Environment News Network: Loss of sea ice that is more than a year old -- called perennial ice -- may be the key predictor for how much Arctic ice melts each summer, a
A paper being published online today by Geophysical Research Letters, says perennial sea ice covering the Arctic Ocean decreased by 23 percent during the past two winters as strong winds swept more Arctic ice than usual out Fram Strait near Greenland. The study relied on 50 years of data from the International Arctic Buoy Program, currently directed by Ignatius Rigor of the UW's Applied Physics Laboratory, and eight years of data from NASA's QuikScat satellite, a review of which was led by Son Nghiem of NASA's Jet Propulsion Laboratory.
"The most important thing about this paper is that it foretells this summer's record minimum ice extent in the
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