Mots-clés
Alpes Changement climatique Dynamique de versant Eboulement Haute montagne Italie LiDAR Modèle numérique de terrain Monte Rosa Pergélisol Photogrammétrie Périglaciaire Siècle 20 Série chronologique Télédétection Alps (The) Climatic change Digital elevation model High mountain Italy LiDAR Periglacial features Permafrost Photogrammetry Remote sensing Rockfall Slope dynamics Time series Twentieth Century Alpes Alta montaña Cambio climático Derrumbe Dinámica de vertiente Fotogrametría Italia Modelo numérico de terreno Pergelisol Periglaciar Serie cronológica Siglo 20 TeledetecciónMonitoring topographic changes in a periglacial high-mountain face using high-resolution DTMs, Monte Rosa East Face, Italian Alps
Auteur(s) et Affiliation(s)
FISCHER, L.
Glaciology, Geomorphodynamics and Geochronology, Dept. of Geography, Univ., Zurich, Suisse
EISENBEISS, H.
Inst. of Geodesy and Photogrammetry, ETH, Zurich, Suisse
KÄÄB, A.
Dep. of Geosciences, Univ., Oslo, Norvege
HUGGEL, C.
Glaciology, Geomorphodynamics and Geochronology, Dept. of Geography, Univ., Zurich, Suisse
HAEBERLI, W.
Glaciology, Geomorphodynamics and Geochronology, Dept. of Geography, Univ., Zurich, Suisse
Description :
This paper describes a remote sensing-based approach for detailed topographic investigations in steep periglacial high-mountain faces. The study was conducted in the European Alps, at the permafrost-affected and partially glacierised east face of Monte Rosa. A time series of high-resolution digital terrain models (DTMs) with a 2-m resolution was produced from digital aerial photogrammetry for 1956, 1988 and 2001 and from airborne LiDAR for 2005 and 2007. Analysis of all unstable areas and detachment zones showed that the sequence of the main slope failures is spatially connected and that there is coupling between permafrost bedrock instability and the condition of adjacent hanging glaciers.
Type de document :
Article de périodique
Source :
Permafrost and periglacial processes, issn : 1045-6740, 2011, vol. 22, n°. 2, p. 140-152, nombre de pages : 13, Références bibliographiques : 48 ref.
Date :
2011
Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)