海洋锋现象及其对水声传播的影响

发布时间：2018-03-20 15:57

本文选题：海洋锋　切入点：声传播　出处：《海洋预报》2015年05期 　论文类型：期刊论文

【摘要】：为了研究海洋锋对声传播的影响,借鉴黑潮引起的台湾海峡南部海洋锋的历史水文观测资料,提出并建立了适合描述台湾海峡南部海洋锋的数学模型及其声速表达式。通过与实测资料对比,建立的海洋锋模型能准确反映客观实际情况,表现出较好的效果。同时,在借鉴了前人研究经验的基础上,采用Argo实测资料,建立了台湾海峡南部海洋锋的数学模型及其声速表达式,利用MMPE水下声场模型进行了海洋声场数值模拟试验,对目标海区典型的声场结构进行了声线路径模拟和传播损失的计算仿真,并将实验结果通过与前人进行的实际大洋声场实验的结果比较,证实了本文的模拟结果是准确可信的,提高了水声数值模拟试验的准确有效性。
[Abstract]:In order to study the influence of ocean front on sound propagation, the historical hydrological observation data of the sea front in the southern Taiwan Strait caused by the Kuroshio are used for reference. A mathematical model suitable for describing the sea front in the south of the Taiwan Strait and its expression of sound velocity are proposed and established. By comparing with the measured data, the established model can accurately reflect the objective actual situation and show good results. On the basis of the previous research experience, the mathematical model and the expression of sound velocity of the ocean front in the southern Taiwan Strait are established by using the measured data of Argo. The numerical simulation experiments of the ocean sound field are carried out by using the MMPE underwater sound field model. The sound path simulation and propagation loss calculation of typical sound field structures in the target sea area are carried out. The experimental results are compared with the actual oceanic sound field experiments carried out by predecessors, and it is proved that the simulation results in this paper are accurate and reliable. The accuracy and validity of underwater acoustic numerical simulation test are improved.
【作者单位】：海军海洋水文气象中心;
【分类号】：P733.21

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