Development of a nested tsunami propagation model

Jihun Kim, Seongho Ahn, Taemin Ha, Yong Sik Cho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The linear shallow-water equations have been used frequently to simulate transoceanic propagation of tsunamis instead of the linear Boussinesq equations. In previous studies, the physical dispersion is compensated by using the numerical dispersion generated from the leap-frog finite difference scheme. However, the linear Boussinesq equations can be directly solved because computer technique has been improved dramatically. In this study, a new finite difference scheme is proposed to discretize the linear Boussinesq equations. The newly developed model is applied to propagation of a Gaussian hump over a constant water depth. The model is then verified by comparing predicted results with analytic solutions. Predicted results agree well with analytical solutions. The model can be directly applied to simulation of transoceanic propagation of tsunamis.

Original languageEnglish
Title of host publicationProceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011
Pages259-263
Number of pages5
StatePublished - 2011 Sep 19
Event21st International Offshore and Polar Engineering Conference, ISOPE-2011 - Maui, HI, United States
Duration: 2011 Jun 192011 Jun 24

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other21st International Offshore and Polar Engineering Conference, ISOPE-2011
CountryUnited States
CityMaui, HI
Period11/06/1911/06/24

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Keywords

  • Dispersion effects
  • Finite difference method
  • Linear Boussinesq equations
  • Tsunami

Cite this

Kim, J., Ahn, S., Ha, T., & Cho, Y. S. (2011). Development of a nested tsunami propagation model. In Proceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011 (pp. 259-263). (Proceedings of the International Offshore and Polar Engineering Conference).