The role of eddy-wind interaction in the eddy kinetic energy budget of the Agulhas retroflection region

doi:10.1088/1748-9326/acfb9a

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	The role of eddy-wind interaction in the eddy kinetic energy budget of the Agulhas retroflection region
	Zhu, Yanan 1; Li, Yuanlong 1,3; Yang, Yang 2; Wang, Fan 1,3
刊名	ENVIRONMENTAL RESEARCH LETTERS
	2023-10-01
卷号	18 期号:10 页码:9
关键词	mesoscale eddies eddy kinetic energy mesoscale air-sea interaction Agulhas current South Indian Ocean western boundary currents
ISSN号	1748-9326
DOI	10.1088/1748-9326/acfb9a
通讯作者	Zhu, Yanan(yzhu@qdio.ac.cn) ; Wang, Fan(fwang@qdio.ac.cn)
英文摘要	The Agulhas retroflection (AR) region possesses the highest eddy kinetic energy (EKE) level in the Indian Ocean. However, mechanisms regulating EKE of the AR remain uncertain. Here, by analyzing an eddy-resolving coupled model simulation with improved EKE representation, we show that the upper-ocean EKE of the AR is mainly generated through barotropic instability in its upstream and leakage zones and is by nonlocal transport in its downstream zone. The interaction between mesoscale eddies and local winds plays a key role in EKE dissipation. The lack of eddy-wind interaction results in flawed EKE budget in the leakage zone in ocean-alone models, leading to severe biases in EKE distribution with overestimation and over-strong penetration into the South Atlantic. Our results highlight the essence of mesoscale air-sea interaction in the dynamics of the AR, with implications for understanding the inter-basin transport of the Agulhas leakage.
资助项目	This study is supported by the National Natural Science Foundation of China (42206010, 42022041, 42276017), and the Laoshan Laboratory (LSKJ202202601).[42206010] ; This study is supported by the National Natural Science Foundation of China (42206010, 42022041, 42276017), and the Laoshan Laboratory (LSKJ202202601).[42022041] ; This study is supported by the National Natural Science Foundation of China (42206010, 42022041, 42276017), and the Laoshan Laboratory (LSKJ202202601).[42276017] ; This study is supported by the National Natural Science Foundation of China (42206010, 42022041, 42276017), and the Laoshan Laboratory (LSKJ202202601).[LSKJ202202601] ; National Natural Science Foundation of China
WOS关键词	OCEAN ; VARIABILITY ; LEAKAGE ; SYSTEM ; ATMOSPHERE ; DYNAMICS ; CURRENTS
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001072189100001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/181820]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Zhu, Yanan; Wang, Fan
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Xiamen Univ, Coll Ocean & Earth Sci, State Key Lab Marine Environm Sci, Xiamen, Peoples R China 3.Laoshan Lab, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Yanan,Li, Yuanlong,Yang, Yang,et al. The role of eddy-wind interaction in the eddy kinetic energy budget of the Agulhas retroflection region[J]. ENVIRONMENTAL RESEARCH LETTERS,2023,18(10):9.
APA	Zhu, Yanan,Li, Yuanlong,Yang, Yang,&Wang, Fan.(2023).The role of eddy-wind interaction in the eddy kinetic energy budget of the Agulhas retroflection region.ENVIRONMENTAL RESEARCH LETTERS,18(10),9.
MLA	Zhu, Yanan,et al."The role of eddy-wind interaction in the eddy kinetic energy budget of the Agulhas retroflection region".ENVIRONMENTAL RESEARCH LETTERS 18.10(2023):9.