Abstract
The Japan Sea is a semi-enclosed water body with complicated geometry and a narrow strait of Tsushima through which sea current enters. As for the surface current of the Japan Sea, tidal component is weak followed by the sea current component. In wintertime the strong seasonal wind blows over the Japan Sea to induce the surface current. The purpose of this paper is to develop a method to estimate the surface current in winter quantitatively. Firstly the observed data of wind and surface current off the Noto Peninsula is analyzed to obtain the predominant flow direction of Northwest and the magnitude of the wind driven flow of about 15cm/s. Secondly, the numerical model to calculate tidal flow and sea current is developed with the obtained maximum tidal flow of about 15cm/s and sea current about 3cm/s of the Noto Peninsula, confirming the predominance of the wind driven current.
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