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| 基于PIES观测东沙群岛附近声传播变化 |
| 郭平,徐永生,黄超,张林,张庆君,张利强,彭泳卿,张祥光,徐立军,王黎明,袁延茂,马树青,杨亮,尹善明 |
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| (中国科学院海洋研究所，山东 青岛266071;中国科学院大学，北京 100049;崂山实验室，山东 青岛 266071;海军潜艇学院海军战术水声数据中心，山东 青岛266071;中国空间技术研究院遥感卫星总体部，北京100094;北京遥测技术研究所，北京 100076;北京理工大学，北京 100081;中国人民解放军海军工程大学，湖北 武汉 430033;92859部队，天津 300061;国防科技大学气象海洋学院，湖南 长沙 410073;91001部队，北京 100181;91650部队，广东 广州 510200) |
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| 摘要: |
| 本研究旨在将PIES观测数据应用于海洋水声环境的监测。利用一次南海PIES观测数据，反演得到温盐剖面，进而计算声场信息。结合观测期间的暖涡及台风事件对反演及计算结果进行了分析验证。结果表明，PIES能够在长期连续观测中较为敏感地捕获上层水体及表面声道的变化特征，为水声通信、探测及潜航路径规划等提供参考，在水声研究及海洋军事环境保障中都具有良好的应用前景。 |
| 关键词: 海洋声学 PIES 声传播 表面声道 截止频率 声速剖面 |
| DOI：10.3969/J.ISSN.2095-4972.20230206001 |
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| 基金项目:崂山实验室科技创新项目(LSKJ202201406)；国家自然科学基金(U22A20587)；中国科学院战略性先导科技专项(XDB42000000) |
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| Study on the sound propagation characteristics based on PIES observations near Dongsha Islands |
| GUO Ping,XU Yongsheng,HUANG Chao,ZHANG Lin,ZHANG Qingjun,ZHANG Liqiang,PENG Yongqing,ZHANG Xiangguang,XU Lijun,WANG Liming,YUAN Yanmao,MA Shuqing,YANG Liang,YIN Shanming |
| (Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy of Sciences, Beijing 100049, China;Laoshan Laboratory, Qingdao 266071，China;Navy Tactical Underwater Acoustics Data Center, Navy Submarine Academy,Qingdao 266071, China;Institute of Remote Sensing Satellite, China Academy of Space Technology, Beijing 100094, China;Beijing Research Institute of Telemetry, Beijing 100076, China;Beijing Institute of Technology, Beijing 100081, China;Naval University of Engineering, Wuhan 430033, China;92859 Troops, Tianjin 300061, China;College of Meteorology and Oceanology, National University of Defense Technology, Changsha 410073, China;Unit No. 91001, Beijing 100181, China;91650 Troops, Guangzhou 510200, China) |
| Abstract: |
| The aim of this paper is to apply PIES observations to the monitoring of the marine hydroacoustic environment. The paper uses one PIES observation in the South China Sea to invert the temperature and salt profiles, and then calculates the acoustic field information. The inversion and calculation results are analysed and verified with the warm eddies and typhoon events during the observation period, and results show that PIES can more sensitive capture the variation characteristics of the upper water body and the surface acoustic channel in long-term continuous observation, which can provide a reference for hydroacoustic communication, detection and submarine path planning, and has a good prospect of application in the hydroacoustic research and the protection of marine military environment. |
| Key words: marine acoustics PIES sound propagation characteristics surface sound duct cut off frequency sound speed profile |