snow precipitation and snow cover climatic variability for the period 1971–2009 in the southwestern italian alps the 2008–2009 snow season case study降雪和积雪气候变化的1971 - 2009年期间意大利阿尔卑斯山脉西南2008 - 2009雪季的案例研究.pdf

Water 2010, 2, 773-787; doi:10.3390/w2040773 OPEN ACCESS water ISSN 2073-4441 /journal/water Article Snow Precipitation and Snow Cover Climatic Variability for the Period 1971–2009 in the Southwestern Italian Alps: The 2008–2009 Snow Season Case Study Silvia Terzago 1,*, Claudio Cassardo 2,3, Roberto Cremonini 4 and Simona Fratianni 1 1 Department of Earth Sciences, University of Torino, Via Valperga Caluso, 35-10125 Torino, Italy; E-Mail: simona.fratianni@unito.it 2 Department of General Physics “A. Avogadro”, University of Torino, Via Giuria, 1-10125 Torino, Italy; E-Mail: claudio.cassardo@unito.it 3 CINFAI, National Inter-University Consortium for Physics of the Atmosphere and Hydrosphere, 1- 10121Turin, Italy 4 Regional Agency for Environmental Protection (ARPA) of Piemonte, Via Pio VII, 9-10135 Torino, Italy; E-Mail: r.cremonini@arpa.piemonte.it * Author to whom correspondence should be addressed; E-Mail: silvia.terzago@unito.it; Tel.: +39-011-670-5102; Fax: +39-011-670-5146. Received: 8 September 2010; in revised form: 7 October 2010 / Accepted: 17 October 2010 / Published: 19 October 2010 Abstract: Snow cover greatly influences the climate in the Alpine region and is one of the most relevant parameters for the climate change analysis. Nevertheless, snow precipitation variability is a relatively underexplored field of research because of the lack of long-term, continuous and homogeneous time series. After a historical research aiming to recover continuous records, three high