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Proceedings Paper

Optical monitoring study on estuarine sediment incipient under marine hydrodynamic
Author(s): Hao Qin; Shucai Li; Lei Zhang
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Paper Abstract

For the deserted estuary without sediment inflow, ocean hydrodynamic has become the main force for coastal erosion. This paper utilizes wave-tide gauge and current meter to monitor the hydrodynamic within the experimental area and also, turbidity meter is used to conduct indirect monitoring to the sediment concentration (the corresponding relation between the turbidity value and the content of suspended particles in the water is pre-calibrated indoors). Statistical means is adopted to calculate the correlativity between the turbidity and hydropower factors, such as wave height, tide height and flow meter which are determined on site and then the determining factors for sediment incipient are obtained. The conclusion is that the eddy and turbulent flow caused by broken wave constitute the main dynamic factors for the sediment incipient and the incipient velocity mainly comes from the flow rate of the eddy and turbulence resulting from the broken wave.

Paper Details

Date Published: 14 April 2010
PDF: 6 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75225Y (14 April 2010); doi: 10.1117/12.848426
Show Author Affiliations
Hao Qin, Shandong Univ. (China)
Shucai Li, Shandong Univ. (China)
Lei Zhang, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 7522:
Fourth International Conference on Experimental Mechanics
Chenggen Quan; Kemao Qian; Anand Krishna Asundi; Fook Siong Chau, Editor(s)

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