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Author: DrBob2 Big funky green star, 20000 posts Old School Fool Add to my Favorite Fools Ignore this person (you won't see their posts anymore) Number: of 59048  
Subject: Re: Sad, really... Date: 2/11/2013 6:58 AM
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IIRC, over the last 40 years there is no significant trend in northern hemisphere snow cover. In addition, there is decadal variability. For example in a study of Alpine snowfall since 1864, Scherrer et al. write:

"Our results reveal large decadal variability with phases of low and high values for NSS, DWSF and DWSP [New Snow Sums, Days with Snowfall, Days with Snow Pack]. For most stations NSS, DWSF and DWSP show the lowest values recorded and unprecedented negative trends in the late 1980s and 1990s....The fraction of NSS and DWSP in different seasons (autumn, winter and spring) has changed only slightly over the ~150?year record. Some decreases most likely attributable to temperature changes in the last 50?years are found for spring, especially for NSS at low stations. Both the NSS and DWSP snow indicators show a trend reversal in most recent years (since 2000), especially at low and medium altitudes. This is consistent with the recent ‘plateauing’ (i.e. slight relative decrease) of mean winter temperature in Switzerland and illustrates how important decadal variability is in understanding the trends in key snow indicators."

Snow variability in the Swiss Alps 1864–2009
http://onlinelibrary.wiley.com/doi/10.1002/joc.3653/abstract...

DB2
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