Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8762
Authors: Zampieri, M.* 
Scoccimarro, E.* 
Gualdi, S.* 
Title: Atlantic influence on spring snowfall over the Alps in the past 150 years
Issue Date: Aug-2013
Series/Report no.: /8 (2013)
DOI: 10.1088/1748-9326/8/3/034026
URI: http://hdl.handle.net/2122/8762
Keywords: AMO
snow
alps
Subject Classification01. Atmosphere::01.01. Atmosphere::01.01.02. Climate 
Abstract: Global warming is believed to be responsible for the reduction of snow amount and duration over the Alps. In fact, a rapid shortening of the snowy season has been measured and perceived by ecosystems and society in the past 30 years, despite the large year-to-year variability. This trend is projected to continue during the 21st century in the climate change scenarios with increasing greenhouse gas concentrations. Superimposed on the long-term trend, however, there is a low-frequency variability of snowfall associated with multi-decadal changes in the large-scale circulation. The amplitude of this natural low-frequency variation might be relatively large, determining rapid and substantial changes of snowfall, as recently observed. This is already known for winter snowfall over the Alps in connection with the recent tendency toward the positive phase of the North Atlantic Oscillation. In this study, we show that the low-frequency variability of Alpine spring snowfall in the past 150 years is affected by the Atlantic Multi-decadal Oscillation (AMO), which is a natural periodic fluctuation of Northern Atlantic sea surface temperature. Therefore, the recently observed spring snowfall reduction might be, at least in part, explained by the shift toward a positive AMO phase that happened in the 1990s.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
zampieri_erl_2013.pdfmain article2.25 MBAdobe PDFView/Open
Show full item record

Page view(s)

142
Last Week
0
Last month
0
checked on Sep 23, 2018

Download(s)

19
checked on Sep 23, 2018

Google ScholarTM

Check

Altmetric