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

Thorne, Peter, D.; Hurther, David; Moate, Benjamin D.; Cooke, Richard; Chassagne, Francois, X.. 2009 Acoustic measurements of boundary layer flux profiles over a sandy rippled bed under regular waves. Hellas, Greece, Foundation for Research & Technology, 517-524, 8pp. (Underwater Acoustic Measurements: Technologies & Results 3rd International conference and Exhibition, Nafplion, Greece, 21st June - 26th June 2009 Proceedings, 1).

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Abstract/Summary

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.

Item Type: Publication - Book
Programmes: Oceans 2025 > Shelf and coastal processes
Additional Keywords: ACOUSTIC; BACKSCATTERING; DOPPLER; VELOCITY; SEDIMENTS; RIPPLES; BEDFORMS
NORA Subject Terms: Marine Sciences
Date made live: 06 May 2010 11:35
URI: http://nora.nerc.ac.uk/id/eprint/9761

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