Image-based Analysis of Long Wave Characteristics along the Swash Zone

• TAJIMA Yoshimitsu

  The University of Tokyo

• MIKAMI Ikuma

  Itochu Corporation

• HASEGAWA Takaya

  The University of Tokyo

Bibliographic Information

Other Title

• 沿岸域遡上帯における長周期波伝播特性の画像分析
• エンガンイキ ソジョウタイ ニ オケル チョウ シュウキハ デンパ トクセイ ノ ガゾウ ブンセキ

Abstract

This study aims to develop an image-based monitoring system for observations of surf zone hydrodynamics especially focusing on evolution and propagations of long wave components. Laboratory experiment was first performed to link between measured surface water fluctuations inside the surf zone and shoreline changes captured by images. Long wave components extracted from observed shoreline changes agree well with those based on measured surface water fluctuations in terms of their alongshore distributions of phases and amplitudes. The same image-based technique was applied to the field, the Seisho coast when the typhoon 1112 approached the site. It was found through the analysis that extracted longwave components were consistent with offshore wave data and showed characteristics of edge waves.

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_146-I_150, 2013

  Japan Society of Civil Engineers

Keywords

• swash zone
• long wave
• Edge wave
• Image-based monitoring

Details

• CRID: 1390001205319499136
• NII Article ID: 40019876569
• NII Article ID: 130004551045
• NII Book ID: AA12508551
• DOI: 10.2208/kaigan.69.i_146
• ISSN: 18838944
• ISSN: 18842399
• NDL BIB ID: 025019872
• Web Site: http://id.ndl.go.jp/bib/025019872
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025019872
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed