Littoral Drift Behavior around A Small Island Port

The shore behind the offshore fishing port has never been attached to the facility for 15 years after the construction. The main object is to investigate the littoral drift behavior around the port. As the result of wave and current observation, the differences in the time-averaged surface elevation were found at the right and left sides during typical storm. By using a volumetric analysis and a simple method to estimate the longshore sediment transport rate, 55 percents of the net longshore sediment transport is estimated to go through behind the port. In this study, a numerical simulation is applied and gives a good validation against the observed data and estimates the current field and suspended sediment transport during typical storm to understand the littoral drift behavior.