土木学会論文集B2(海岸工学)
Online ISSN : 1883-8944
Print ISSN : 1884-2399
ISSN-L : 1883-8944
和文論文
東北地方太平洋沖地震による東海地方の津波特性
川崎 浩司鈴木 一輝高杉 有輝高須 吉敬
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2013 年 69 巻 2 号 p. I_186-I_190

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Tsunami induced by the 2011 Tohoku Earthquake reached coastal areas of Tokai area, where is far more than 500km from the epicenter. Toward a future disaster prevention plan against tsunami hazard, it is significant to consider the impact of the tsunami on Tokai area. This paper investigated tsunami characteristics in Tokai coastal area from the observed tsunami data and the numerical results with a 2-D depth-integrated tsunami flow model. Through the observed data, the tsunamis reaching Tokai coastal area were found to have maximum heights in the range of 0.4 m to 1.8 m. The numerical results revealed that tsunami heights were amplified by the local coastal topography in some regions. It was also confirmed that strong flow with about 2 m/s occurred due to tsunami backwash in Gokasho bay where fishery damages were caused.

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