STUDY ON INUNDATION CHARACTERISTICS AT FALEOLO, SAMOA SURROUNDED BY A FRINGING REEF WITH COMPLEX SHAPE

• YOKOBORI Masato

  東京大学 工学系研究科社会基盤学専攻

• TAJIMA Yoshimitsu

  東京大学 工学系研究科社会基盤学専攻

Bibliographic Information

Other Title

• 複雑なリーフ形状を有するSamoa Faleoloにおける浸水特性の分析

Abstract

 This study investigated the influence of complex shape of the fringing reef on inundation characteristics along the coast through the case study at Faleolo in Samoa when Cyclone Val hit the site in 1991. Through the field survey, it was found that the recorded water level fluctuation had clear peak spectrum in low frequency components with period of several minutes. Numerical model was then applied to represent the behavior of wind waves and wave-induced water level fluctuations on and around the fringing reef under the attack of Val. The numerical results reasonably represented the actual inundation confirmed in the field survey and the analysis of the computed results revealed the dominant influence of wave setup and resonance of low frequency fluctuations on locally amplified water level on the reef.

Journal

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

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 75 (2), I_163-I_168, 2019

  Japan Society of Civil Engineers

Keywords

• fringing reef
• stormy waves
• inundation
• infragravity wave
• resonance
• surf beat

Details

• CRID: 1390564227323769472
• NII Article ID: 130007730183
• DOI: 10.2208/kaigan.75.i_163
• ISSN: 18838944
• ISSN: 18842399
• Web Site: https://www.jstage.jst.go.jp/article/kaigan/75/2/75_I_163/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed