Articles | Volume 12, issue 1
https://doi.org/10.5194/esurf-12-117-2024
https://doi.org/10.5194/esurf-12-117-2024
Research article
 | 
11 Jan 2024
Research article |  | 11 Jan 2024

Optimization of passive acoustic bedload monitoring in rivers by signal inversion

Mohamad Nasr, Adele Johannot, Thomas Geay, Sebastien Zanker, Jules Le Guern, and Alain Recking

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Latest update: 23 Apr 2024
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Short summary
Hydrophones are used to monitor sediment transport in the river by listening to the acoustic noise generated by particle impacts on the riverbed. However, this acoustic noise is modified by the river flow and can cause misleading information about sediment transport. This article proposes a model that corrects the measured acoustic signal. Testing the model showed that the corrected signal is better correlated with bedload flux in the river.