A new tsunami numerical simulation with boussinesq-typed equatons applied for the 1983 nihonkai-chubu earthquake tsunami

Hiroyuki Iwase, Fumihiko Imamura

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

3 Citations (Scopus)

Abstract

A new numerical simulation model with Boussinesq-typed equations for tsunamis is developed to reproduce a dispersive wave observed in the 1983 Nihonkai-Chubu earthquake tsunami. The present model has advantages with the multi regions simulation with nested grid system including runup. The two-step mixed finite difference method is selected as the numerical method because of numerical stability and high-speed calculation. Since the numerical simulation with dispersion effect and without breaking overestimates the value of the run-up, wave breaking model was developed in the model through the comparison with hydraulic experiment. We applied the model to the 1983 Nihonkai-Chubu earthquake tsunami. The tsunami heights on shoreline and inundation regions on land are obtained with numerical stability and we have results more higher and widely than those by the shallow water model.

Original languageEnglish
Title of host publicationAsian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference
EditorsYoshimi Goda, Kazuo Nadaolta, Wataru Kiolta
Publisher[publishername] World Scientific
ISBN (Print)9789812703040
DOIs
Publication statusPublished - 2004 Jan 1
Event2nd International Conference on Asian and Pacific Coasts, APAC (WITH CD-ROM) 2003 - Chiba, Japan
Duration: 2004 Feb 292004 Mar 4

Publication series

NameAsian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference

Conference

Conference2nd International Conference on Asian and Pacific Coasts, APAC (WITH CD-ROM) 2003
CountryJapan
CityChiba
Period04/2/2904/3/4

Keywords

  • Boussinesq-typed equations
  • The 1983 Nihonkai-Chubu earthquake tsunami
  • Tsunami numerical simulation

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology, Evolution, Behavior and Systematics
  • Ecology

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    Iwase, H., & Imamura, F. (2004). A new tsunami numerical simulation with boussinesq-typed equatons applied for the 1983 nihonkai-chubu earthquake tsunami. In Y. Goda, K. Nadaolta, & W. Kiolta (Eds.), Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference (Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference). [publishername] World Scientific. https://doi.org/10.1142/9789812703040_0002