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)
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）作者机构：Woods Hole Oceanographic Institution MA02543 1053 USA Woods Hole Oceanographic Institution MA02543 1053 USA
出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))
年 卷 期：2004年第9期
页 面：49-55+98页
学科分类：082403[工学-水声工程] 08[工学] 0824[工学-船舶与海洋工程]
基 金：theNationalNaturalScienceFoundationofChina(GrantNo.10234050) ChinaAmericainternationalcollaborativeresearchprogram(GrantNo.10023004) andONRofUSA
主 题：fluctuations internal waves inversion.
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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