Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 29, issue 9
Articles | Volume 29, issue 9
https://doi.org/10.5194/hess-29-2219-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-29-2219-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 29, issue 9
Research article
 | 
15 May 2025
Research article |  | 15 May 2025

Seasonal ice storage changes and meltwater generation at Murtèl rock glacier (Engadine, eastern Swiss Alps): estimates from measurements and energy budgets in the coarse blocky active layer

Dominik Amschwand, Seraina Tschan, Martin Scherler, Martin Hoelzle, Bernhard Krummenacher, Anna Haberkorn, Christian Kienholz, Lukas Aschwanden, and Hansueli Gubler

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Short summary
Meltwater from rock glaciers, frozen landforms of debris and ice, has gained attention in dry mountain regions. We estimated how much ice melts in Murtèl rock glacier (Swiss Alps) based on belowground heat flow measurements and observations of the rising and falling ground-ice table. We found seasonal aggradation and melt of 150–300 mm w.e. (20 %–40 % of the snowpack). The ice (largely sourced from refrozen snowmelt) melts in hot summer periods, infiltrates, and recharges groundwater.
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