Abstract
The previous highest Abiki occurred in the range centering on Kagoshima Prefecture in February, 2009. The damage by the Abiki, such as a fishing boat overthrow and flood under a floor, generated at Ojima fishing port in Urauchi bay of Kamikoshiki island, Kagoshima. Authors (2010) investigated about the propagation characteristic of Abiki by numerical simulation using non-linear long wave theory. However, the problem was in the accuracy of the submarine topography originated in calculation mesh size, and investigation about the magnification of Abiki inside the Urauchi-bay was inadequate. In this research, the numerical simulation using three-step nesting bottom topography data was carried out, and the validity of the calculation technique was checked as compared with local observation data. Furthermore, the effect of Abiki countermearsures was analyzed.
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