Influence of historical bathymetric changes due to urbanization on the vulnerability of storm surge in Tokyo bay

Akifumi Tatekoji, Ryota Nakamura, Tomoya Shibayama

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

    Abstract

    In this study, the influence of historical changes on bathymetry to the intensity and features of the storm surge in the Tokyo Bay is evaluated using the meteorology-ocean-Tide models. In detail, storm surge of 1917 is reproduced using an artificial Taisho Typhoon of 1917 in order to quantify the influence of bathymetric changes. This paper possesses two important findings. The first is that past storm surge occurred mainly because of shallow water area spanning over the inner bay which can be characteristics of past bathymetry. The second is that the high vulnerable area affected by storm surge has been shifted from mudflat shallow area in the inner bay to the below-sea-level inland area, due to landfill and urbanization which have continued approximately 100 years after the storm. As a conclusion, the bathymetry shifting due to human activity has a great influence to changing the effects of coastal disasters even in the same location.

    Original languageEnglish
    Title of host publicationProceedings of the 35th International Conference on Coastal Engineering, ICCE 2016
    PublisherAmerican Society of Civil Engineers (ASCE)
    Volume35
    ISBN (Electronic)9780989661133
    Publication statusPublished - 2016
    Event35th International Conference on Coastal Engineering, ICCE 2016 - Antalya, Turkey
    Duration: 2016 Nov 172016 Nov 20

    Other

    Other35th International Conference on Coastal Engineering, ICCE 2016
    CountryTurkey
    CityAntalya
    Period16/11/1716/11/20

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    Keywords

    • 1917 Taisho typhoon
    • FVCOM
    • Historical change
    • NAO.99b
    • Storm surge
    • Tokyo Bay
    • WRF

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Ocean Engineering
    • Oceanography

    Cite this

    Tatekoji, A., Nakamura, R., & Shibayama, T. (2016). Influence of historical bathymetric changes due to urbanization on the vulnerability of storm surge in Tokyo bay. In Proceedings of the 35th International Conference on Coastal Engineering, ICCE 2016 (Vol. 35). American Society of Civil Engineers (ASCE).