First archive of daily snow depth observations for the Alps and analysis of trends 1971 to 2019. The first unified and harmonized database of daily snow depth series from more than 2000 measurement sites in the European Alps was set up thanks to the collaboration of more than 30 researchers from six Alpine countries (Austria, France, Germany, Italy, Slovenia and Switzerland). Data processing and quality checks were applied consistently to all snow records and the resulting database was used to investigate the spatial variability of snow depth trends over the last five decades in the Alpine region. The trends largely differ over regions and elevations preventing the generalization of results from one station or region to the whole Alps. However, the monthly snow depth shows a decreasing trend in the majority of sites, especially in spring, with an average decrease of seasonal mean snow depth (November to May) of -8,4% per decade. The largest snow depth decreases were observed in the southern Alps. Maximum snow depth values also experienced significant reductions in most areas and the snow season has shortened in the range of 20-30 days below 2000 meters since 1971. The negative trends can be mostly explained by the rising temperature and the related shift from solid to liquid precipitation.

Il primo archivio di osservazioni giornaliere di altezza neve al suolo nell’arco alpino: analisi delle tendenze dal 1971 al 2019 / Crespi, Alice; Matiu, Michael; Bertoldi, Giacomo; Cat Berro, Daniele; Cianfarra, Paola; Majone, Bruno; Mercalli, Luca; Valt, Mauro. - In: NIMBUS. - ISSN 1122-4339. - ELETTRONICO. - 85:(2021), pp. 8-21.

Il primo archivio di osservazioni giornaliere di altezza neve al suolo nell’arco alpino: analisi delle tendenze dal 1971 al 2019

Matiu, Michael;Majone, Bruno;
2021-01-01

Abstract

First archive of daily snow depth observations for the Alps and analysis of trends 1971 to 2019. The first unified and harmonized database of daily snow depth series from more than 2000 measurement sites in the European Alps was set up thanks to the collaboration of more than 30 researchers from six Alpine countries (Austria, France, Germany, Italy, Slovenia and Switzerland). Data processing and quality checks were applied consistently to all snow records and the resulting database was used to investigate the spatial variability of snow depth trends over the last five decades in the Alpine region. The trends largely differ over regions and elevations preventing the generalization of results from one station or region to the whole Alps. However, the monthly snow depth shows a decreasing trend in the majority of sites, especially in spring, with an average decrease of seasonal mean snow depth (November to May) of -8,4% per decade. The largest snow depth decreases were observed in the southern Alps. Maximum snow depth values also experienced significant reductions in most areas and the snow season has shortened in the range of 20-30 days below 2000 meters since 1971. The negative trends can be mostly explained by the rising temperature and the related shift from solid to liquid precipitation.
2021
Crespi, Alice; Matiu, Michael; Bertoldi, Giacomo; Cat Berro, Daniele; Cianfarra, Paola; Majone, Bruno; Mercalli, Luca; Valt, Mauro
Il primo archivio di osservazioni giornaliere di altezza neve al suolo nell’arco alpino: analisi delle tendenze dal 1971 al 2019 / Crespi, Alice; Matiu, Michael; Bertoldi, Giacomo; Cat Berro, Daniele; Cianfarra, Paola; Majone, Bruno; Mercalli, Luca; Valt, Mauro. - In: NIMBUS. - ISSN 1122-4339. - ELETTRONICO. - 85:(2021), pp. 8-21.
File in questo prodotto:
File Dimensione Formato  
Crespi_et_al_2021_Nimbus85_Neve.pdf

Solo gestori archivio

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 4.55 MB
Formato Adobe PDF
4.55 MB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/320811
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact