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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