Application of numerical ship navigation in a coastal area

Waves, ocean currents, and sea surface winds are important factors for safe and economic ship navigation, especially in coastal areas where ship density is relatively higher and the topography is more complicated. In this research, Osaka Bay, Japan, was selected as a location to conduct a representative, low-pressure numerical ship navigation. WRF, SWAN, and POM models were used to produce numerical simulations of wind, waves, and currents, respectively. The high-resolution weather and ocean information was then used to conduct a numerical ship navigation. To verify the accuracy, the results simulating the weather and ocean were compared with actual observation data. The findings showed that the estimation of a ship´s position using the proposed numerical navigation simulation method was effective in helping a ship navigate safely and economically.