Université de Fribourg

Decadal evolution of a very small heavily debris-covered glacier in an Alpine permafrost environment

Capt, M. ; Bosson, Jean-Baptiste ; Fischer, M. ; Micheletti, N. ; Lambiel, Christophe

In: Journal of Glaciology, 2016, vol. 62, no. 233, p. 535–551

Glacier response to climate forcing can be heterogeneous and complex, depending on glacier system characteristics. This article presents the decadal evolution of the Tsarmine Glacier (Swiss Alps), a very small and heavily debris-covered cirque glacier located in the Alpine periglacial belt. Archival aerial photogrammetry and autocorrelation of orthophotos were used to compute surface...

Université de Fribourg

Geomorphology of the Hérens valley (Swiss Alps)

Lambiel, Christophe ; Maillard, Benoît ; Kummert, Mario ; Reynard, Emmanuel

In: Journal of Maps, 2016, vol. 12, no. 1, p. 160–172

This paper presents a geomorphological map of the Hérens valley in the Western Swiss Alps. With an area of 270 km2 and altitudes ranging from 470 to 4357 m a.s.l., this valley is one of the main secondary catchments of the Upper Rhône valley. The high differences in altitudes, combined with a varied geology, create an important geomorphic diversity. The main processes active in mountain...

Université de Fribourg

Internal structure and permafrost distribution in two alpine periglacial talus slopes, Valais, Swiss Alps

Scapozza, Cristian ; Lambiel, Christophe ; Baron, Ludovic ; Marescot, Laurent ; Reynard, Emmanuel

In: Geomorphology, 2011, vol. 132, no. 3-4, p. 208-221

In order to determine the spatial extension and the characteristics of permafrost within alpine talus slopes, two sites located in the western part of the Swiss Alps were studied using borehole drilling and electrical resistivity tomography (ERT) profiles. Three boreholes were drilled along an upslope–downslope transect in both talus slopes. In both sites, frozen sediments are present only in...

Médiathèque Valais

Pour un inventaire des géotopes du canton du Valais

Lugon, Ralph ; Reynard, Emmanuel

In: Bulletin de la Murithienne, 2003, no. 121, p. 83-97

Médiathèque Valais

Paravalanches sur deux pentes instables dans le pergélisol valaisan

Philips, Marcia

In: Bulletin de la Murithienne, 2002, no. 120, p. 19-24

Concerne: le Mont Dolin (Arolla) et Wisse Schijen (Randa).