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
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

Fingerprint

acoustics
data analysis
gauges
significant wave height
acoustic method
wave spectrum
wave height
comparison
water
gauge
testing
surface water
methodology

All Science Journal Classification (ASJC) codes

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

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

Comparison and characterization of bottom mounted wave directional systems. / Nagai, Toshihiko; Hashimoto, Noriaki; Lohrmann, Atle; Mitsui, Masao; Konashi, Shoichiro.

Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference. ed. / Yoshimi Goda; Kazuo Nadaolta; Wataru Kiolta. [publishername] World Scientific, 2004. (Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference).

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

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, 2nd International Conference on Asian and Pacific Coasts, APAC (WITH CD-ROM) 2003, Chiba, Japan, 2/29/04. https://doi.org/10.1142/9789812703040_0022
Nagai T, Hashimoto N, Lohrmann A, Mitsui M, Konashi S. Comparison and characterization of bottom mounted wave directional systems. In Goda Y, Nadaolta K, Kiolta W, editors, Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference. [publishername] World Scientific. 2004. (Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference). https://doi.org/10.1142/9789812703040_0022
Nagai, Toshihiko ; Hashimoto, Noriaki ; Lohrmann, Atle ; Mitsui, Masao ; Konashi, Shoichiro. / Comparison and characterization of bottom mounted wave directional systems. Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference. editor / Yoshimi Goda ; Kazuo Nadaolta ; Wataru Kiolta. [publishername] World Scientific, 2004. (Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference).
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