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浅海内波场与声场相互作用是ASIAEX 2 0 0 1南中国海实验的主要内容之一 .文中对这次实验所得到的海洋环境和声场数据进行了处理 ,分析了内波的基本特征及其对声传播的影响 .给出了孤子内波的传播速度、方向、幅度等主要特征物理量 .结果表明 :该海域存在孤子内波现象 ,幅度最大可达 14 0m .内波受到半日潮、全日潮和子午潮的调制 .内波主要由低阶模态控制 .分析了内波对不同频率、沿不同路径传播的声信号的总能量、峰值能量以及延迟时间的影响 .
The interaction between shallow ocean wave field and sound field is one of the main contents of the South China Sea experiment in ASIAEX 2001. In this paper, the ocean environment and sound field data obtained in this experiment are processed, and the basic characteristics of the internal wave and its The results show that there are soliton inner waves in this area, the maximum amplitude is up to 14 0 m. The internal waves are affected by half-day tide, full-day tide And sub-damp modulation.The internal waves are mainly controlled by the low-order modes.The effects of internal waves on the total energy, peak energy and delay time of acoustic signals propagating at different frequencies and along different paths are analyzed.