Remarkable growth of ice in Bering Sea has been observed over the last three weeks as shown above. The extent went from 57k km2 to 424k km2 during that period, and is presently 94% of the maximum Bering ice extent in March 2018. To put this event in context, note that Bering 2018 maximum was low and pulled down the overall Arctic extent in March. For example, 2017 Bering maximum was 725k km2 compared to 2018 max of 451k km2, or a difference of 48%. We will be watching to see how much will be added in the coming 3 months.
Note also that Chukchi north of Bering completed freezing over on day 352, December 18, 2018. We can also see that Okhotsk on the left was freezing at the same rate as Bering, but added no new ice in the last week.
The Bering ice recovery coincides with the…
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