Autogenic Formation of Bimodal Grain Size Distributions in Rivers and Its Contribution to Gravel‐Sand Transitions

Autogenic Formation of Bimodal Grain Size Distributions in Rivers and Its Contribution to Gravel‐Sand Transitions

Abstract Riverbeds often fine downstream, with a gravel‐bedded reach, a relatively abrupt gravel‐sand transition (GST), and a sand‐bedded reach. Underlying this behavior, bed grain size distributions are often bimodal, with a relative paucity (gap) around the range 1–5 mm. There is no general morpho...

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Bibliographic Details
Main Authors: Chenge An, Gary Parker, Jeremy G. Venditti, Michael P. Lamb, Marwan A. Hassan, Hiroshi Miwa, Xudong Fu
Format: Article
Language:English
Published: Wiley 2024-09-01
Series:Geophysical Research Letters
Subjects:
bimodality
gravel‐sand transition
bedload
suspended load
grain size distribution
Online Access:https://doi.org/10.1029/2024GL109109
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