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

Akifumi Tatekoji, Ryota Nakamura, Tomoya Shibayama

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトルProceedings of the 35th International Conference on Coastal Engineering, ICCE 2016
編集者Patrick Lynett
出版社American Society of Civil Engineers (ASCE)
ISBN(電子版)9780989661133
出版ステータスPublished - 2016
イベント35th International Conference on Coastal Engineering, ICCE 2016 - Antalya, Turkey
継続期間: 2016 11 172016 11 20

出版物シリーズ

名前Proceedings of the Coastal Engineering Conference
35
ISSN(印刷版)0161-3782

Other

Other35th International Conference on Coastal Engineering, ICCE 2016
国/地域Turkey
CityAntalya
Period16/11/1716/11/20

ASJC Scopus subject areas

  • 土木構造工学
  • 海洋工学
  • 海洋学

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