| Issue |
E3S Web of Conf.
Volume 415, 2023
8th International Conference on Debris Flow Hazard Mitigation (DFHM8)
|
|
|---|---|---|
| Article Number | 05011 | |
| Number of page(s) | 3 | |
| Section | Case Studies and Hazard Assessments | |
| DOI | https://doi.org/10.1051/e3sconf/202341505011 | |
| Published online | 18 August 2023 | |
Impact of climate change on hydro-meteorological trigger conditions for debris flows in Austria
1 Institute of Mountain Risk Engineering, University of Natural Resources and Life Sciences, Vienna, Austria
2 Wegener Center for Climate and Global Change, University of Graz, Austria
3 Institute for Environmental Sciences, University of Geneva, Switzerland
4 Water Resources Section, Faculty of Civil Engineering and Geosciences, Delft University of Technology, The Netherlands
* Corresponding author: roland.kaitna@boku.ac.at
Debris-flow activity is expected to change in a future climate. In this study we connect a susceptibility model for debris-flows on a regional scale with climate projections until 2100. We use this to assess changes of hydro-meteorological trigger conditions for debris flows in six regions in the Austrian Alps. We find limited changes on an annual basis, but distinct changes when separating between hydro-meteorological trigger types and regions. While regions in the east and in the south of Austria may experience less days susceptible to debris flows in summer, there is a general trend of increasing susceptibility earlier in the year for both, rainfall-related and snow-related trigger conditions. The outcomes of this study serve as a basis for the development of adaption strategies for future risk management from this debris-flow hazard.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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