Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 8
Articles | Volume 26, issue 8
https://doi.org/10.5194/nhess-26-3901-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-3901-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 8
Research article
 | 
18 Aug 2026
Research article |  | 18 Aug 2026

Potential glacier contributions to the 2024 La Bérarde flood

Christophe Ogier, Mauro A. Werder, Olivier Gagliardini, Ilaria Santin, Raphael Moser, Romain Hugonnet, Antoine Blanc, and Daniel Farinotti

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Short summary
In June 2024, a destructive flood impacted the village of La Bérarde in the French Alps. Rain, snowmelt, and the drainage of a surface lake on a glacier cannot fully explain the flood magnitude. We used glacier topography to estimate how much water could also have been stored beneath the glacier before the event. Our results show that large volumes of hidden water may have existed and could have amplified the flood, highlighting an overlooked hazard in debris-covered mountain glaciers.
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