Articles | Volume 15, issue 2
https://doi.org/10.5194/tc-15-501-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-15-501-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Feb 2021
Research article |
| 02 Feb 2021
| 02 Feb 2021
Modal sensitivity of rock glaciers to elastic changes from spectral seismic noise monitoring and modeling
Antoine Guillemot
CORRESPONDING AUTHOR
Laboratoire ISTerre, Univ. Grenoble Alpes, CNRS, Univ. Savoie Mont Blanc, 38000 Grenoble, France
Laurent Baillet
Laboratoire ISTerre, Univ. Grenoble Alpes, CNRS, Univ. Savoie Mont Blanc, 38000 Grenoble, France
Stéphane Garambois
Laboratoire ISTerre, Univ. Grenoble Alpes, CNRS, Univ. Savoie Mont Blanc, 38000 Grenoble, France
Xavier Bodin
Laboratoire EDYTEM, Univ. Grenoble Alpes, CNRS, Univ. Savoie Mont-Blanc, 73000 Chambéry, France
Agnès Helmstetter
Laboratoire ISTerre, Univ. Grenoble Alpes, CNRS, Univ. Savoie Mont Blanc, 38000 Grenoble, France
Raphaël Mayoraz
Services des Forêts, des Cours d'eau et du Paysage, Canton of Valais, 1951 Sion, Switzerland
Eric Larose
Laboratoire ISTerre, Univ. Grenoble Alpes, CNRS, Univ. Savoie Mont Blanc, 38000 Grenoble, France
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Short summary
Among mountainous permafrost landforms, rock glaciers are composed of boulders, fine frozen materials, water and ice in various proportions. Displacement rates of active rock glaciers can reach several m/yr, contributing to emerging risks linked to gravitational hazards. Thanks to passive seismic monitoring, resonance effects related to seasonal freeze–thawing processes of the shallower layers have been monitored and modeled. This method is an accurate tool for studying rock glaciers at depth.
Among mountainous permafrost landforms, rock glaciers are composed of boulders, fine frozen...
