Arctic Ice Already Exceeds Six Wadhams

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Attention COP26 attendees! Please refrain from flogging the dead horse of terminal Arctic sea ice decline.

Science Matters

The images above come from MASIE showing ice extents starting day 266, the lowest daily extent in 2021. Over the last 18 days, Arctic ice has grown by 1 Wadham (1M km2) to now exceed 6 Wadhams, about 276k km2 greater than the 14-year average for day 284. At the bottom center Barents Sea ice reaches out to Iceland.  Svalbard bottom right becomes encircled by ice.  East Siberian Sea top right has ice connecting to the shore. Top center Beaufort and Chukchi seas are also adding ice rapidly.

The ice recovery since September minimum is shown in the graph below.

Day 260 was the 14 year average annual daily minimum at 4.39m km2. MASIE 2021 was 776k km2 above average, and SII was 427k km2 lower than MASIE.  Note that 2007, 2019 and 2020 weere much lower than average throughout the period. SII is again tracking MASIE since day 274.

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via Tallbloke’s Talkshop

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October 14, 2021 at 10:51AM

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