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Water 2010, 2(3), 363-380;

The Occurrence of Cold Spells in the Alps Related to ClimateChange

Department of General Physics “Amedeo Avogadro”, University of Torino, Via Pietro Giuria 1 10125, Torino (TO), Italy
Department of Environmental Science and Engineering, Severe Storm Research Center and Center for Climate/Environment Change Prediction Research, Ewha Womans University, Seoul 120-750, Korea
Author to whom correspondence should be addressed.
Received: 23 June 2010 / Revised: 27 July 2010 / Accepted: 27 July 2010 / Published: 2 August 2010
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Climate change is not only a likely prospect for the end of this century, but it is already occurring. Part of the changes will include global warming and increasing temperature variability, both at global and regional scales. This increased variability was investigated in this paper from the point of view of the occurrence of cold spells in the Alps in the future climate (2071–2100), compared with the present climate (1961–1990). For this purpose, a regionalisation of the climate change effects was performed within the Alps. To avoid possible errors in the estimate of the 2m air temperature, the analysis was performed on the soil surface temperature. To get realistic values for this variable, a land surface scheme, UTOPIA, has been run on the selected domain, using the output of the Regional Climate Model (RegCM3) simulations as the driving force. The results show that, in general, the number of cold breaks is decreasing over the Alps, due to the temperature increment. However, there are certain zones where the behaviour is more complicated. The analysis of the model output also allowed a relationship to be found between the number of cold breaks and their duration. The significance of these results over the whole area was assessed. View Full-Text
Keywords: cold spells; climate change; LSPM; UTOPIA; climate extremes cold spells; climate change; LSPM; UTOPIA; climate extremes

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Galli, M.; Oh, S.; Cassardo, C.; Park, S.K. The Occurrence of Cold Spells in the Alps Related to ClimateChange. Water 2010, 2, 363-380.

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