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Practical Construction of Tsunami Inundation Map to Link Disaster Forecast/Warning and Prevention Systems  

Choi, Jun-Woo (Dept. of Civil Engineering, Hanyang University)
Kim, Kyung-Hee (Dept. of Civil Engineering, Hanyang University)
Jeon, Young-Joon (Division of Civil Works, Hyundai Engineering and Construction Co., LTD.)
Yoon, Sung-Bum (Dept. of Civil & Environ. Engrg.)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.20, no.2, 2008 , pp. 194-202 More about this Journal
Abstract
In general, forecast tsunami heights announced for tsunami warning are computed by using a linear tsunami model with coarse grids which leads the underestimation of inundation area. Thus, an accurate tsunami inundation map corresponding the forecast tsunami height is needed for an emergency evacuation plan. A practical way to construct a relatively accurate tsunami inundation map was proposed in this study for the quantitative forecast of inundation area. This procedure can be introduced as in the followings: The fault dislocations of potential tsunami sources generating a specific tsunami height near an interested area are found by using a linear tsunami model. Based on these fault dislocations, maximum inundation envelops of the interested area are computed and illustrated by using nonlinear inundation numerical model. In this study, the tsunami inundation map for Imwon area was constructed according to 11 potential tsunami sources, and the validity of this process was examined.
Keywords
forecast tsunami height; linear model; potential tsunami source; nonlinear inundation model; inundation map;
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