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

International audience 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 wa...

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Bibliographic Details
Main Authors: Haeberli, Wilfried, Magnin, Florence, Linsbauer, Andreas
Other Authors: Environnements, Dynamiques et Territoires de Montagne (EDYTEM), Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)
Format: Conference Object
Language:English
Published: HAL CCSD 2018
Subjects:
global warming
mountain permafrost
glacier beds
new lakes
rock/ice avalanches
natural hazards
[SDE.ES]Environmental Sciences/Environment and Society
[SDE]Environmental Sciences
[SDE.MCG]Environmental Sciences/Global Changes
Cold Mountain
New Lakes
Ice
permafrost
Online Access:https://hal.science/hal-03337508
https://hal.science/hal-03337508/document
https://hal.science/hal-03337508/file/EUCOP2018_Haeberli.pdf
Description
Summary:International audience 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.

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