Diapycnal Upwelling Over the Kyushu-Palau Ridge in the North Pacific Ocean
文献类型：期刊论文
| 作者 | Xiao, Xin1,2,3; Zhou, Chun1,2,3,4; Yang, Qingxuan1,2,3,4; Jing, Zhiyou5; Liu, Zhiyu6; Yuan, Dongliang4,7,8,9 ; Xu, Zhenhua10; Zhao, Wei1,2,3,4; Tian, Jiwei1,2,3,4,5
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| 刊名 | GEOPHYSICAL RESEARCH LETTERS
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| 出版日期 | 2023-09-28 |
| 卷号 | 50期号:18页码:11 |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2023GL104369 |
| 通讯作者 | Zhou, Chun(chunzhou@ouc.edu.cn) |
| 英文摘要 | A significant portion (& SIM;2.1 Sv, 1 Sv = 106 m3 s-1) of deep water penetrates into the Philippine Sea through the Yap-Mariana Junction, the sole passage of the Philippine Sea below 4,000 m, and is then upwelled into shallower layers, closing regional overturning circulation. Yet, the structure and variability of this diapycnal upwelling remain poorly understood. Here, we report on a fine-resolution hydrographic observation conducted at the most significant topographic feature in the Philippine Sea, the Kyushu-Palau Ridge (KPR). Enhanced mixing up to O(10-2) m2 s-1 near the KPR is manifested, indicating the presence of substantial upwelling herein. Besides, the ridge-related topography contributes more deep-water mass transformation than abyssal basins in the Philippine Sea. This study highlights the significant role of rough bathymetry features in generating diapycnal upwelling in the North Pacific. In the North Pacific, a significant portion of deep water from the Antarctic enters the Philippine Sea below 4,000 m, where it is upwelled into shallower layers, closing regional overturning circulation. However, where the deep water gains buoyancy in the deep Philippine Sea required to upwell into shallower layers remains largely unknown, rendering our understanding of the western Pacific overturning circulation incomplete. To fill this gap, we conducted observations at two transects over the Kyushu-Palau Ridge (KPR), the most significant topographic feature in the Philippine Sea. Based on this observational program, we reveal the mixing structure down to the bottom across the KPR and estimate the deep water transformation in the deep Philippine Sea. This study illuminates the role of ridge-related topography in driving diapycnal upwelling in the deep ocean and improves our understanding of the deep circulation in the North Pacific Ocean. A three-dimensional distribution of diapycnal mixing over the Kyushu-Palau Ridge is presentedThe spatially variable of mixing across the Kyushu-Palau Ridge results in varying vertical velocitiesThe Kyushu-Palau Ridge contributes more deep-water mass transformation than abyssal basins in the Philippine Sea |
| WOS关键词 | INTERNAL WAVES ; OVERTURNING CIRCULATION ; ROUGH TOPOGRAPHY ; KAENA RIDGE ; DEEP-OCEAN ; WATER ; TURBULENCE ; SHEAR ; DISSIPATION ; TRANSPORT |
| 资助项目 | National Natural Science Foundation of China[42076027] ; National Natural Science Foundation of China[92258301] ; National Natural Science Foundation of China[91858205] ; National Natural Science Foundation of China[41720104008] ; National Natural Science Foundation of China[91858204] ; Taishan Talents program[tsqn202306094] ; National Key R&D Program of China[2020YFA0608800] ; Laoshan Laboratory[2022LSL010304-4] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; Taishan Scholar Project of the Shandong province ; Kunpeng Outstanding Scholar Program of the FIO/MNR of China ; NSFC Shiptime Sharing Project[42049582] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:001065433500001 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/181768]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Zhou, Chun |
| 作者单位 | 1.Ocean Univ China, Sanya Oceanog Inst, Frontier Sci Ctr Deep Ocean Multispheres & Earth S, Qingdao Sanya, Peoples R China 2.Ocean Univ China, Sanya Oceanog Inst, Phys Oceanog Lab, Qingdao Sanya, Peoples R China 3.Ocean Univ China, Sanya Oceanog Inst, Key Lab Ocean Observat & Informat Hainan Prov, Sanya, Peoples R China 4.Laoshan Lab, Qingdao, Peoples R China 5.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Peoples R China 6.Xiamen Univ, Coll Ocean & Earth Sci, Dept Phys Oceanog, State Key Lab Marine Environm Sci, Xiamen, Peoples R China 7.Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Sci & Numer Modeling, Qingdao, Peoples R China 8.Shandong Key Lab Marine Sci & Numer Modeling, Qingdao, Peoples R China 9.Univ Chinese Acad Sci, Beijing, Peoples R China 10.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Xin,Zhou, Chun,Yang, Qingxuan,et al. Diapycnal Upwelling Over the Kyushu-Palau Ridge in the North Pacific Ocean[J]. GEOPHYSICAL RESEARCH LETTERS,2023,50(18):11. |
| APA | Xiao, Xin.,Zhou, Chun.,Yang, Qingxuan.,Jing, Zhiyou.,Liu, Zhiyu.,...&Tian, Jiwei.(2023).Diapycnal Upwelling Over the Kyushu-Palau Ridge in the North Pacific Ocean.GEOPHYSICAL RESEARCH LETTERS,50(18),11. |
| MLA | Xiao, Xin,et al."Diapycnal Upwelling Over the Kyushu-Palau Ridge in the North Pacific Ocean".GEOPHYSICAL RESEARCH LETTERS 50.18(2023):11. |
入库方式： OAI收割
来源：海洋研究所
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