An imaging technique for measuring wave surface shapes

Yasunori Watanabe, Yuta Mitobe, Kaori Oshima

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


A novel imaging technique for identifying the locations of free-surface shapes was applied to three-dimensional hydraulic tests of coastal structures. Three-dimensional wave fields, consisting of superposed local reflected and diffracted waves, were measured around a breakwater and the mouth of a model harbor in a laboratory wave basin, and the results are consistent with the predictions of a Boussinesq-type equation model. The new technique was applied to surf zone waves to describe the organized deformation of breaking wave faces that evolve during wave propagation. Typical finger-shaped jets form in the wake of plunging jets, and a local depression trails behind a breaking wave front.

Original languageEnglish
Pages (from-to)549-565
Number of pages17
JournalCoastal Engineering Journal
Issue number4
Publication statusPublished - 2011 Dec


  • Wave shape
  • imaging measurement
  • projector

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Modelling and Simulation
  • Ocean Engineering


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