Tide And Wave-induced Changes At A Coastal
Lagoon Entrance
Author(s)
P. Holmes & S.P. Samarawickrama
Abstract
The paper describes the application of two mathematical models to predict the tide and wave-
induced changes at a coastal lagoon entrance. The tidal model is a typical depth-averaged finite
difference model which predicts water surface elevations, the two dimensional tide induced
velocity field, the residual currents and sediment transport rates in the lagoon and its
entrance/exit. The water surface elevations and the depth averaged velocities within the lagoon
were evaluated numerically by solving the time dependent non-linear equations of mass and
momentum, in the horizontal plane, using the alternating direct implicit finite difference scheme.
The two depth integrated momentum equations were formulated to include the effects of the
earth's rotation, bed resistance, turbulent diffusion and con
Keywords
Related Book
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