On the Mechanism of Damage to Laver Aquaculture in Tokyo Bay Caused by the 2011 Tohoku Tsunami

• SASAKI Jun

  The University of Tokyo

• YAMAMOTO Shuji

  Yokohama National University

• WIYONO Retno Utami Agung

  Yokohama National University

• SUZUKI Takayuki

  Yokohama National University

• TANAKA Yoji

  Yokohama National University

Bibliographic Information

Other Title

• 2011年東北津波による東京湾のノリ養殖被害に関する考察

Abstract

The 2011 Tohoku tsunami caused severe damage to laver aquaculture in Tokyo Bay. We performed investigations at several fisheries cooperatives and organized spatial variations of damage degree for each of farming facilities. We then carried out numerical hindcasting of the tsunami to elucidate the damage mechanisms using an unstructured finite volume circulation model FVCOM. From the investigation and the numerical simulation results, the degree of damage was found to be correlated to the magnitude of the maximum drag stress on the facilities rather than the maximum tsunami height. We also made a prediction of tsunami damage to seaweed farming cased by each of expected earthquakes and found out that a Keicho-type earthquake may lead to heavier damage in the southern part of the bay.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 69 (2), I_351-I_355, 2013

  Japan Society of Civil Engineers

Keywords

• expected tsunamis
• numerical simulation
• hearig investigation
• unstructured grid model
• FVCOM

Details

• CRID: 1390001205319260800
• NII Article ID: 130004551095
• DOI: 10.2208/kaigan.69.i_351
• ISSN: 18838944
• ISSN: 18842399
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed