COMPARISON OF TWO TYPES OF WAVE BUOYS: LINEAR AND SECOND-ORDER MOTION

Yue Ding, Paul H. Taylor, Thobani Hlophe, Wenhua Zhao

Research output: Chapter in Book/Report/Conference proceedingConference proceedings published in a bookpeer-review

Abstract

Wave data from oceanographic buoys remains indispensable in offshore and coastal engineering. Modern wave buoys can produce semi-Lagrangian time histories of motion in three dimensions (one vertical and two horizontal) in addition to the standard statistical output. A recent study (Ding et al., 2023) reveals that, while the three translational motions of a wave buoy are dominated by the linear components, there is significant nonlinearity in the horizontal plane. This study uses field data from the Southern Ocean off Albany, Western Australia, measured from four closely spaced buoys: three Sofar Spotters and a Datawell Directional Waverider-4. The measured time histories measured by the different types of wave buoys in three orthogonal directions and the relationship between them have been systematically investigated, for the first time. Significant second-order components in both vertical and horizontal directions are observed.

Original languageEnglish
Title of host publicationOcean Engineering
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791887820
DOIs
Publication statusPublished - 2024
Externally publishedYes
EventASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2024 - Singapore, Singapore
Duration: 9 Jun 202414 Jun 2024

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume5A-2024

Conference

ConferenceASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2024
Country/TerritorySingapore
CitySingapore
Period9/06/2414/06/24

ASJC Scopus subject areas

  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

Keywords

  • data analysis
  • directional spreading waves
  • full scale measurement
  • non-linearity
  • Oceanographic wave buoy

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