Modeling permafrost occurrence, glacier-bed topography and possible future lakes for assessing changing hazard conditions in cold mountain regions

Wilfried Haeberli , Florence Magnin (1) , Andreas Linsbauer

1 EDYTEM - Environnements, Dynamiques et Territoires de Montagne

The rapid transformation of glacial into periglacial mountain landscapes under conditions of continued global warming can cause new and locally severe changes in hazard and risk conditions. A special focus must be on systematically increasing risks due to far-reaching flood waves or debris flows caused by rock/ice avalanches into new lakes at the foot of steep slopes with decreasing stability due to permafrost degradation and/or glacial de-buttressing. Modeling permafrost occurrence and glacier-bed topography provides important information for anticipating critical future situations.

Mots clés: global warming; mountain permafrost; glacier beds; new lakes; rock/ice avalanches; natural hazards

Domaines: Environnement et Société; Sciences de l'environnement; Milieux et Changements globaux

Wilfried Haeberli, Florence Magnin, Andreas Linsbauer. Modeling permafrost occurrence, glacier-bed topography and possible future lakes for assessing changing hazard conditions in cold mountain regions. 5th European Conference On Permafrost, Jun 2018, Chamonix, France. ⟨hal-03337508⟩