Université de Fribourg

Assessing the rock glacier kinematics on three different timescales: a case study from the southern Swiss Alps

Scapozza, Cristian ; Lambiel, Christophe ; Bozzini, Claudio ; Mari, Stefano ; Conedera, Marco

In: Earth Surface Processes and Landforms, 2014, vol. 39, no. 15, p. 2056–2069

Surface temperature increases since the 1990s have often been associated with an increase in the speed of rock glaciers. Evidence of similar links on the centennial to millennial scale are, however, still lacking due to less focus to date on the medium- and long-term kinematics of these landforms. In order to assess (palaeo)climatic variations in rock glacier kinematics, we analysed the movements...

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...

Université de Lausanne

Contribution à l'étude géomophologique et géophysique des environnements périglaciaires des Alpes Tessinoises orientales

Scapozza, Cristian ; Lambiel, Christophe (Dir.) ; Gex, Pierre (Codir.)

Mémoire de master : Université de Lausanne, 2008.

Dans le contexte d’un climat de plus en plus chaud, l’étude de la répartition du permafrost dans tous les contextes morphoclimatiques des Alpes s’avère primordiale. S’insérant dans cette problématique, ce travail de mémoire a pour but l’étude des environnements périglaciaires du Sud des Alpes Suisses selon deux axes de recherche différents. D’un point de vue géographique,...