NUMERICAL MODELLING OF WAVE-DRIVEN CURRENTS IN SHALLOW WATER; A CASE STUDY FROM NOSHAHR COASTS

In situ measurements of wave and current close to Noshahr was used to estimate the longshore current within the surf zone close to Noshahr port. The third generationwave model, SWAN1 was used to simulate wave propagation from offshore boundary to coastline. A 1D model for wave-induced current was developed. Themodel successfully reproduced alongshore current measured by ADCP2 during storm event. 2.Introduction Wave induced longshore currents are assumed to beresponsible for changes in the shoreline plan-shape on extend of kilometers [1, 4, 10]. However, the cross-shore currents action should be taken into account for predictingdetailed bathymetry variations; for instance when appraising the impact nearby coastal structures [7, 11]. In this study performance of a 1D model for estimating thewave-driven longshore currents is evaluated.