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The Research on Sound Propagation Experiment and Numerical Simulation in Continental Slope Environment of the Northern China Sea

Abstract

南海大陆架和大陆斜坡是由浅海向深海过渡的海区,拥有强烈的地形变化和 较为复杂的水文动力条件,是一种复杂的声传播环境。理解这些典型条件下的声 传播现象并掌握其规律对南海的国防建设、资源开发、交通运输等均具有重大意 义。 本文首先对季节性的海洋环境变化做了分析,500m深温度断面的比较表明 季节间的变化特别体现在混合层深度的增减上,反映在声速上的变化则是混合层 声道的深度的季节性变化,声速梯度基本结构没有变化。对四个季节的声传播损 失数据,首先进行了距离与深度上的平均,然后利用长期非静态(LTNS,Longtermnonstationary)均值来比较各季节声传播损失的相对变化。结果...As transitional areas from shallow sea to the deep ocean, continental shelf and slopes of the South China Sea involve intense topographical changes and intricate hydrographical conditions, which bring a typical un-regular sound propagation environment. To understand all kinds of sound propagation phenomenon in such an environment and its governing law are of great significance to military acti...学位:理学硕士院系专业:海洋与地球学院_物理海洋学学号:2232013115136

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This paper was published in Xiamen University Institutional Repository.

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