Comparison and characterization of bottom mounted wave directional systems

Toshihiko Nagai, Noriaki Hashimoto, Atle Lohrmann, Masao Mitsui, Shoichiro Konashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, authors introduce the results from three different bottom mounted systems, DWDM, AWAC and DL2, installed in the same offshore area within 20m horizontal distance where wave conditions are almost constant, all using acoustic techniques in combination with pressure. The detail implementation is different in each system and the purpose is to analyze how the differences impact the characteristics of the observed wave spectra. Significant wave heights and periods obtained by each type of wave gauge showed good agreement during the test term, in both high wave conditions with significant wave heights bigger than 6m and low wave conditions with wave heights lower than 0.5m. Nevertheless, in the high frequency component wave expression, AWAC results slightly differs to the DWDM and DL2 results, for AWAC wave data analysis is based on the seabed pressure fluctuation, while DWDM and DL2 wave data analysis is based on direct acoustic water surface movement.

Original languageEnglish
Title of host publicationAsian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference
EditorsYoshimi Goda, Kazuo Nadaolta, Wataru Kiolta
Publisher[publishername] World Scientific
ISBN (Print)9789812703040
DOIs
Publication statusPublished - Jan 1 2004
Externally publishedYes
Event2nd International Conference on Asian and Pacific Coasts, APAC (WITH CD-ROM) 2003 - Chiba, Japan
Duration: Feb 29 2004Mar 4 2004

Publication series

NameAsian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference

Conference

Conference2nd International Conference on Asian and Pacific Coasts, APAC (WITH CD-ROM) 2003
CountryJapan
CityChiba
Period2/29/043/4/04

All Science Journal Classification (ASJC) codes

  • Aquatic Science
  • Ecology, Evolution, Behavior and Systematics
  • Ecology

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  • Cite this

    Nagai, T., Hashimoto, N., Lohrmann, A., Mitsui, M., & Konashi, S. (2004). Comparison and characterization of bottom mounted wave directional systems. In Y. Goda, K. Nadaolta, & W. Kiolta (Eds.), Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference (Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference). [publishername] World Scientific. https://doi.org/10.1142/9789812703040_0022