Articles | Volume 19, issue 12
https://doi.org/10.5194/tc-19-6727-2025
https://doi.org/10.5194/tc-19-6727-2025
Research article
 | 
18 Dec 2025
Research article |  | 18 Dec 2025

Thermal diffusivity of mountain permafrost derived from borehole temperature data in the Swiss Alps

Samuel Weber, Andreas Vieli, Marcia Phillips, and Alessandro Cicoira

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Short summary
The properties of the permafrost ground depend on its temperature and composition. We used temperature data from 29 boreholes in Switzerland to study how heat moves through different types of mountain permafrost landforms, supporting a physically meaningful interpretation of thermal properties in terms of ice content, water saturation, and porosity. Understanding changes is important because they can affect how stable mountain slopes are and how easy it is to build things in mountain areas.
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