ONSHORE-OFFSHORE TRANSPORT AND BEACH PROFILE CHANGE

Masataro Hattori, Ryoichi Kawamata

Abstract


In this paper a model is presented to describe onshore-offshore sand transport in the surf zone. The model is based on the physical consideration that when the net transport attains a state of equilibrium, the power expended through gravitational force in suspending sand grains is balanced by that due to the uplifting force arising from the turbulence generated by breaking waves. Two important parameters controlling sand transport are the dimensionless fall-time parameter and bottom slope.

Keywords


crossshore transport; beach profile; profile change

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