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Application of Practical Dispersion-Correction Scheme for Simulation of Tsunami Propagation  

Choi, Moon-Kyu (한양대학교 대학원 토목공학과)
Ha, Tae-Min (한양대학교 대학원 토목공학과)
Cho, Yong-Sik (한양대학교 공과대학 토목공학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.8, no.4, 2008 , pp. 145-152 More about this Journal
Abstract
The initial wave lengths of tsunamis can be several tens to hundreds kilometers. Thus, the importance of the frequency dispersive effects in proportion to variation of the wave length, and should be properly considered in numerical simulation of tsunami propagation for a better accuracy. Recently, a practical dispersion-correction scheme has been developed by adding dispersion-correction terms(Cho et al., 2007). The new model employing the numerical technique has been verified by comparing numerical results with available analytic solutions, however, the new model has not yet been applied on a real topography. In this study, the new model is applied on a real topography and its applicability is examined. To study the applicability of the new model, two historical tsunami events are simulated for Sokcho, Mukho and Pohang harbors, with the tide gage records. Numerical results, the arrival time and the maximum water level at the tidal stations, are compared with observed data at each harbor.
Keywords
Tsunami; Dispersion effects; Nonlinear shallow-water equations; Maximum run-up height level;
Citations & Related Records
연도 인용수 순위
  • Reference
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