Arctic Ice Cover Reaches Second Lowest Minimum in 2016

The 2016 Arctic sea ice minimum extent is tied with 2007 for the second lowest yearly minimum in the satellite record at 4.14 million square kilometres.

Arctic sea ice appeared to have reached its annual lowest extent on September 10, NASA and the NASA-supported National Snow and Ice Data Center (NSIDC) at the University of Colorado at Boulder reported.//

At 4.14 million square kilometres, the 2016 Arctic sea ice minimum extent is effectively tied with 2007 for the second lowest yearly minimum in the satellite record.

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‘The sea ice cover of the Arctic ocean and surrounding seas helps regulate the planet's temperature, influences the circulation of the atmosphere and ocean, and impacts Arctic communities and ecosystems.’

"The record makes it clear that the ice is not rebounding to where it used to be, even in the midst of the winter," said Claire Parkinson, main author of the study and a senior climate scientist at NASA's Goddard Space Flight Center in Greenbelt, Maryland

The lowest sea ice extent recorded was on September 17, 2012, when it fell to just 3.39 million square kilometres, CNN reported.

Arctic sea ice shrinks every year during the spring and summer until it reaches its minimum yearly extent.

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Sea ice regrows during the frigid fall and winter months, when the sun is below the horizon in the Arctic.

This summer, the melt of Arctic sea ice surprised scientists by changing pace several times.

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The melt season began with a record low yearly maximum extent in March and a rapid ice loss through May.

But in June and July, low atmospheric pressures and cloudy skies slowed down the melt.

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Then, after two large storms went across the Arctic basin in August, sea ice melt picked up speed through early September, the report said.

"It's pretty remarkable that this year's sea ice minimum extent ended up the second lowest, after how the melt progressed in June and July," Walt Meier, a sea ice scientist with NASA's Goddard Space Flight Center said.

Source-IANS