高分辨率全球准实时水文数据的海洋声学应用  

Ocean acoustic application of high-resolution global quasi-real-time ocean hydrological data

作　　者：徐妍 张晓娟 XU Yan;ZHANG Xiaojuan(Unit 91001 of Chinese People's Liberation Army,Beijing 100036,China)

机构地区：[1]中国人民解放军91001部队,北京100036

出　　处：《声学技术》2024年第4期488-494,共7页Technical Acoustics

摘　　要：为了满足海洋声学性能实时评估的需要,文章采用高分辨率全球准实时海洋水文数据库,以中国某海域为研究对象,结合三维可视化高精度地形/海深信息,选取水深为300 m和4000 m两块区域作为研究区域,通过全球高分辨率准实时海洋温、盐、深环境混合坐标大洋环流模式数据,实现区域水声环境信息获取。在工业计算机上,地形/海深数据、温盐深数据的处理时间分别为0.70 s和0.03 s,符合实际工程快速应用的需求,将准实时声学环境信息代入水声射线模型中,得出深度为300 m浅海选区以及深度为4000 m深海选区的水声场仿真结果,应用于海洋设备的声学性能评估,指导声学设备使用。该研究方法可应用于当前海洋声学设备性能评估,具有重要的实际应用价值。For the needs of real-time evaluation of ocean acoustic performance,a study is carried out in this paper by using the high-resolution global quasi-real-time ocean hydrological database and taking a certain sea area in China as the research object.Combined with the three-dimensional visualization high-resolution terrain/sea depth information in the two selected research areas about 300 m and 4000 m water depths,the regional acoustic environment information is obtained by using the global high-resolution quasi-real-time Hybrid Coordinate Ocean Model data of ocean temperature,salinity,and depth.The processing times of the industrial computer for bathymetric and hydrographic data are 0.70 s and 0.03 s respectively,which meet the requirements of rapid application in practical engineering.By inputting quasi-real-time acoustic environment information into the underwater acoustic ray model,the simulation results of the underwater acoustic field in the selected shallow-sea area about 300 m depth and deep-sea area about 4000 m depth are obtained,which can be applied in the acoustic performance evaluation of marine equipment and guide the use of acoustic equipment.This research method can facilitate the performance evaluation of current acoustic equipment and has important practical application value.

关 键 词：地形海深数据 海洋水文数据 数值海洋声学 水声设备性能评估 水声模型 

分 类 号：P76[天文地球—海洋科学]