Arctic Sea-Ice is much THINNER Than we Thought

Arctic Sea-Ice is much THINNER Than we Thought // Published on Oct 27, 2017

The thickness, and thus volume of remaining Arctic sea-ice is much less than we think. In late winter, what we thought was 3 ft thick ice is actually only about 2.8 ft thick; 2 ft thick ice is really only about 1.5 ft thick.


Ice volumes are lower by 11% to 25% depending on the overall thickness patterns.  Terribly significant news, since sea-ice loss means broken persistent jet streams and many more, severe, longer duration extreme weather events.

For reference:

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Arctic on THIN(NER) Ice: Brainstorming // Published on Oct 27, 2017

In my previous video I explained that seasonal (first year) Arctic sea ice that we thought (last week) was about 3 feet (or 2 feet) thick is really only about 2.7 feet (or 1.5 feet) thick this week. This is huge, with enormous implications. In this video, I brainstorm on how this error affects volume, how it varies over the melt season, and how it affects ice regrowth in the fall. Bottom line: Complete loss of Arctic sea ice is even sooner than we thought.
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About paulbeckwith

Well known climate science educator; Part-time Geography professor (climatology, oceanography, environmental issues), University of Ottawa. Physicist. Engineer. Master's Degree in Science in Laser Optics, Bachelors of Engineering, in Engineering Physics. Won Association of Professional Engineers of Ontario gold medal. Also interested in investment and start-ups in climate solutions, renewable energy and energy efficiency. Avid chess player, and likes restoring old homes. Married with children.
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1 Response to Arctic Sea-Ice is much THINNER Than we Thought

  1. Dale Lanan says:

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