Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 13, issue 3
Articles | Volume 13, issue 3
https://doi.org/10.5194/esurf-13-437-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-13-437-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 3
Research article
 | 
06 Jun 2025
Research article |  | 06 Jun 2025

Investigating the celerity of propagation for small perturbations and dispersive sediment aggradation under a supercritical flow

Hasan Eslami, Erfan Poursoleymanzadeh, Mojtaba Hiteh, Keivan Tavakoli, Melika Yavari Nia, Ehsan Zadehali, Reihaneh Zarrabi, and Alessio Radice

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Latest update: 28 Oct 2025
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Short summary
A channel may be aggraded by overloaded sediment. In this study we realize an aggradation experiment and determine the celerity at which an aggradation wave, due to sediment overloading, migrates. We also investigate the celerity of small perturbations, as quantified by mathematical formulations. The celerities of the two kinds are correlated with each other. However, the celerity of small perturbations is larger than the other one, which is less than a few percent of the water velocity.
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