Cross-shore Distribution of Long-Term Average Longshore Sediment Transport Rate

Abstract

Cross-shore distributions of longshore sediment transport rate at the Hasaki Coast of Japan for 15 years from 1987 to 2001 were estimated with a one-dimensional numerical model and the cross-shore distribution of the long-term average longshore sediment transport rate was examined. The model was calibrated with longshore current velocities measured with a spherical float once a day at about 50-m intervals along a 427-meter-long pier at the study site. Numerical simulations showed that the average longshore sediment transport rate was northward near the shore, but southward away from the shore.