Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current

doi:10.1029/2018JC014333

QIBEBT-IR

	Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current
	Zhu, Yanan 1,2,3; Qiu, Bo 3; Lin, Xiaopei 1,2; Wang, Fan 2,4
	2018-09-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
卷号	123 期号:9 页码:6449-6462
摘要	Interannual variability in the mesoscale eddy field in the Agulhas Return Current (ARC) of 32-42 degrees S and 15-35 degrees E is investigated based on satellite altimeter observations and state estimate from the Estimating the Circulation and Climate of the Ocean, Phase II from 1993 to 2016. It is found that the interannual modulation of eddy kinetic energy in the ARC region is externally mediated by the wind stress forcing that generates the westward propagating sea surface height anomalies across the South Indian Ocean subtropical gyre. The wind-forced sea surface height anomalies influence the upstream Agulhas Current volume transports. By modulating the intensity of barotropic instability of the ARC mean flow centered around the retroflection region, the Agulhas Current inflow variability leads to the downstream interannual eddy kinetic energy fluctuations in the ARC region.
关键词	eddy kinetic energy Agulhas Return Current interannual variability
DOI	10.1029/2018JC014333
关键词[WOS]	ATLANTIC OVERTURNING CIRCULATION ; GENERAL-CIRCULATION ; SOUTH-ATLANTIC ; RING FORMATION ; DECADAL VARIABILITY ; INDIAN-OCEAN ; RETROFLECTION ; SYSTEM ; MODEL ; DYNAMICS
语种	英语
资助项目	China's National Key Research and Development Projects[2016YFA0601803] ; National Natural Science Foundation of China[41490641] ; National Natural Science Foundation of China[41521091] ; National Natural Science Foundation of China[U1606402] ; Qingdao National Laboratory for Marine Science and Technology[2017ASKJ01] ; China Scholarship Council
WOS研究方向	Oceanography
项目资助者	China's National Key Research and Development Projects ; National Natural Science Foundation of China ; Qingdao National Laboratory for Marine Science and Technology ; China Scholarship Council
WOS类目	Oceanography
WOS记录号	WOS:000447552600024
出版者	AMER GEOPHYSICAL UNION
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/11770
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Qiu, Bo
作者单位	1.Ocean Univ China, Phys Oceanog Lab, CIMST, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 3.Univ Hawaii Manoa, Dept Oceanog, Honolulu, HI 96822 USA 4.Chinese Acad Sci, CAS Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Yanan,Qiu, Bo,Lin, Xiaopei,et al. Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2018,123(9):6449-6462.
APA	Zhu, Yanan,Qiu, Bo,Lin, Xiaopei,&Wang, Fan.(2018).Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,123(9),6449-6462.
MLA	Zhu, Yanan,et al."Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 123.9(2018):6449-6462.