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http://dx.doi.org/10.5000/EESK.2003.7.1.041

Simulation of Tsunamis in the East Sea Using Dynamically-Interfaced Multi-Grid Model  

Choi, Byung-Ho (성균관대학교 토목환경공학과)
Efim, Pelinovsky (러시아 과학원 응용물리연구소)
Woo, Seung-Buhm (미국 코넬대학교 토목환경공학과)
Lee, Jong-Woong (성균관대학교 토목환경공학과)
Mun, Jong-Yoon (성균관대학교 토목환경공학과)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.7, no.1, 2003 , pp. 41-55 More about this Journal
Abstract
A dynamically-interfaced multi-grid finite difference model for simulation of tsunamis in the East Sea(Choi et al.) was established and further applied to produce detailed feature of coastal inundations along the whole eastern coast of Korea. The computational domain is composed of several sub-regions with different grid sizes connected in parallel of inclined directions with 16 innermost nested models. The innermost sub-region represents the coastal alignment reasonably well and has a grid size of about 30 meters. Numerical simulations have been performed in the framework of shallow-water equations(linear, as well as nonlinear) over the plane or spherical coordinate system, depending on the dimensions of the sub-region. Results of simulations show the general agreements with the observed data of run-up height for both tsunamis. The evolution of the distribution function of tsunami heights is studied numerically and it is shown that it tends to the log-normal curve for long distance from the source.
Keywords
tsunami; dynamically-interfaced multi-grid model; run-up; distribution function;
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