A Numerical Prediction of Semidiurnal Current Patterns in Tanabe Bay

Abstract

Study of tidal currents in Tanabe Bay has a long history which is related to the fields which cover coastal hazards as well as study on physical oceanography and biological oceanography. In this study, the dynamics of Tanabe Bay is studied by using a model of a finite difference method with comments on the previous observations of tidal currents in Tanabe Bay. In order to get a reasonable solution from the author's model, as has done in the other cases, it is necessary to consider first how to choose the initial conditions of the dynamic factors concerned. Although the effects of the so-called "Kuroshio Current", coastal waters and meteorological effects are occasionally significant in the area of interest, simply the semidiurnal oscillation in the model is considered and compared to the previously observed current velocity of M_2 constituent in this model. The flow patterns at the peak ebb and peak flood in the model are compared to the flow pctterns for the resonant mode with an offshore node of Tanabe Bay as a wide-open bay.