Abstract:
This work investigates the morphological changes at the inlet of a complex coastal system (Ria de Aveiro
lagoon). This study was carried out using bathymetric data analysis and numerical simulations obtained with
the 2DH morphodynamic modeling system MORSYS2D. The present simulations considered only tidal
forcing and a sensitivity analysis was performed by tuning the formula used to compute the sediment fluxes
and the sediment characteristics (d50) The comparison of numerical results with bathymetric data shows that
the bottom changes are over-predicted when the formula of Bhattacharya et al. (2007) is considered, and
more realistic numerical solutions are obtained with the formula of van Rijn (1984).