Articles | Volume 24, issue 5
https://doi.org/10.5194/nhess-24-1607-2024
https://doi.org/10.5194/nhess-24-1607-2024
Research article
 | 
08 May 2024
Research article |  | 08 May 2024

Limited effect of the confluence angle and tributary gradient on Alpine confluence morphodynamics under intense sediment loads

Théo St. Pierre Ostrander, Thomé Kraus, Bruno Mazzorana, Johannes Holzner, Andrea Andreoli, Francesco Comiti, and Bernhard Gems

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Ancey, C.: Bedload transport: A walk between randomness and determinism. part 1. the state of the art, J. Hydraul. Res., 58, 1–17, https://doi.org/10.1080/00221686.2019.1702594, 2020a. 
Ancey, C.: Bedload transport: A walk between randomness and determinism. part 2. challenges and prospects, J. Hydraul. Res., 58, 18–33, https://doi.org/10.1080/00221686.2019.1702595, 2020b. 
Aufleger, M.: Flussmorphologische Modell. Grundlagen und Anwendungsgrenzen. Berichte des Lehrstuhls und der Versuchsanstalt für Wasserbau und Wasserwirtshaft, Band Nr. 104, TU München, 198–207, 2006. 
Aulitzky, H.: Preliminary two-fold classification of debris torrents, in: Vol. 4, Conference Proceedings of Interpraevent 1980, 8–12 September 1980, Bad Ischl, Austria, 285–309, 1980. 
Aulitzky, H.: The debris flows of Austria, Bull. Eng. Geol. Environ., 40, 5–13, https://doi.org/10.1007/BF02590338, 1989. 
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Short summary
Mountain river confluences are hazardous during localized flooding events. A physical model was used to determine the dominant controls over mountain confluences. Contrary to lowland confluences, in mountain regions, the channel discharges and (to a lesser degree) the tributary sediment concentration control morphological patterns. Applying conclusions drawn from lowland confluences could misrepresent depositional and erosional patterns and the related flood hazard at mountain river confluences.
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