Changes of Tides in Isahaya Bay due to a Barrier

Abstract

A regional ocean tide model was designed to cover an area that is broad in scope and size, yet also provide a high degree of resolution for scientific and engineering interests. Using this model study, the changes in the tidal regime in the Ariake Sea after the construction of the dike in the Isahaya Bay were simulated in terms of the tide, tidal current, bottom shear stress, tidal energy dissipation and transport potential and free oscillation mode. The simulation results indicated the impact of the dike construction on the tidal regime by showing the general decreases in the tide, tidal current, the capacities of sediment transport and free oscillation period due to the construction of the dike.