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Geophysics
New geophysics findings from National Centers for Environmental Prediction published
December 16th, 2008
According to recent research published in the journal Geophysical Research Letters, "The extreme loss of sea ice over the western Arctic during the boreal summer of 2007 (July-August September) was accompanied by a very unusual atmospheric circulation pattern. Here we show that the anomalous circulation was linked to a leading climate mode of the Northern Hemisphere, the Pacific-North American (PNA) pattern." "The PNA index was three standard deviations above the 1950-2007 mean, and its primary signal in the atmospheric circulation is a strong anomalous anticyclone that was collocated with the location of the greatest Arctic sea ice decline. Therefore, the...
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Source: VerticalNews Physics (2008-12-16)
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