Archived Nasa Climate Change
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Arctic sea ice from March to September 2017
Posted
September 19, 2017
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September 19, 2017
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0:14Now PlayingArctic sea ice appears to have reached a record low wintertime maximum extent for 2017, according to scientists at the NASA-supported National Snow and Ice Data Center (NSIDC) in Boulder, Colo. Observations indicate that on September 13th, ice extent shrunk to the eighth lowest in the satellite record, at 4.64 million sq km, or 1.79 million sq mi.
In this visualization, the daily Arctic sea ice and seasonal land cover change progress through time, from this year’s wintertime maximum extent on March 7, 2017, through September 13, 2017 when the sea ice reached its annual minimum extent for the year. Over the water, Arctic sea ice changes from day to day showing a running 3-day minimum 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 minimum of the AMSR2 89 GHz brightness temperature. Over the terrain, monthly data from the seasonal Blue Marble Next Generation fades slowly from month to month.
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