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2014•土木学会論文集B2(海岸工学)Open access

Effect of Translation Speed and Scale of Tropical Cyclone on Storm Surge in Yatsushiro Bay

Sota NAKAJO, Soo Youl Kim, Nobuhito Mori, Tomohiro YASUDA, Hajime MASE, Fumihiko Yamada

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Abstract

Translation speed and scale of tropical cyclone are important factor of storm surge at local bay. We have to estimate storm surge variation range from information of tropical cyclone parameter we can get before it approaches to local area. Synthetic TC data based on historical TC tracks were generated and they were used for input to numerical model for estimating the water level of storm surge at regional scale. The TC track of the worst-case scenario for Yatsushiro bay located in center of west Kyushu Island was selected numerically. Finally, it was shown that it is possible to estimate rough variation range of maximum surge height from simulation results.

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Translation speed and scale of tropical cyclone are important factor of storm surge at local bay. We have to estimate storm surge variation range from information of tropical cyclone parameter we can get before it approaches to local area. Synthetic TC data based on historical TC tracks were generated and they were used for input to numerical model for estimating the water level of storm surge at regional scale. The TC track of the worst-case scenario for Yatsushiro bay located in center of west Kyushu Island was selected numerically. Finally, it was shown that it is possible to estimate rough variation range of maximum surge height from simulation results.

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Available abstract

Translation speed and scale of tropical cyclone are important factor of storm surge at local bay. We have to estimate storm surge variation range from information of tropical cyclone parameter we can get before it approaches to local area. Synthetic TC data based on historical TC tracks were generated and they were used for input to numerical model for estimating the water level of storm surge at regional scale. The TC track of the worst-case scenario for Yatsushiro bay located in center of west Kyushu Island was selected numerically. Finally, it was shown that it is possible to estimate rough variation range of maximum surge height from simulation results.

Key concepts: Storm surge, Tropical cyclone, Bay, Surge, Storm, Tropical cyclone forecast model, Climatology, Cyclone (programming language)

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