抄録
Clockwise circulation in the upper layer and the decrease in the level of interface were found from field experiments to occur around the head of Tokyo Bay on 10th August 2001. It was revealed that the clockwise circulation in the upper layer resulted from wind with clockwise vorticity around the bay head, which appears when the dominant north or north-easterly wind changed to south-westerly. To clarify the mechanism responsible for the decrease in the level of interface, numerical experiment was carried out by using non-hydrostatic three-dimensional model (MEL3D). The importance of the sea-bottom slope around the bay head and clockwise circulation in the upper-layer was demonstrated.
