Is the sea ice as big as it should be this year?



  1. 0 Votes

    I’m not sure about up-to-today results, but I found a 2009 report by the US National Oceanic and Atmospheric Administration. Both the March and September (maximum and minimum extent of sea ice, respectively) maps show a decrease in ice cover compared to the 1979-2000 average. Although fairly minor in March, the decrease is very noticeable in September (over -25%), which is consistent with the average trends of -2.5% and -8,9% per decade (respectively) decreases. There has also been decreasing ice thickness and amount of multiyear ice, although that data does not include 2009. I’m guessing it’s a little early and the data has not been analyzed yet.

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