TY - GEN
T1 - Comparison and characterization of bottom mounted wave directional systems
AU - Nagai, Toshihiko
AU - Hashimoto, Noriaki
AU - Lohrmann, Atle
AU - Mitsui, Masao
AU - Konashi, Shoichiro
N1 - Funding Information:
Authors have to express a sincere gratitude to the Shimizu Port Construction Office, Ministry of Land, Infrastructure and Transport for its cooperation to the field test. Authors also have to express sincerity thanks to the Engan-Kaiyou-Chosa Co. for its collaboration of wave gages installation and withdraw, and to the Ecoh Co. for its collaboration of arranging figures and tables.
Publisher Copyright:
© 2004, World Scientific. All rights reserved.
PY - 2004
Y1 - 2004
N2 - 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.
AB - 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.
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U2 - 10.1142/9789812703040_0022
DO - 10.1142/9789812703040_0022
M3 - Conference contribution
AN - SCOPUS:85066759610
SN - 9789812703040
T3 - Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference
BT - Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference
A2 - Goda, Yoshimi
A2 - Nadaolta, Kazuo
A2 - Kiolta, Wataru
PB - [publishername] World Scientific
T2 - 2nd International Conference on Asian and Pacific Coasts, APAC (WITH CD-ROM) 2003
Y2 - 29 February 2004 through 4 March 2004
ER -