Journal article

New insights on permafrost genesis and conservation in talus slopes based on observations at Flüelapass, Eastern Switzerland

  • Kenner, Robert WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
  • Phillips, Marcia WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
  • Hauck, Christian Department of Geosciences University of Fribourg, Switzerland
  • Hilbich, Christin Department of Geosciences University of Fribourg, Switzerland
  • Mulsow, Christian Institute of Photogrammetry and Remote Sensing, Dresden University of Technology, Germany
  • Bühler, Yves WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
  • Stoffel, Andreas WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
  • Buchroithner, Manfred Institute of Cartography, Dresden University of Technology, Germany
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    01.08.2017
Published in:
  • Geomorphology. - 2017, vol. 290, p. 101–113
English The talus slope at Flüelapass was the first mountain permafrost study site in Switzerland in the 1970s and the presence of ice-rich permafrost at the foot of the slope has been investigated in the context of several studies focusing on the role of snow cover distribution. We review previously developed hypotheses and present new ones using various data sources, such as temperature measurements in boreholes, a subaquatic DEM generated from unmanned aerial system (UAS) photogrammetry, terrestrial laser scan measurements of snow depth, geophysical ground investigations and automatic time-lapse photography. From this combination of data sources together with observations in the field, an interesting sequence of geomorphologic processes is established at Flüelapass. As a result we show how mass wasting processes can initiate the genesis and long-term conservation of ice-rich permafrost at the base of a talus slope.
Faculty
Faculté des sciences et de médecine
Department
Département de Géosciences
Language
  • English
Classification
Hydrology
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/305973
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