Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 25, issue 12
Articles | Volume 25, issue 12
https://doi.org/10.5194/nhess-25-4941-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-25-4941-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 12
Research article
 | 
12 Dec 2025
Research article |  | 12 Dec 2025

Identification of rainfall thresholds for debris-flow occurrence through field monitoring data

Elena Ioriatti, Mauro Reguzzoni, Edoardo Reguzzoni, Andreas Schimmel, Luca Beretta, Massimo Ceriani, and Matteo Berti

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Short summary
We propose a new method to define rainfall thresholds for debris flows and increased stream activity. Developed in an Alpine catchment, it relies on monitoring data and is suited to early warning in data-scarce settings with few recorded debris-flow events. The study examines sensitivity to rain-gauge placement and to the criteria used to define rainfall events.
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