Articles | Volume 22, issue 1
Hydrol. Earth Syst. Sci., 22, 767–787, 2018
https://doi.org/10.5194/hess-22-767-2018
Hydrol. Earth Syst. Sci., 22, 767–787, 2018
https://doi.org/10.5194/hess-22-767-2018

Research article 26 Jan 2018

Research article | 26 Jan 2018

Passive acoustic measurement of bedload grain size distribution using self-generated noise

Teodor Petrut et al.

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Cited articles

Akay, A. and Hodgson, T. H.: Acoustic radiation fropm the elastic impact of a sphere with a slab, Appl. Acoust., 11, 285–304, 1978. 
Barrière, J., Krein, A., Oth, A., and Schenkluhn, R.: An advanced signal processing technique for deriving grain size information of bedload transport from impact plate vibration measurements, Earth Surf. Proc. Land., 40, 913–924, https://doi.org/10.1002/esp.3693, 2015. 
Barton, J. S.: Passive Acoustic Monitoring of Coarse Bedload in Mountain Streams, The Pennsylvania State University, College State, USA,, 2006. 
Bedeus, K. and Ivicsis, L.: Observation of the noise of bed load, Int. Assoc. Hydrol. Sci., 19–31, 1963. 
Belleudy, P., Valette, A., and Graff, B.: Passive hydrophone monitoring of bedload in river beds: first trials of signal spectral analyses, USGS, Scientific Investigations Report, 5091, 67–84, Virginia, USA, 2010. 
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Short summary
Our interest is focused on developing the hydrophone technique to estimate the size of particles transported in rivers. The analytic spectral solution of the impact between rigid particles is used to model the power spectrum of a sediment mixture, or the sediment-generated noise. Estimations of grain size distributions in the Isère River using real measured spectra are successfully validated by the physical sampling techniques. Moreover, the grain size sorting process is revealed by acoustics.