Numerical Tsunami Model in Osaka Bay

Abstract

A numerical experiment was undertaken to find what combination of tsunami source parameters was reasonable for an understanding of the dynamics of a tsunami inundating into a bay. Finite difference method was applied to the basic equations of long waves. The modelled area included Osaka Bay, Kii Channel, Harimanada and a part of the northwestern Pacific Ocean. In addition, the arrival time of the leading wave is discussed in reference to the results of the numerical experiment. The numerical results compare reasonably well with those from an observed tsunami.