IGB

Connexion

(Article of periodic en Anglais - 2012)

Document title

The 1975–2005 glacier changes in Aosta Valley (Italy) and the relations with climate evolution

Authors(s) and Affiliation(s)

DIOLAIUTI G.A. (1) ; BOCCHIOLA D. (2) ; VAGLIASINDI M. (3) ; D'AGATA C. (1) ; SMIRAGLIA C. (1) ;
(1) Univ. degli Studi, Milano, ITALIE
(2) Politecnico di Milano, DIIAR, Milano, ITALIE
(3) Fondazione Montagna Sicura, Cabina di Regia dei Ghiacciai Valdostani, Courmayeur, ITALIE

Abstract

Here 3 glacier surface area records (years 1975, 1999 and 2005) available for Aosta Valley (western Italian Alps) have been synthesized. The 1975 data have been collected by previous AA. who compiled the first Aosta Valley regional glacier database. The 1999 and 2005 surface area data were computed by the AA. here combining registered colour orthophotos with differential GPS (DGPS) field measurements. The surface changes of 174 glaciers (those shared within the three records of data) were calculated to describe the recent evolution of a representative subset of Italian glaciers. Aosta Valley glaciers lost 27% of the initial area during 1975-2005. The area change rate accelerated recently (1999-2005). Furthermore, the AA. find increasing temperature especially during late spring and summer, and substantially unchanged total precipitation, with marked reduction of snowfall, snow cover, number of snowfall events and duration of continuous snow cover, especially during spring and summer, likely driving shrinking of glacier coverage

Source

Article of periodic

published at : Progress in physical geography / ISSN 0309-1333 / CODEN PPGEEC

Editor : Sage Publications, London - ROYAUME-UNI (1977)

Millesime : 2012, vol. 36, no6 [pp. 764-785]

Bibliographic references : 2 p.

Collation : 6 fig., 5 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 14648 A

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1177/0309133312456413

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
Refdoc record number (ud4) : 27293934 : Permanent link - XML version
Powered by Pxxo