Impact of climate change on hydro-meteorological trigger conditions for debris flows in Austria

Roland Kaitna*, David Prenner, Matt Switanek, Markus Stoffel, Douglas Maraun, Markus Hrachowitz

*Corresponding author for this work

Research output: Contribution to journalConference articleScientificpeer-review

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Abstract

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.

Original languageEnglish
Article number05011
Number of pages3
JournalE3S Web of Conferences
Volume415
DOIs
Publication statusPublished - 2023
Event8th International Conference on Debris Flow Hazard Mitigation (DFHM8) - Politecnico di Torino, Torino, Italy
Duration: 26 Jun 202329 Jun 2023
http://dfhm8.polito.it/

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