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View Diary: Sudden Stratospheric Warming Split the Polar Vortex in Two (235 comments)

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  •  The extent is large but (3+ / 0-)
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    Calamity Jean, Villabolo, maryabein

    there's not a lot of volume. The PIOMAS volume is about 1000 cubic kilometers below this time last year. Or look at the Navy's HYCOM drift chart. It shows a lot of thin ice moving around the central basin as quickly as if it were midsummer. Quicker than it would have drifted at midsummer a decade back.

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