Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 8, issue 3
Articles | Volume 8, issue 3
https://doi.org/10.5194/esurf-8-717-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-8-717-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 8, issue 3
Short communication
 | 
31 Aug 2020
Short communication |  | 31 Aug 2020

Short communication: Field data reveal that the transport probability of clasts in Peruvian and Swiss streams mainly depends on the sorting of the grains

Fritz Schlunegger, Romain Delunel, and Philippos Garefalakis

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Short summary
We calculated the probability of sediment transport in coarse-grained mountainous streams in the Alps and the Andes where data on water discharge is available. We find a positive correlation between the predicted probability of sediment transport and the grain size sorting of the bed material. We suggest that besides sediment discharge, the bedload sorting exerts a significant influence on the mobility of sediment and thus on the stability of gravel bars in mountainous streams.
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