This paper describes a numerical model for the simulation of near shore wave dynamics and bottom topography change. In this part, the nearshore wave dynamics is simulated by solving the depth integrated Boussinesq approximation equations for nearshore wave transformation together with continuity equation with a Crank‐Nicholson scheme. The wave runup on beaches is simulated by a scheme, similar to the Volume Of Fluid (VOF) technique. The wave energy loss due to wave breaking and shear generated turbulence is simulated by .
