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Acoustic measurements of boundary layer flux profiles over a sandy rippled bed under regular waves

By D. Peter Thorne, David Hurther, Benjamin D. Moate, Richard Cooke and X. Francois Chassagne


The study of boundary layer sediment transport processes requires contemporaneous measurements of the bedforms, the flow and the sediment movement. Obtaining these three parameters, at the required temporal-spatial resolutions, has been traditionally difficult, especially within a few centimetres of the bed. To circumvent some of the deployment of an acoustic backscatter system, ABS, an acoustic ripple profiler, ARP, and an acoustic Doppler velocity profiler, ADVP, to measure sediment entrainment processes above a rippled bed under regular waves. High resolution acoustic observations of the suspend sediment concentration, flow and bedforms have been collected. Here we report on some of the initial results obtained from this study

Topics: Marine Sciences
Publisher: Foundation for Research & Technology
Year: 2009
OAI identifier:

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