Remarkable Arctic ice recovery continued in December as seen in the animation below:
The month of December 2021 shows Hudson Bay (lower right) starting with only some shore ice and ending virtually ice covered, adding in that basin 925K km2, nearly a full Wadham. Just above Hudson, you can see the Gulf of St. Lawrence icing over, and Baffin Bay adding ice as well, adding 257k km2 to the total.
At the extreme left Okhotsk Sea also starts with shore ice and grows 435k km2, reaching down to Japan. At the top Kara freezes over and Barents and Greenland Seas add ice to their margins. The graph below shows the December ice recovery
Note the average year adds 2M km2 and 2021 exceeded that by ~200k km2, maintaining its surplus position. Other years starting far behind drew closer to average by the end. SII has not yet reported its estimate…
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