Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 13, issue 6
Articles | Volume 13, issue 6
https://doi.org/10.5194/esurf-13-1181-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-13-1181-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 6
Research article
 | 
07 Nov 2025
Research article |  | 07 Nov 2025

A novel acoustic bedload monitoring system with phased microphone arrays and an accelerometer for particle localization and size estimation

Zheng Chen, Siming He, Alexandre Badoux, and Dieter Rickenmann

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Short summary
We designed a novel surrogate bedload monitoring system that integrates phased microphone arrays and an accelerometer for enhanced performance. By combining beamforming-based localization with amplitude calibration, we demonstrate a viable approach to enhance the reliability of bedload measurements. These findings address the key question of whether impact-based acoustic systems can be refined to provide more accurate particle size estimates and offer conceptual and methodological advances.
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