Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 14, issue 3
Articles | Volume 14, issue 3
https://doi.org/10.5194/esurf-14-469-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-14-469-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 3
Research article
 | 
24 Jun 2026
Research article |  | 24 Jun 2026

Grain roughness controls on velocity and bed stress fields around a fully protruding obstacle in supercritical flow

Angel Monsalve and Oscar Link

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Short summary
Mountain rivers create fast-flowing water that behaves differently around obstacles compared to slower flows. We used computer simulations and digital bed representation to study how rough riverbeds affect water flow. Our research shows individual grains completely change water movement, creating chaotic patterns instead of organized flows. This makes forces on riverbeds much more variable than previously thought, important for understanding how mountain rivers shape landscapes.
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