Articles | Volume 24, issue 3
https://doi.org/10.5194/nhess-24-1035-2024
https://doi.org/10.5194/nhess-24-1035-2024
Research article
 | 
28 Mar 2024
Research article |  | 28 Mar 2024

Comparison of debris flow observations, including fine-sediment grain size and composition and runout model results, at Illgraben, Swiss Alps

Daniel Bolliger, Fritz Schlunegger, and Brian W. McArdell

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Cited articles

Abraham, M. T., Satyam, N., Peddholla Reddy, S. K., and Pradhan, B.: Runout modeling and calibration of friction parameters of Kurichermala debris flow, India, Landslides, 18, 737–754, https://doi.org/10.1007/s10346-020-01540-1, 2020. 
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Badoux, A., Graf, C., Rhyner, J., Kuntner, R., and McArdell, B. W.: A debris-flow alarm system for the Alpine Illgraben catchment: Design and performance, Nat. Hazards, 49, 517–539, https://doi.org/10.1007/s11069-008-9303-x, 2009. 
Barshad, I.: Absorptive and swelling properties of clay-water system, Clay Miner., 1, 70–77, 1952. 
Bartelt, P., Valero, C. V., Feistl, T., Christen, M., Bühler, Y., and Buser, O.: Modelling cohesion in snow avalanche flow, J. Glaciol., 61, 837–850, https://doi.org/10.3189/2015JoG14J126, 2015. 
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Short summary
We analysed data from the Illgraben debris flow monitoring station, Switzerland, and we modelled these flows with a debris flow runout model. We found that no correlation exists between the grain size distribution, the mineralogical composition of the matrix, and the debris flow properties. The flow properties rather appear to be determined by the flow volume, from which most other parameters can be derived.
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