Articles | Volume 6, issue 3
https://doi.org/10.5194/esurf-6-583-2018
https://doi.org/10.5194/esurf-6-583-2018
Research article
 | 
25 Jul 2018
Research article |  | 25 Jul 2018

Evidence of, and a proposed explanation for, bimodal transport states in alluvial rivers

Kieran B. J. Dunne and Douglas J. Jerolmack

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Cited articles

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Short summary
What controls the size and shape of a river – its width, depth, and slope? The cross-sectional channel geometry of gravel-bedded rivers is understood to be a function of the river's fluid shear stress and the weight of the average particle on its bed; however, there is no satisfactory explanation for sand-bedded rivers. We analyze global datasets and individual river profiles and propose that accounting for riverbank cohesion could allow for an explanation for sand-bedded river channel geometry.