基于海洋声层析方法的海流流速反演研究
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- 英文论文题名：The current inversion method based on ocean acoustic tomograghy
- 论文作者：郝爽 ; 宋扬 ; 邢传玺
- 英文论文作者：HAO Shuang ; SONG Yang ; XING Chuan-xi ; Science and Technology on Underwater Acoustic Laboratory ; Harbin Engineering University ; College of Underwater Acoustic Engineering ; Harbin Engineering University ; School of Electrical and Information Engineering ; Yunnan Minzu University
- 年：2016
- 作者机构：哈尔滨工程大学水声技术重点实验室;哈尔滨工程大学水声工程学院;云南民族大学电气信息工程学院;
- 论文关键词：海洋声层析 ; 流速剖面反演 ; 海流
- 英文论文关键词：ocean acoustic tomography(OAT) ; profiles of currents inversion ; currents
- 会议召开时间：2016-08-21
- 会议录名称：2016’中国西部声学学术交流会论文集
- 语种：中文
- 分类号：P733.2
- 学会代码：SXJS
- 会议名称：2016’中国西部声学学术交流会
- 会议地点：中国四川成都
- 主办单位：中国声学学会微声学分会、中国声学学会物理声学分会、陕西省声学学会、浙江省声学学会、山东省声学学会、上海市声学学会、黑龙江省声学学会、水声技术重点实验室、重庆市声学学会、西安市声学学会、四川省声学学会
- 学会名称：《声学技术》编辑部
- 页数：3
- 文件大小：408k
- 原文格式：D
- 会议级别：全国
摘要
海洋声层析(OAT)通过测量双向声信号传播时间来实现对海流的观测。它可以不受航运和渔业活动等的限制,实现大面积、长期、连续的实时监测。目前海洋声层析已应用于多个海域的实验研究。本文介绍一种基于射线理论的海洋声层析方法。根据射线的仿真结果,利用射线的传播时间差来构建海流的垂直剖面。仿真结果表明,反演的流速与预设的流速值基本吻合,此方法能够较准确的反演分层海流的流速。
Ocean acoustic tomography(OAT) is used to observe currents through measuring travel times of reciprocal acoustic signal. The OAT is proposed as a technology to make extensive long-term, and consecutive real-time monitoring of currents because the systems are not influenced by the activities of shipping and fishing. It has been applied to the researches of many sea areas. In this paper, a method is introduced which is based on the eigenray theory. Based on the result of ray simulation, the differential travel times from these rays are used to reconstruct the vertical profiles of currents. The inversion results are compared with the simulated current data, and the effective of this method is proved.
Ocean acoustic tomography(OAT) is used to observe currents through measuring travel times of reciprocal acoustic signal. The OAT is proposed as a technology to make extensive long-term, and consecutive real-time monitoring of currents because the systems are not influenced by the activities of shipping and fishing. It has been applied to the researches of many sea areas. In this paper, a method is introduced which is based on the eigenray theory. Based on the result of ray simulation, the differential travel times from these rays are used to reconstruct the vertical profiles of currents. The inversion results are compared with the simulated current data, and the effective of this method is proved.
引文
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[2]Munk W,Wunsch C.Ocean Acoustic Tomography:A Scheme for Large Scale Monitoring[J].Deep-Sea Research,1979,26(2):123-161.
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[5]Dushaw B D,Howe B M,Cornuelle B D,et al.Barotropic and Baroclinic Tides in the Central North Pacific Ocean Determined from Long-Range Reciprocal Acoustic Transmissions[J].Journal of Physical Oceanography,1995,25(25):631-648.
[6]Taniguchi N,Huang C F,Kaneko A,et al.Measuring the Kuroshio Current with ocean acoustic tomography.[J].Journal of the Acoustical Society of America,2013,134(4):3272-81.
[7]Dushaw B D,Worcester P F,Cornuelle B D,et al.Barotropic currents and vorticity in the central North Pacific Ocean during summer 1987 determined from long-range reciprocal acoustic transmissions[J].Journal of Geophysical Research Atmospheres,1994,99(C2):3263-3272.
[8]Worcester P F,Spindel R C,Howe B M.Reciprocal acoustic transmissions:Instrumentation for Mesoscale monitoring of ocean currents[J].IEEE Journal of Oceanic Engineering,1985,10(2):123-137.
[2]Munk W,Wunsch C.Ocean Acoustic Tomography:A Scheme for Large Scale Monitoring[J].Deep-Sea Research,1979,26(2):123-161.
[3]Cornuelle B,Wunsch C,Behringer D,et al.Tomographic Maps of the Ocean Mesoscale.Part 1:Pure Acoustics[J].Journal of Physical Oceanography,1985,15(2):133-152.
[4]Cornuelle B D,Worcester P F,Hildebrand J A,et al.Ocean acoustic tomography at 1000‐km range using wavefronts measured with a large‐aperture vertical array[J].Journal of Geophysical Research Oceans,1993,98(C9):16365-16377.
[5]Dushaw B D,Howe B M,Cornuelle B D,et al.Barotropic and Baroclinic Tides in the Central North Pacific Ocean Determined from Long-Range Reciprocal Acoustic Transmissions[J].Journal of Physical Oceanography,1995,25(25):631-648.
[6]Taniguchi N,Huang C F,Kaneko A,et al.Measuring the Kuroshio Current with ocean acoustic tomography.[J].Journal of the Acoustical Society of America,2013,134(4):3272-81.
[7]Dushaw B D,Worcester P F,Cornuelle B D,et al.Barotropic currents and vorticity in the central North Pacific Ocean during summer 1987 determined from long-range reciprocal acoustic transmissions[J].Journal of Geophysical Research Atmospheres,1994,99(C2):3263-3272.
[8]Worcester P F,Spindel R C,Howe B M.Reciprocal acoustic transmissions:Instrumentation for Mesoscale monitoring of ocean currents[J].IEEE Journal of Oceanic Engineering,1985,10(2):123-137.