Articles | Volume 9, issue 3
Earth Surf. Dynam., 9, 423–444, 2021
https://doi.org/10.5194/esurf-9-423-2021
Earth Surf. Dynam., 9, 423–444, 2021
https://doi.org/10.5194/esurf-9-423-2021

Research article 27 May 2021

Research article | 27 May 2021

Relevance of acoustic methods to quantify bedload transport and bedform dynamics in a large sandy-gravel-bed river

Jules Le Guern et al.

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Cited articles

Banhold, K., Schüttrumpf, H., Hillebrand, G., and Frings, R.: Underestimation of sand loads during bed-load measurements- a laboratory examination, in: Proceedings of the international conference on Fluvial Hydraulics (River Flow 2016), 11–14 July 2016, Saint Louis, USA, 2406 pp., 2016. 
Barton, J., Slingerland, R. R. L., Pittman, S., and Gabrielson, T. B.: Monitoring coarse bedload transport with passive acoustic instrumentation: A field study, in: Bedload-surrogate monitoring technologies:, edited by: Gray, J. R., Laronne, J. B., and Marr, J. D. G., US Geol. Surv. Sci. Investig. Rep., 38–51, available at: https://pubs.usgs.gov/sir/2010/5091/papers/Barton.pdf (last access: 25 May 2021), 2010. 
Batalla, R. J.: Evaluation bed-material transport equations using field measurements in a sandy gravel-bed stream, Arbùcies River, NE Spain, Earth Surf. Proc. Land., 22, 121–130, https://doi.org/10.1002/(SICI)1096-9837(199702)22:2<121::AID-ESP671>3.0.CO;2-7, 1997. 
Bedeus, K. and Ivicsics, L.: Observation of the noise of bed load, in: Gen. Assem. Comm. Hydrom. Int. Assoc. Hydrol. Sci., Berkeley, CA, USA, 19–31, 1963. 
Bertoldi, W., Ashmore, P., and Tubino, M.: A method for estimating the mean bed load flux in braided rivers, Geomorphology, 103, 330–340, https://doi.org/10.1016/j.geomorph.2008.06.014, 2009. 
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Short summary
Despite the inherent difficulties in quantifying its value, sediment transport is essential to understanding fluvial systems. This study tries to improve the measurement by comparing several methods. Acoustic methods are compared to direct measurements with samplers. The hydrophone is well adapted to quantify sediment transport in mountain streams, but this study shows the potential and the efficiency of this device in large lowland rivers.