sunshine hours

March 3, 2015

Sea Ice Extent – Day 61

Global_Sea_Ice_Extent_Zoomed_2015_Day_61_1981-2010 Antarctic_Sea_Ice_Extent_Zoomed_2015_Day_61_1981-2010 Arctic_Sea_Ice_Extent_Zoomed_2015_Day_61_1981-2010

DataSouth / North






  1. Why isn’t the Arctic ice extent record observed for day 61 16.5, rather than the 16.14 shown on the bottom of the plot? Is one year intentionally ignored for some reason? It really doesn’t make much difference, since the present area is only down about 11% from the max we have observed.

    Comment by Mike — March 3, 2015 @ 12:35 PM | Reply

    • Until about 1986, NSIDC only measured every other day. I wrestle with the idea of using infilled data for the records. But technically there sometimes was no measurement ….

      Comment by sunshinehours1 — March 3, 2015 @ 2:41 PM | Reply

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