閉鎖性海域の海水交換に関する研究

Abstract

In genaral, tidal exchange of water in a semi-enclosed sea area is the result of currents induced by wind and density and horizontal residual circulation associated with the geometry of the basin.This paper describes the tidal exchange phenomena governed by the horizontal mean circulation in the system.Two approaches were used for analyzing the tidal exchange.One is a physical experiment and the other is a numerical simulation based on the ADI method. It was found that exchange of water between adjacent circulations was determined mainly by the scale and velocity of circulations and the time during the streamlines of the circulation were kept closing.