Tsunami-tide simulation in a large bay based on the greatest earthquake scenario along the Nankai trough

Satoshi Nakada, Mitsuru Hayashi, Shunichi Koshimura, Syouta Yoneda, Ei Ichi Kobayashi

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

This study investigated influences of tides on a giant tsunami generated by the greatest earthquake scenario along the Nankai Trough occurring in the near future by conducting a tsunami-tide simulation in Osaka Bay as a pilot shallow ocean. Our results demonstrated that the tsunami-tide interaction is significant in the strong flood and ebb tide due to tidal advection. The speed of the tsunami is enhanced (decreased) by advection of the flood (ebb) tide, leading to the early (late) approach of tsunami waves to coasts. More realistic tsunami-tide coupled simulation is essential to establish more effective hazard maps and evacuation scenarios.

Original languageEnglish
Pages (from-to)392-400
Number of pages9
JournalInternational Journal of Offshore and Polar Engineering
Volume26
Issue number4
DOIs
Publication statusPublished - 2016 Dec 1

Keywords

  • Giant tsunami
  • Interaction
  • Nankai trough
  • Numerical simulation
  • Osaka bay
  • Shallow ocean
  • Tide

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ocean Engineering
  • Mechanical Engineering

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