| Observations on fluctuations of sound transmission and temperature field from the ASIAEX 2001 South China Sea experiment and inversion of the characterizations of internal tides (waves) |
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| 作者姓名： | WANG Shaoqiang WU Lixin WANG Huiwen ZHANG Renhe James F. Lynch Timothy F. Duda |
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| 作者单位： | National Laboratory of Acoustics, The Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China,National Laboratory of Acoustics, The Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China,National Laboratory of Acoustics, The Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China,National Laboratory of Acoustics, The Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China,Woods Hole Oceanographic Institution, MA02543-1053, USA,Woods Hole Oceanographic Institution, MA02543-1053, USA |
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| 基金项目： | 国家自然科学基金，China-America international collaborative research program，ONR of USA |
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| 摘 要： | Two conclusions are obtained by analyzing the fluctuation data of the temperature field and the sound transmission in the South China Sea from ASIAEX 2001 volume interaction experiment. First of all, the peak-to-peak value of the particle vertical mean displacement due to the internal waves exceeds 40 m. Secondly, the peak-to-peak value of the sound transmission fluctuations represented by the pulse leading-edge fluctuations of the travel-time average exceeds 100 ms. Based on that, the major components of the internal waves are obtained by analyzing the spectrum of the temperature field fluctuations. The spectrum structures of the temperature field fluctuations in the across-shelf and the along-shore directions are compared respectively, and the spectrum structures of the sound transmission in such two different directions are also compared. The multi-path signals and the travel-time of the pulse are respectively used to capture the information of the sound transmission fluctuations, and their spectrum structures are compared also.
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| 关 键 词： | fluctuations internal waves inversion |
Observations on fluctuations of sound transmission and temperature field from the ASIAEX 2001 South China Sea experiment and inversion of the characterizations of internal tides (waves) |
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| WANG Shaoqiang,WU Lixin,WANG Huiwen,ZHANG Renhe,James F. Lynch,Timothy F. Duda.Observations on fluctuations of sound transmission and temperature field from the ASIAEX 2001 South China Sea experiment and inversion of the characterizations of internal tides (waves)[J].Progress in Natural Science,2004,14(9):793-799. |
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| Authors: | WANG Shaoqiang WU Lixin Wang Huiwen ZHANG Renhe James FLynch Timothy FDuda |
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| Institution: | 1. National Laboratory of Acoustics, The Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China
2. Woods Hole Oceanographic Institution, MA02543-1053, USA |
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| Abstract: | Two conclusions are obtained by analyzing the fluctuation data of the temperature field and the sound transmission in the South China Sea from ASIAEX 2001 volume interaction experiment. First of all, the peak-to-peak value of the particle vertical mean displacement due to the internal waves exceeds 40 m. Secondly, the peak-to-peak value of the sound transmission fluctuations represented by the pulse leading-edge fluctuations of the travel-time average exceeds 100 ms. Based on that, the major components of the internal waves are obtained by analyzing the spectrum of the temperature field fluctuations. The spectrum structures of the temperature field fluctuations in the across-shelf and the along-shore directions are compared respectively, and the spectrum structures of the sound transmission in such two different directions are also compared. The multi-path signals and the travel-time of the pulse are respectively used to capture the information of the sound transmission fluctuations, and their spectrum structures are compared also. |
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| Keywords: | fluctuations internal waves inversion |
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