Solid and liquid precipitation variability in the Western Italian Alps and links to large scale forcings
The evaluation of climate change and its environmental and socio-economical effects in the Alpine region can not prescind from considering variability and trends of solid and liquid precipitation over long periods. In the frame of the interregional project STRADA (ADAptation STRategy to climate chan...
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2011
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ftunivtorino:oai:iris.unito.it:2318/91679 2023-09-05T13:21:38+02:00 Solid and liquid precipitation variability in the Western Italian Alps and links to large scale forcings TERZAGO, SILVIA FRATIANNI, SIMONA ACQUAOTTA, FIORELLA Cremonini R. Terzago S. Fratianni S. Acquaotta F. Cremonini R. 2011 http://hdl.handle.net/2318/91679 eng eng Met Office National Centre for Atmospheric Science country:GBR place:Aviemore ispartofbook:ICAM 2011: Oral presentation abstract 31st International Conference on Alpine Meteorology firstpage:1 lastpage:1 numberofpages:1 http://hdl.handle.net/2318/91679 info:eu-repo/semantics/conferenceObject 2011 ftunivtorino 2023-08-22T22:19:36Z The evaluation of climate change and its environmental and socio-economical effects in the Alpine region can not prescind from considering variability and trends of solid and liquid precipitation over long periods. In the frame of the interregional project STRADA (ADAptation STRategy to climate change) aiming at the long term time series data rescue, daily rainfall and snow precipitation (fresh snow and snow depth) time series recorded in Western Italian Alps manual stations have been recovered and considered for the climatological analysis. The time series are almost continuous except for short gaps which have been filled on monthly and seasonal basis using the Singular Spectrum Analysis technique based on temporal correlation of the time series (Ghil et al., 2001, Kondrashov et al., 2006). The so-obtained time series have been used to determinate and compare the climatological rain and snow indices over different time periods and to investigate on the presence of trends in snow (rain) precipitation amount, number of snowy (wet) days and mean snow depth. The presence of significant oscillatory modes embedded in the seasonal snow (rain) precipitation time series has been investigated using the Singular Spectrum Analysis. The identification of inter-annual and inter-decadal cycles allows to put in relation the snow (rain) precipitation over Western Alps and large scale forcings represented by the North Atlantic Oscillation (NAO) index, the Western Mediterranean Oscillation (WMO) index and the El Nino Southern Oscillation (ENSO) index. The aim is to explore the precipitation variability over different temporal scales in relation to large scale climate modes. Conference Object North Atlantic North Atlantic oscillation Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) |
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Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) |
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ftunivtorino |
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English |
description |
The evaluation of climate change and its environmental and socio-economical effects in the Alpine region can not prescind from considering variability and trends of solid and liquid precipitation over long periods. In the frame of the interregional project STRADA (ADAptation STRategy to climate change) aiming at the long term time series data rescue, daily rainfall and snow precipitation (fresh snow and snow depth) time series recorded in Western Italian Alps manual stations have been recovered and considered for the climatological analysis. The time series are almost continuous except for short gaps which have been filled on monthly and seasonal basis using the Singular Spectrum Analysis technique based on temporal correlation of the time series (Ghil et al., 2001, Kondrashov et al., 2006). The so-obtained time series have been used to determinate and compare the climatological rain and snow indices over different time periods and to investigate on the presence of trends in snow (rain) precipitation amount, number of snowy (wet) days and mean snow depth. The presence of significant oscillatory modes embedded in the seasonal snow (rain) precipitation time series has been investigated using the Singular Spectrum Analysis. The identification of inter-annual and inter-decadal cycles allows to put in relation the snow (rain) precipitation over Western Alps and large scale forcings represented by the North Atlantic Oscillation (NAO) index, the Western Mediterranean Oscillation (WMO) index and the El Nino Southern Oscillation (ENSO) index. The aim is to explore the precipitation variability over different temporal scales in relation to large scale climate modes. |
author2 |
Terzago S. Fratianni S. Acquaotta F. Cremonini R. |
format |
Conference Object |
author |
TERZAGO, SILVIA FRATIANNI, SIMONA ACQUAOTTA, FIORELLA Cremonini R. |
spellingShingle |
TERZAGO, SILVIA FRATIANNI, SIMONA ACQUAOTTA, FIORELLA Cremonini R. Solid and liquid precipitation variability in the Western Italian Alps and links to large scale forcings |
author_facet |
TERZAGO, SILVIA FRATIANNI, SIMONA ACQUAOTTA, FIORELLA Cremonini R. |
author_sort |
TERZAGO, SILVIA |
title |
Solid and liquid precipitation variability in the Western Italian Alps and links to large scale forcings |
title_short |
Solid and liquid precipitation variability in the Western Italian Alps and links to large scale forcings |
title_full |
Solid and liquid precipitation variability in the Western Italian Alps and links to large scale forcings |
title_fullStr |
Solid and liquid precipitation variability in the Western Italian Alps and links to large scale forcings |
title_full_unstemmed |
Solid and liquid precipitation variability in the Western Italian Alps and links to large scale forcings |
title_sort |
solid and liquid precipitation variability in the western italian alps and links to large scale forcings |
publisher |
Met Office National Centre for Atmospheric Science |
publishDate |
2011 |
url |
http://hdl.handle.net/2318/91679 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
ispartofbook:ICAM 2011: Oral presentation abstract 31st International Conference on Alpine Meteorology firstpage:1 lastpage:1 numberofpages:1 http://hdl.handle.net/2318/91679 |
_version_ |
1776202226115543040 |