Climate change adaptation in Tokyo Bay: The case for a storm surge barrier

Miguel Esteban, Takahito Mikami, Tomoya Shibayama, Hiroshi Takagi, Sebastiaan N. Jonkman, Mathijs Van Ledden

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

    5 Citations (Scopus)

    Abstract

    Increases in typhoon intensity and sea level rise could pose significant challenges to coastal defences around Tokyo Bay. In order to analyse the extent of future problems the authors determined the increase storm surge that could result from an increase in typhoon intensity and sea level rise to this area around the turn of the 21st century. Results show how the various settlements around Tokyo Bay are at considerable risk of storm surges and sea level rise in the future. If defences are breached the potential direct economic consequences could be significant, potentially in excess of 100 trillion yen, with the indirect costs likely to be even greater. As a result it is likely that sea defences will have to be strengthened around Tokyo Bay in the future, which could cost in the order of 370bn yen to defend against a 1 in 100 year storm by the year 2100. Alternatively, a storm surge barrier could be built, which would be more expensive (possibly in the range of 700-800bn yen), though it could increase the protection level and would be able to cope with 1 in 200 or 500 year events, amongst other benefits.

    Original languageEnglish
    Title of host publicationProceedings of the Coastal Engineering Conference
    PublisherAmerican Society of Civil Engineers (ASCE)
    Volume2014-January
    ISBN (Print)9780989661126
    Publication statusPublished - 2014
    Event34th International Conference on Coastal Engineering, ICCE 2014 - Seoul, Korea, Republic of
    Duration: 2014 Jun 152014 Jun 20

    Other

    Other34th International Conference on Coastal Engineering, ICCE 2014
    CountryKorea, Republic of
    CitySeoul
    Period14/6/1514/6/20

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    Keywords

    • Adaptation
    • Coastal defences
    • Flood risk
    • Sea level rise
    • Storm surge
    • Tokyo Bay
    • Typhoons
    • Typhoons

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Ocean Engineering
    • Oceanography

    Cite this

    Esteban, M., Mikami, T., Shibayama, T., Takagi, H., Jonkman, S. N., & Van Ledden, M. (2014). Climate change adaptation in Tokyo Bay: The case for a storm surge barrier. In Proceedings of the Coastal Engineering Conference (Vol. 2014-January). American Society of Civil Engineers (ASCE).