Articles | Volume 10, issue 4
https://doi.org/10.5194/esurf-10-775-2022
https://doi.org/10.5194/esurf-10-775-2022
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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Latest update: 26 Feb 2024
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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.