• Title/Summary/Keyword: forecast tsunami height

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Practical Construction of Tsunami Inundation Map Corresponding to Disaster Forecast/Warning Systems (지진해일 예경보에 따른 범람도의 실용적 작성)

  • Jeon, Young-Joon;Choi, Jun-Woo;Yoon, Sung-Bum
    • 한국방재학회:학술대회논문집
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    • 2008.02a
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    • pp.775-778
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    • 2008
  • 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 to the forecast tsunami height is indispensible 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.

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Practical Construction of Tsunami Inundation Map to Link Disaster Forecast/Warning and Prevention Systems (예경보와 방재시스템의 연계를 위한 지진해일 범람도의 실용적 작성)

  • Choi, Jun-Woo;Kim, Kyung-Hee;Jeon, Young-Joon;Yoon, Sung-Bum
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.20 no.2
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    • pp.194-202
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    • 2008
  • 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.