UAV-BASED ANALYSIS OF WAVE PROPAGATION AND RUNUP CHARACTERISTICS

• MATSUBA Yoshinao

  東京大学 工学系研究科社会基盤学専攻

• SHIMOZONO Takenori

  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

• UAVを用いた波の伝播・遡上特性分析
• UAV オ モチイタ ナミ ノ デンパ ・ ソジョウ トクセイ ブンセキ

Abstract

 We counducted a UAV-based field survey focusing on nonlinear wave-wave interactions of wind waves and swells during propagation and swash processes. Shoreline evolution was detected from UAV images and was analysed together with offshore wave data. We found through spectral and bispectral analyses that nonlinear interactions of the two wave components occurred through wave breaking over an offshore bar, generating longer waves of a difference frequency. The resulting long waves further interacted with swells in shallower water to characterize the spectral structure of shoreline evolution.

Journal

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

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 73 (2), I_103-I_108, 2017

  Japan Society of Civil Engineers

Keywords

• swash
• UAV
• bispectrum
• wave breaking
• nonlinear resonance

Details

• CRID: 1390282680297739392
• NII Article ID: 130006171666
• DOI: 10.2208/kaigan.73.i_103
• ISSN: 18838944
• ISSN: 18842399
• NDL BIB ID: 028749036
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028749036
• Web Site: https://www.jstage.jst.go.jp/article/kaigan/73/2/73_I_103/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed