Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| The Three-Dimensional Internal Tide Radiation and Dissipation in the Mariana Arc-Trench System | |
Zhao, Chen1,3,4; Xu, Zhenhua1,2,3,4,5; Robertson, Robin6; Li, Qun7; Wang, Yang1,2,3,4 ; Yin, Baoshu1,2,3,4,5
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| 2021-05-01 | |
| 发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
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| ISSN | 2169-9275 |
| 卷号 | 126期号:5页码:23 |
| 通讯作者 | Xu, Zhenhua(xuzhenhua@qdio.ac.cn) |
| 摘要 | Internal tides are energetic in the Mariana arc, but their three-dimensional radiation and dissipation remain unexplored, particularly the trench-arc-basin impacts. Here, the generation, propagation and dissipation of M-2 internal tides over the Mariana area are examined using a series of observation-supported high-resolution simulations. The M-2 barotropic to baroclinic conversion rate amounts to 8.35 GW, of which two arc-shaped ridges contribute similar to 81% of the generated energy. The contributions to generation by the Mariana basin and deep trench are weak. Nevertheless, they are important in modulating the energy radiation and dissipation, since tidal beams can spread to these areas. The Mariana ridges radiate the westward-focused and eastward-spreading tidal beams. This is very consistent with the altimetric measurements. The resonance in the ridge center enhances the westward converging beam, which can travel across the Palau Ridge, 800 km away. In contrast, the eastward beams propagate over a limited lateral range, but can radiate and dissipate significant energy in the deep water column, reaching even to the abyssal Mariana trench. The direct estimation from the model results reveals the dissipation's multilayer vertical profile in the entire water column, and is well consistent with the finescale parameterization estimate based on vertical strain. However, the estimate of an oft-used energy balance method, which typically assumes an exponentially decaying vertical structure function for the dissipation rate based on distance above the seafloor, is largely inconsistent with the measurements. Our findings highlight the complexity of three-dimensional radiation paths and dissipation map of internal tides in the Mariana area. |
| 关键词 | Mariana Arc Abyssal Ocean internal tide numerical energy |
| DOI | 10.1029/2020JC016502 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Strategic Priority Research Program of Chinese Academy of Sciences[XDA22050202] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000] ; National Key Research and Development Program of China ; National Natural Science Foundation of China[92058202] ; National Natural Science Foundation of China[2017YFA0604102] ; National Natural Science Foundation of China[2016YFC1401404] ; National Natural Science Foundation of China[91858103] ; CAS Key Research Program of Frontier Sciences[QYZDB-SSW-DQC024] ; CAS Key Deployment Project of Center for Ocean Mega-Research of Science[COMS2020Q07] ; CAS-CSIRO Jointly Project[133244KYSB20190031] ; High Performance Computing Center at the IOCAS |
| WOS研究方向 | Oceanography |
| WOS类目 | Oceanography |
| WOS记录号 | WOS:000654462400035 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/176913 |
| 专题 | 海洋环流与波动重点实验室 |
| 通讯作者 | Xu, Zhenhua |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao, Peoples R China 6.Xiamen Univ Malaysia, China Asean Coll Marine Sci, Sepang, Malaysia 7.Polar Res Inst China, Shanghai, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所; 中国科学院海洋大科学研究中心 |
| 通讯作者单位 | 中国科学院海洋研究所; 中国科学院海洋大科学研究中心 |
| 推荐引用方式 GB/T 7714 | Zhao, Chen,Xu, Zhenhua,Robertson, Robin,et al. The Three-Dimensional Internal Tide Radiation and Dissipation in the Mariana Arc-Trench System[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2021,126(5):23. |
| APA | Zhao, Chen,Xu, Zhenhua,Robertson, Robin,Li, Qun,Wang, Yang,&Yin, Baoshu.(2021).The Three-Dimensional Internal Tide Radiation and Dissipation in the Mariana Arc-Trench System.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,126(5),23. |
| MLA | Zhao, Chen,et al."The Three-Dimensional Internal Tide Radiation and Dissipation in the Mariana Arc-Trench System".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 126.5(2021):23. |
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| JGR Oceans - 2021 - （4404KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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