Different types of subsurface acoustic ducts in the North Pacific
文献类型：期刊论文
| 作者 | Xu, Anqi3,4; Yu, Fei1,2,3,4,5; Nan, Feng1,2,3,4,5; Diao, Xinyuan1,2,3,4,5 |
| 刊名 | JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
 |
| 出版日期 | 2025-10-01 |
| 卷号 | 158期号:4页码:3048-3062 |
| ISSN号 | 0001-4966 |
| DOI | 10.1121/10.0039545 |
| 通讯作者 | Yu, Fei(yuf@qdio.ac.cn) |
| 英文摘要 | Subsurface acoustic ducts are essential for underwater communication by enabling long-range acoustic propagation with minimal interaction with the sea surface or seafloor. This study performs an in-depth analysis of subsurface ducts in the North Pacific using a large set of Argo profiling floats. By applying the Gaussian mixture model, we classify the ducts into distinct types linked to specific water masses and oceanographic processes. Results show that subsurface ducts show strong regional variability. The subarctic front, defined as the southern boundary of subarctic stratification, serves as a key boundary in duct distribution. North of the front and south of the Aleutian Islands, subsurface ducts are nearly permanent. South of the front, subsurface ducts are driven by the intrusion of warmer subtropical water beneath colder subarctic water in the subarctic-tropical frontal zone. In the subtropical region, the isothermal layer of subtropical mode water can also give rise to subsurface ducts with a duct axis at 150-200 m. Additionally, sound simulations across 50-1000 Hz reveal the frequency-dependent characteristics of these ducts, with critical frequencies varying by duct type. (c) 2025 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
| WOS关键词 | BEAUFORT SEA ; UNSUPERVISED CLASSIFICATION ; TRANSMISSION LOSS ; SOUND CHANNEL ; OCEAN ; PROPAGATION ; WATER |
| 资助项目 | the National Science Foundation of China[42306024] ; National Science Foundation of China[GZC20232708] ; Postdoctoral Fellowship Program of China Postdoctoral Science Foundation[QDBSH20240102142] ; Qingdao Municipal Bureau of Human Resources and Social Security Grant |
| WOS研究方向 | Acoustics ; Audiology & Speech-Language Pathology |
| 语种 | 英语 |
| WOS记录号 | WOS:001597765100001 |
| 出版者 | ACOUSTICAL SOC AMER AMER INST PHYSICS |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/203632]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Yu, Fei |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100000, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266000, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266000, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Observat & Forecasting, Qingdao 266000, Peoples R China 5.Qingdao Marine Sci & Technol Ctr, Lab Ocean Dynam & Climate, Qingdao 266000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Anqi,Yu, Fei,Nan, Feng,et al. Different types of subsurface acoustic ducts in the North Pacific[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2025,158(4):3048-3062. |
| APA | Xu, Anqi,Yu, Fei,Nan, Feng,&Diao, Xinyuan.(2025).Different types of subsurface acoustic ducts in the North Pacific.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,158(4),3048-3062. |
| MLA | Xu, Anqi,et al."Different types of subsurface acoustic ducts in the North Pacific".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 158.4(2025):3048-3062. |
入库方式： OAI收割
来源：海洋研究所
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