TSUNAMI simulation generated by the greatest earthquake scenario along the nankai trough under consideration of tidal currents in a large bay

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

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

3 Citations (Scopus)

Abstract

This study investigated the 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 tide-tsunami simulation in Osaka Bay as a pilot shallow ocean. Our results demonstrate that the tide-tsunami interaction is significant in the strong flood and ebb tide due to tidal advection. The speed of the tsunami intruding into the bay is enhanced (declined) by the advection of the flood (ebb) tide, leading to the early (late) approach of the tsunami wave to the coasts. More realistic tide-tsunami coupled simulation is essential to establish more effective hazard maps and evacuation scenarios.

Original languageEnglish
Title of host publicationProceedings of the International Offshore and Polar Engineering Conference
PublisherInternational Society of Offshore and Polar Engineers
Pages811-816
Number of pages6
Volume2015-January
ISBN (Print)9781880653890
Publication statusPublished - 2015
Event25th International Ocean and Polar Engineering Conference, ISOPE 2015 - Kona, Big Island, United States
Duration: 2015 Jun 212015 Jun 26

Other

Other25th International Ocean and Polar Engineering Conference, ISOPE 2015
CountryUnited States
CityKona, Big Island
Period15/6/2115/6/26

Keywords

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

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Mechanical Engineering
  • Ocean Engineering

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