Research on Ship Navigation in Numerical Simulation of Weather and Ocean in a Bay

For safe navigation, high-resolution information on tidal current, wind and waves is very important. In coastal areas in particular, the weather and ocean situation change dramatically in time and place according to the effects of geography and water depth. In this paper, high-resolution wave data was generated using Simulating WAves Nearshore (SWAN) as a numerical wave model. To estimate waves, wind data is necessary. By using the mesoscale meteorological model of WRF-ARW, detailed wind data was generated. The tidal current data was generated by using Princeton Oceanography Model (POM). Tidal currents, wind and ocean waves are simulated for the duration of a typhoon passing over Japan in September of 2004. Secondly, ship maneuvering is simulated using simulated tidal current, wind and wave data. For the ship maneuvering model, the Mathematic Modeling Group (MMG) was used. Combining high-resolution tidal current, wind and wave data with the numerical navigation model, the effects of tidal current, wind and waves on a ship’s maneuvering is studied. Comparing the simulated route lines of a ship with the set course, it was recognized that the tidal current, wind and wave effects on a moving ship were significant.