Jan. 19 Arctic Ice Returns to Mean

Science Matters

A previous post noted the Pacific ice see saw had returned, with Bering Sea slow to recover.  The image above shows recovery of Arctic sea ice extent over the month of January 2019. As supported by the table later, the pace of refreezing was slow to begin but has now allowed 2019 to match the 13 year average (2007 to 2019 inclusive). Okohotsk Sea on the left has grown ice extent steadily to be currently at 66% of last March maximum.  Bering on the right waffled back and forth but gained strongly the last few days.

The graph below shows the ice extent growing during January compared to some other years and the 13 year average (2007 to 2019 inclusive).

Note that the  NH ice extent 13 year average increases about 1.2M km2 during January, up to 14.4M km2. MASIE 2020 stated with a slower icing rate, dropping 300k km2…

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