Energetics of eddy-mean flow interactions in the western tropical Pacific Ocean
文献类型：期刊论文
| 作者 | Hui, Yuchao2; Zhang, Linlin1,2; Yan, Xiaomei2; Li, Mengmeng2 ; Wang, Fan1,2; Hu, Dunxin1,2
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| 刊名 | DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
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| 出版日期 | 2024-06-01 |
| 卷号 | 208页码:12 |
| 关键词 | Mesoscale eddy Eddy-mean flow interaction Barotropic instability Baroclinic instability Western tropical Pacific ocean |
| ISSN号 | 0967-0637 |
| DOI | 10.1016/j.dsr.2024.104294 |
| 通讯作者 | Zhang, Linlin(zhanglinlin@qdio.ac.cn) |
| 英文摘要 | The eddy-mean flow interactions are critical processes in the ocean energy cycle. This study investigated the energetics of eddy-mean flow interactions in the western tropical Pacific Ocean using the multiscale window transform (MWT) and MWT-based canonical transfer theory, based on 16-year numerical outputs from the Ocean General Circulation Model for the Earth Simulator and two mooring measurements. Energy analysis revealed that prominent eddy kinetic energy (EKE) appears in the upper layer of the Sulawesi Sea and the source region of North Equatorial Countercurrent (NECC), and in the subsurface layer along the Philippine coast. The kinetic energy in the upper layer is mainly transferred from the mean flow to the eddy field through barotropic instability. Below the thermocline, the prominent subsurface EKE is not only caused by barotropic conversion, but also by baroclinic one. Subsurface mesoscale eddies east of the Mindanao Island extract energy from mean flow through barotropic instability, and those further north seem to release their kinetic energy to the mean flow of North Equatorial Undercurrent, indicating inverse energy cascades. Our results highlight that the advection effect plays a key role in the horizontal distribution of EKE, which generally shifts the high EKE area a few degrees downstream from the eddy formation region. Particularly, in the source region of NECC, the advection term shifts the EKE center 5 degrees eastward from similar to 132 degrees E to similar to 137 degrees E. |
| WOS关键词 | NORTH EQUATORIAL CURRENT ; MINDANAO CURRENT ; KINETIC-ENERGY ; VARIABILITY ; GENERATION ; COUNTERCURRENT ; CIRCULATION ; MODULATIONS ; KUROSHIO ; CURRENTS |
| 资助项目 | National Natural Science Foundation of China[42122041] ; National Natural Science Foundation of China[42306004] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42010105] ; Project of Science and Technology Innovation of Laoshan Laboratory[LSKJ202201702] ; TS Scholar Program[tsqn202103128] ; Qingdao Postdoctoral Science Foundation[QDBSH20230102025] ; NSFC Shiptime Sharing Project[41849909] |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001293920800001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/199591]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Zhang, Linlin |
| 作者单位 | 1.Laoshan Lab, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Observat & Forecasting, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hui, Yuchao,Zhang, Linlin,Yan, Xiaomei,et al. Energetics of eddy-mean flow interactions in the western tropical Pacific Ocean[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2024,208:12. |
| APA | Hui, Yuchao,Zhang, Linlin,Yan, Xiaomei,Li, Mengmeng,Wang, Fan,&Hu, Dunxin.(2024).Energetics of eddy-mean flow interactions in the western tropical Pacific Ocean.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,208,12. |
| MLA | Hui, Yuchao,et al."Energetics of eddy-mean flow interactions in the western tropical Pacific Ocean".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 208(2024):12. |
入库方式： OAI收割
来源：海洋研究所
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