Abstract
Numerical study of dispersion effect for tsunami propagation for the case of Indian Ocean Tsunami has been carried out using three model equations: Linear shallow water (LSW) equations, Nonlinear shallow water (NLSW) equations, and Weakly-Nonlinear Bossuineq-type (WNB) equations. Model simulation results are compared each other and against observations data. General features of tsunami wave patterns are agree very well using the three models but the WNB model produced development in time of tsunami front face which caused by the dispersion effect. Two dimensional wave pattern and spatial profile of sea surface are discussed to study the dispersion effect.
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