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Arctic sea ice: Nearing record low for October
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NSIDC / Oct 26 2009 coverage
Arctic sea ice coverage is approaching the record minimum of two years ago, according to the latest National Snow and Ice Data Center (NSIDC) data. This is based on 1979-2009 ice coverage plots, so while this is not a lengthy record, ice trends are closely watched as barometers of climate change (be it man-made or natural, I’ll leave that for others to decide).
The trend of ice growth has slowed just as the long arctic winter is getting started. Since most of the Arctic Ocean now has little if any sunlight, and non significant enough to melt sea ice, it will be interesting to see if this slower ice growth trend continues, or if it’s just a “hiccup” in the overall pattern ahead.
The NSIDC issues a monthly statement on Arctic sea ice trends. Another one is due out next week. I’ll be taking a look at what’s new and sharing it with you then.
Circled area highlights the present sea ice coverage compared to the average (upper line) and the record minimum of 2007 (dashed line). The lower two lines nearly intersect, showing that late Oct 2009 coverage is very near this record.
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