Journal
COMPTES RENDUS GEOSCIENCE
Volume 336, Issue 11, Pages 1025-1033Publisher
EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.crte.2004.03.011
Keywords
intertidal flat; numerical model; tidal flow; waves; cohesive sediment; morphodynamical equilibrium
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Cross-shore morphodynamical modelling of an intertidal mudflat. Numerical experiments were performed to simulate the profile evolution of an intertidal mudflat with a 1D cross-shore morphodynamical model. First, the hydrodynamical forcing is a cross-shore tidal current due to semi-diurnal variations of the free surface elevation at the open boundary. Further, considering the conservation of the action density of surface gravity waves, a wave height (and resulting bottom shear stress) calculation is added to the morphodynamical model. Results of the numerical experiments show that the shape of the profile reaches equilibrium. The mudflat progrades continually when the forcing is tide only, whereas it can be steady under the simultaneous action of tide and waves. (C) 2004 Academie des sciences. Publie par Elsevier SAS. Tous droits reserves.
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