Dynamics of Interannual Eddy Kinetic Energy Variability in the Sulawesi Sea Revealed by OFAM3

doi:10.1029/2022JC018815

	Dynamics of Interannual Eddy Kinetic Energy Variability in the Sulawesi Sea Revealed by OFAM3
	Hao, Zhanjiu 1,2,3,4; Xu, Zhenhua 1,2,3,4,5; Feng, Ming 6; Zhang, Peiwen1,2,3 ; Yin, Baoshu 1,2,3,4,5
	2022-08-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
卷号	127 期号:8 页码:18
通讯作者	Xu, Zhenhua([email protected]) ; Feng, Ming([email protected])
摘要	Interannual variations in eddy kinetic energy (EKE) in the Sulawesi Sea and their driving mechanisms are investigated based on the outputs of Ocean Forecasting Australia Model version 3 from 1979 to 2014. The interannual EKE variability is found to be primarily modulated by the Mindanao Current intrusion transport (MCIT). By regulating the intensity of barotropic instability of the cyclonic loop current in the Sulawesi Sea, the MCIT fluctuation leads to the downstream interannual EKE variations. Further analysis suggests that the paths of Mindanao Current (MC) and New Guinea Coastal Current and Undercurrent (NGCC/NGCUC) influence the interannual MCIT variability. During high-EKE periods, the NGCC/NGCUC is weakened, and the MC retroflection extends to south of 5 degrees N, which causes MCIT to increase by 0.60 Sv and strengthens the barotropic energy conversion from mean kinetic energy to EKE in the Sulawesi Sea. During low-EKE periods, the NGCC/NGCUC is intensified whereas the MC retroflection retreats to a northernmost path, resulting in a decrease of 0.58 Sv in MCIT and thus a low EKE level. In addition, mesoscale eddies to the east of the Sulawesi Sea in the western Pacific also have an impact on the MC intrusion. This study highlights the significance of the nonlinear dynamics of western boundary currents in modulating eddy activities in the formation region of the Indonesian Throughflow.
关键词	mesoscale eddy Indonesian Throughflow Mindanao Current Sulawesi Sea interannual variation Pacific western boundary current
DOI	10.1029/2022JC018815
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000]; Strategic Priority Research Program of Chinese Academy of Sciences[92058202]; Strategic Priority Research Program of Chinese Academy of Sciences[XDA22050202]; National Natural Science Foundation of China[XDB42000000]; National Natural Science Foundation of China[92058202]; National Natural Science Foundation of China[XDA22050202]; Shandong special funding for Qingdao Pilot National Laboratory for Marine Science and Technology[2022QNLM010302]; National Key Research and Development Program of China[2017YFA0604102]; CAS Key Deployment Project of Center for Ocean Mega-Research of Science[COMS2020Q07]; CAS-CSIRO Jointly Project[133244KYSB20190031]; Centre for Southern Hemisphere Ocean Research (CSHOR)
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000843317400001
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/179929
专题	海洋生态与环境科学重点实验室海洋环流与波动重点实验室
通讯作者	Xu, Zhenhua; Feng, Ming
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao, Peoples R China 6.Indian Ocean Marine Res Ctr, CSIRO Oceans & Atmosphere, Crawley, WA, Australia
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Hao, Zhanjiu,Xu, Zhenhua,Feng, Ming,et al. Dynamics of Interannual Eddy Kinetic Energy Variability in the Sulawesi Sea Revealed by OFAM3[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2022,127(8):18.
APA	Hao, Zhanjiu,Xu, Zhenhua,Feng, Ming,Zhang, Peiwen,&Yin, Baoshu.(2022).Dynamics of Interannual Eddy Kinetic Energy Variability in the Sulawesi Sea Revealed by OFAM3.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,127(8),18.
MLA	Hao, Zhanjiu,et al."Dynamics of Interannual Eddy Kinetic Energy Variability in the Sulawesi Sea Revealed by OFAM3".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 127.8(2022):18.