A New Physical Mechanism of the Storm Surge Event Generated by the Onshore Ekman Transport in the Deep Open Sea

• HASHIMOTO Koji

  (株) アルファ水工コンサルタンツ

• YOSHINO Jun

  岐阜大学大学院工学研究科環境エネルギーシステム専攻

• MURAKAMI Tomokazu

  豊橋技術科学大学産学官連携工学部建設工学系

• YASUDA Takashi

  岐阜大学大学院工学研究科環境エネルギーシステム専攻

Bibliographic Information

Other Title

• エクマン輸送に起因する新たな外洋型の高潮発生機構

Abstract

The physical mechanism of October 2006 storm surge in the east coast of Hokkaido, Japan, is investigated in this study by using a coupled atmosphere-ocean-wave model. An approaching extratropical cyclone has generated abnormal high tide levels in Hanasaki Bay even though an along-shore wind has dominated. Its mechanism is considered to be different from the well-known type. A numerical simulation with the Coriolis force can predict a realistic high tide level of about 70cm, which is at least 20cm higher than that by a simulation without the. Coriolis force. The results explain that the strong steady-state along-shore wind is able to cause a huge storm surge due to the Ekman transport, even in coastal areas facing the deep open sea.

Journal

• PROCEEDINGS OF COASTAL ENGINEERING, JSCE

  PROCEEDINGS OF COASTAL ENGINEERING, JSCE 54 271-275, 2007

  Japan Society of Civil Engineers

Keywords

• General Chemical Engineering

Details

• CRID: 1390001204551844864
• NII Article ID: 130003808052
• DOI: 10.2208/proce1989.54.271
• ISSN: 18848222
• ISSN: 09167897
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed