Articles | Volume 20, issue 2
Nat. Hazards Earth Syst. Sci., 20, 505–520, 2020
https://doi.org/10.5194/nhess-20-505-2020
Nat. Hazards Earth Syst. Sci., 20, 505–520, 2020
https://doi.org/10.5194/nhess-20-505-2020

Research article 21 Feb 2020

Research article | 21 Feb 2020

Back calculation of the 2017 Piz Cengalo–Bondo landslide cascade with r.avaflow: what we can do and what we can learn

Martin Mergili et al.

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Cited articles

Amann, F., Kos, A., Phillips, M., and Kenner, R.: The Piz Cengalo Bergsturz and subsequent debris flows, Geophys. Res. Abstr., 20, 14700, 2018. 
Amt für Wald und Naturgefahren: Bondo: Chronologie der Ereignisse, 2 pp., available at: https://www.gr.ch/DE/institutionen/verwaltung/bvfd/awn/dokumentenliste_afw/20170828_Chronologie_Bondo_2017_12_13_dt.pdf (last access: 31 May 2019), 2017. 
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Bonanomi, Y. and Keiser, M.: Bericht zum aktuellen Bergsturz am Piz Cengalo 2017, Bergeller Alpen im Engadin, 19, Geoforum Umhausen, 19–20 Oktober 2017, 55–60, 2017. 
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Short summary
Computer simulations of complex landslide processes in mountain areas are important for informing risk management but are at the same time challenging in terms of parameterization and physical and numerical model implementation. Using the tool r.avaflow, we highlight the progress and the challenges with regard to such simulations on the example of the Piz Cengalo–Bondo landslide cascade in Switzerland, which started as an initial rockslide–rockfall and finally evolved into a debris flow.
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