Structure and Variability of the Kuroshio and Luzon Undercurrent Observed by a Mooring Array
文献类型：期刊论文
| 作者 | Ma, Jie2,5; Hu, Shijian1,2,3,5; Hu, Dunxin1,2,3,5; Villanoy, Cesar4; Wang, Qingye1,2,3,5; Lu, Xi1,2 ; Yuan, Xin1,2
|
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 127期号:2页码:12 |
| 关键词 | Kuroshio Luzon undercurrent mooring eddy variability |
| ISSN号 | 2169-9275 |
| DOI | 10.1029/2021JC017754 |
| 通讯作者 | Hu, Shijian(sjhu@qdio.ac.cn) |
| 英文摘要 | The spatial structure and variability of the western boundary currents east of Luzon Island at 18 degrees N are investigated using measurements collected by acoustic Doppler current profilers (ADCPs) from three moorings between January 2018 and May 2020. During the observation period, the southward velocity of Luzon Undercurrent (LUC) has a maximum greater than 0.04 m s-1 ${\mathrm{s}}<^>{-1}$ at about 800 m on average and instantaneously reaches a maximum speed of about 0.47 m s-1 ${\mathrm{s}}<^>{-1}$. Observations indicate that the LUC and Kuroshio have significant intraseasonal variability and the LUC is reversed occasionally. We find that the strong upper-layer anticyclonic eddy plays a key role in the weakening and reversal of LUC and that the LUC is a permanent mean undercurrent. A vertical mode decomposition analysis is employed and results show that the first two baroclinic modes explain the main vertical features of the LUC and Kuroshio at its origin. No reversal of the southward undercurrent occurs in the second baroclinic mode velocity. We conclude that the LUC variability is generally a result of the second baroclinic mode but the observed reversal of the LUC is mainly caused by the first mode. |
| 资助项目 | National Natural Science Foundation of China[42006002] ; National Natural Science Foundation of China[42022040] ; China Postdoctoral Science Foundation[2021T140674] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDB42010403] ; Shandong Provincial Natural Science Foundation[ZR2020JQ18] ; Key Projects of Foreign Cooperation of the Bureau of International Cooperation CAS[132B61KYSB20170005] ; Youth Innovation Promotion Association of CAS[2018240] ; CAS Interdisciplinary Innovation Team[JCTD-2020-12] |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000765614000023 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/178164]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Hu, Shijian |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao, Peoples R China 4.Univ Philippines Diliman, Quezon City, Philippines 5.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Jie,Hu, Shijian,Hu, Dunxin,et al. Structure and Variability of the Kuroshio and Luzon Undercurrent Observed by a Mooring Array[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2022,127(2):12. |
| APA | Ma, Jie.,Hu, Shijian.,Hu, Dunxin.,Villanoy, Cesar.,Wang, Qingye.,...&Yuan, Xin.(2022).Structure and Variability of the Kuroshio and Luzon Undercurrent Observed by a Mooring Array.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,127(2),12. |
| MLA | Ma, Jie,et al."Structure and Variability of the Kuroshio and Luzon Undercurrent Observed by a Mooring Array".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 127.2(2022):12. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。