Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 7, issue 4
Articles | Volume 7, issue 4
https://doi.org/10.5194/esurf-7-1041-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-7-1041-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 7, issue 4
Research article
 | 
29 Nov 2019
Research article |  | 29 Nov 2019

Estimating the disequilibrium in denudation rates due to divide migration at the scale of river basins

Timothée Sassolas-Serrayet, Rodolphe Cattin, Matthieu Ferry, Vincent Godard, and Martine Simoes

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Latest update: 28 Oct 2025
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Short summary
The topographic steady-state assumption is often used in geomorphology. However, recent studies suggest that a drainage network is more mobile than previously thought. Using landscape evolution models, we show that those migrations have a significant impact on basin-wide denudation rates even if an overall topographic steady state is achieved at large scale. Our approach provides new tools to derive minimal uncertainties in basin-scale denudation rates due to this topographic disequilibrium.
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