Determination of warm, sensitive permafrost areas in near-vertical rockwalls and evaluation of distributed models by electrical resistivity tomography.

• Main Authors: Magnin, Florence, Krautblatter, Michael, Deline, Philip, Ravanel, Ludovic, Malet, Emmanuel, Bevington, Alan
• Other Authors: Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS), Geographisches Institut, Rheinische Friedrich-Wilhelms-Universität Bonn, University of Leicester
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2015
• Subjects: [SDE]Environmental Sciences; Mont Blanc; permafrost
• Online Access: https://hal-sde.archives-ouvertes.fr/hal-01778132

Alpine rockwalls with warm permafrost (near 0°C) are the most active rockfall detachment zones in the Mont Blanc massif (MBM, French Alps) with more than 380 recent events. Near-vertical rockwall permafrost is spatially controlled by variations in rock fractures, snow cover and micro-topography. A r...