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

文献类型：期刊论文

作者Hao, Zhanjiu1,2,3,4; Xu, Zhenhua1,2,3,4,5; Feng, Ming6; Zhang, Peiwen1,2,3; Yin, Baoshu1,2,3,4,5
刊名JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
出版日期2022-08-01
卷号127期号:8页码:18
关键词mesoscale eddy Indonesian Throughflow Mindanao Current Sulawesi Sea interannual variation Pacific western boundary current
ISSN号2169-9275
DOI10.1029/2022JC018815
通讯作者Xu, Zhenhua(xuzhenhua@qdio.ac.cn) ; Feng, Ming(ming.feng@csiro.au)
英文摘要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.
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
语种英语
WOS记录号WOS:000843317400001
出版者AMER GEOPHYSICAL UNION
源URL[http://ir.qdio.ac.cn/handle/337002/179928]  
专题海洋研究所_海洋生态与环境科学重点实验室
海洋研究所_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
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.

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来源：海洋研究所

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