Sea ice within the Arctic seems to have hit its annual minimal extent on Sept. 16, after waning within the 2021 Northern Hemisphere spring and summer time. {The summertime} extent is the Twelfth-lowest within the satellite tv for pc report, in accordance with scientists on the NASA-supported Nationwide Snow and Ice Information Heart and NASA.
This 12 months, the minimal extent of Arctic sea ice dropped to 4.72 million sq. kilometers (1.82 million sq. miles). Sea ice extent is outlined as the whole space by which ice focus is a minimum of 15%.
The typical September minimal extent report exhibits vital declines since satellites started measuring persistently in 1978. The final 15 years (2007 to 2021) are the bottom 15 minimal extents within the 43-year satellite report.
This visualization, created at NASA’s Goddard Area Flight Heart in Greenbelt, Maryland, exhibits information supplied by the Japan Aerospace Exploration Company (JAXA), acquired by the Superior Microwave Scanning Radiometer 2 (AMSR2) instrument aboard JAXA’s International Change Statement Mission 1st-Water “SHIZUKU” (GCOM-W1) satellite tv for pc.
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NASA finds 2021 Arctic summer time sea ice Twelfth-lowest on report (2021, September 22)
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https://phys.org/information/2021-09-nasa-arctic-summer-sea-ice.html | NASA finds 2021 Arctic summer time sea ice Twelfth-lowest on report