sunshine hours

December 19, 2017

Sea Ice Extent (Global Antarctic and Arctic) – Day 352 – 2017

South / North



  1. Which other two years besides 2016 are lower than this year?

    Comment by AZ1971 — December 19, 2017 @ 10:36 AM | Reply

  2. 2010 and 2012

    Comment by sunshinehours1 — December 19, 2017 @ 11:14 AM | Reply

    • I’m sorry, I should have been more specific. I meant for the Antarctic.

      Comment by AZ1971 — December 19, 2017 @ 3:21 PM | Reply

  3. “1979 and 1982”
    So that somewhat confirms the theory that as Arctic extent decreases, Antarctic extent increases—and vice versa. Since the AMO, PDO, and AO periodicity have not been convincingly long enough to fully cycle through each, those natural phenomenon could explain most if not all of the decline in Arctic extent. We’ll have to wait and see another 10-20 years to determine whether or not Arctic extent returns to historical levels or if there’s truly something else going on.

    Comment by AZ1971 — December 20, 2017 @ 4:06 PM | Reply

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