Record Details

Direct bed stress measurements under solitary tsunami-type waves and breaking tsunami wave fronts

DRS at CSIR-National Institute of Oceanography

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Title Direct bed stress measurements under solitary tsunami-type waves and breaking tsunami wave fronts
 
Creator JayaKumar, S.
Baldock, T.E.
 
Subject hydrodynamics
tsunami
shear stress
shear plate
continental slope
liquefaction
 
Description During their propagation tsunamis often traverse continental slopes that are relatively steep compared to deeper oceans. Further due to the change of bed slope from offshore to near shore, there is every likely possibility that a tsunami might steepen and eventually break, thereby generating large pressure gradients that could enhance the likelihood of liquefaction of the seabed. In the drawdown, high shear stresses could trigger debris flow in submarine canyons and on steep ridges. Therefore estimation of the bed stress is important in estimation of the forces induced during tsunami wave propagation, both on the seabed as well as on the subsurface installations. Bed and shear stresses generated by wave forms that represent tsunami (a solitary wave and broken solitary wave in the form of a bore) are measured using a shear cell. This paper deals with the measurements and modeling of the bed stress under the solitary waves.
CSIRO-Australia Flagship Cluster Grant under Wealth from Oceans – Pipeline Hazards program
 
Date 2012-09-17T09:56:35Z
2012-09-17T09:56:35Z
2009
 
Type Conference Article
 
Identifier In " Proceedings Of Coastal Dynamics 2009: Impacts of Human Activities on Dynamic Coastal Processes, eds. by Mizuguchi, M.; Sato, S."; 13pp.
http://drs.nio.org/drs/handle/2264/4170
 
Language en
 
Rights World Scientific Pub. Co., ©2009
 
Publisher World Scientific Pub. Co.