Updated Arctic Sea Ice: 02-18-2021

February 18, 2021: Over the past week, the sea ice has now decreased from last week by a surprising rate of 1.93% from the level on 02/11/2021 of 14.577 M km2 to 14.295 M km2 for this week. Time will tell if this is an anomalous decrease in sea ice from possible wind changes or the beginning of the sea ice decline season, which usually does not begin until about mid-March.

Plot Compiled by: Howard J. Diamond, PhD; Climate Science Program Manager at NOAA's Air Resources Laboratory Data Source: National Snow & Ice Data Center (NSIDC; https://nsidc.org/.

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Daily sea ice concentration provided by NSIDC.

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Plot Compiled by: Howard J. Diamond, PhD; Climate Science Program Manager at NOAA's Air Resources Laboratory Data Source: National Snow & Ice Data Center (NSIDC; https://nsidc.org/.