A VERIFICATION FOR TIDAL FLOW SIMULATION OF CLOSED BAY BY USING SATELLITE REMOTE SENSING

Omura Bay in Nagasaki Prefecture, which is called a double-closed bay, is connected with Sasebo Bay through very narrow channels. The authors had applied satellite remote sensing technique to confirm the exchange condition of seawater between these bays. This method is capable of investigating only the surface current. In this paper, the numerical simulation system was improved in order to simulate actual tides by using three-element control function. The results of satellite remote sensing were compared with the outcome of the simulation system. It follows that the results of satellite remote sensing and the outcome of the system corresponded well when the axis of coordinates which is rotated 34 degrees from circles of latitude and longitude and eddy viscosity in the 40m2/s to 60m2/s range were used for the numerical simulation.