Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 13, issue 2
Articles | Volume 13, issue 2
https://doi.org/10.5194/esurf-13-295-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-13-295-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 2
Research article
 | 
03 Apr 2025
Research article |  | 03 Apr 2025

Decadal in situ hydrological observations and empirical modeling of pressure head in a high-alpine, fractured calcareous rock slope

Riccardo Scandroglio, Samuel Weber, Till Rehm, and Michael Krautblatter

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Short summary
Despite the critical role of water in alpine regions, its presence in bedrock is frequently neglected. This research examines the dynamics of water in fractures using 1 decade of measurements from a tunnel 50 m underground. We provide new insights into alpine groundwater dynamics, revealing that up to 800 L d-1 can flow in one fracture during extreme events. These quantities can saturate the fractures, enhance hydraulic conductivity, and generate pressures that destabilize slopes.
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