September 2017Thumbnail for version as of 05:42, 27 September 20171,280 × 720 (479 KB)A1Cafel (talk | contribs)Transferred from Flickr via Flickr2Commons

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