Articles | Volume 10, issue 4
Research article
01 Aug 2022
Research article |  | 01 Aug 2022

Effect of debris-flow sediment grain-size distribution on fan morphology

Haruka Tsunetaka, Norifumi Hotta, Yuichi Sakai, and Thad Wasklewicz

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Cited articles

Abele, G.: Bergstürze in den Alpen: Ihre Verbreitung, Morphologie und Folgeerscheinungen (rockfalls in the Alps: distribution, morphology, and impacts), Wissenschaftliche Alpenvereinshefte, 0084-0912, München, 25, 230 pp., 1974. 
Adams, K., Wasklewicz, T., De Haas, T., Lecce, S., and Gares, P.: Reproducibility of debris-flow fan physical modeling experiments, Special Publication 28, Colorado School of Mines, Environmental and Engineering Geologists,, 2019. 
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Short summary
To assess the effects of differences in grain-size distribution within debris flows on the morphology of debris-flow fans, fan morphologies were modeled experimentally. Even if debris flows exhibited similar flow properties, their runout distance differed in response to differences in their grain-size distribution. Differences in runout distance were responsible for variations in the direction of the descending flow that resulted in different debris-flow fan morphology.