中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 海洋研究所
  3. 中国科学院海洋研究所
  4. 海洋环流与波动重点实验室
Characteristics and dynamics of the interannual eddy kinetic energy variation in the Western Equatorial Pacific Ocean

文献类型：期刊论文

作者Liu, Xueqi1; Zhou, Hui1,4,5; Liu, Hengchang2,3; Yang, Wenlong1
刊名PROGRESS IN OCEANOGRAPHY
出版日期2024-12-01
卷号229页码:14
关键词Eddy kinetic energy Western equatorial Pacific Ocean Interannual variations Barotropic and baroclinic instability Eddy-mean flow interaction EP-El Nino CP-El Nino
ISSN号0079-6611
DOI10.1016/j.pocean.2024.103358
通讯作者Zhou, Hui(zhouhui@qdio.ac.cn)
英文摘要The interannual variations of eddy kinetic energy (EKE) in the western equatorial Pacific Ocean are investigated based on satellite observations and model outputs in this study. Results reveal that the EKE exhibits vigorous interannual variations, especially in the region of North Equatorial Countercurrent (NECC) and north of New Guinea, and the variations differ between the two types of El Nino events. The energy budget diagnosis indicates that the EKE variations are mainly attributed to the barotropic instability associated with the background currents. Specifically, the energetic NECC behaves northward shift and a stronger meander path, which favors the enhancement of EKE variations due to the enhanced barotropic instability. The interannual fluctuations of the strength of the New Guinea Coastal Current/Undercurrent (NGCC/NGCUC) and the eastward current along the equator contribute to the significant EKE interannual variations north of New Guinea. Further, the distinct features of EKE variations in two types of El Nino events are as follows: EKE typically weakens in the western equatorial Pacific during Eastern Pacific El Nino (EP-El Nino) events, whereas it intensifies north of New Guinea during Central Pacific El Nino (CP-El Nino) events. The opposite features north of New Guinea are attributed to the wind work and a stronger eastward current along the equator in CP-El Nino events. These results can contribute to a better understanding of the low-frequency eddy-mean flow interactions.
WOS关键词TROPICAL PACIFIC ; BOUNDARY CURRENTS ; MESOSCALE EDDIES ; MINDANAO CURRENT ; EL-NINO ; VARIABILITY ; CIRCULATION ; KUROSHIO ; WATER ; COUNTERCURRENT
资助项目National Natural Science Foundation of China (NSFC)[42306002] ; National Natural Science Foundation of China (NSFC)[42276012] ; Science and Technology Innovation Project of Laoshan Laboratory[LSKJ202202502] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; Key Collaborative Research Program of the Alliance of International Science Organizations[ANSO-CR-KP-2022-08]
WOS研究方向Oceanography
语种英语
WOS记录号WOS:001330887000001
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://ir.qdio.ac.cn/handle/337002/199309]  
专题海洋研究所_海洋环流与波动重点实验室
通讯作者Zhou, Hui
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Observat & Forecasting, Key Lab Ocean Circulat & Waves, Qingdao 266400, Peoples R China
2.State Key Lab Geoinformat Engn, Xian 710054, Peoples R China
3.Beijing Inst Appl Meteorol, Beijing 100029, Peoples R China
4.Laoshan Lab, Qingdao, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Xueqi,Zhou, Hui,Liu, Hengchang,et al. Characteristics and dynamics of the interannual eddy kinetic energy variation in the Western Equatorial Pacific Ocean[J]. PROGRESS IN OCEANOGRAPHY,2024,229:14.
APA Liu, Xueqi,Zhou, Hui,Liu, Hengchang,&Yang, Wenlong.(2024).Characteristics and dynamics of the interannual eddy kinetic energy variation in the Western Equatorial Pacific Ocean.PROGRESS IN OCEANOGRAPHY,229,14.
MLA Liu, Xueqi,et al."Characteristics and dynamics of the interannual eddy kinetic energy variation in the Western Equatorial Pacific Ocean".PROGRESS IN OCEANOGRAPHY 229(2024):14.

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。