A three-dimensional modeling study on eddy-mean flow interaction between a Gaussian-type anticyclonic eddy and Kuroshio
Geng, W; Xie, Q; Chen, GX; Liu, QY; Wang, DX; gordonxie@idsse.ac.cn; dxwang@scsio.ac.cn
2018
发表期刊JOURNAL OF OCEANOGRAPHY
卷号74期号:1页码:23-37
摘要The Princeton ocean model is employed to study the energy balance of a fast-moving anticyclonic eddy (AE) during eddy-mean flow interaction. The AE is initialized with an axisymmetric Gaussian-type temperature profile and is placed to the east of the Philippine Islands. An energy analysis suggests that the advection term, pressure work and friction term play dominant roles in the initial eddy decay. During the strong interaction stage, barotropic instability (BTI) becomes the main force for the eddy kinetic energy (EKE) production, with the largest positive BTI in the interaction zone, which means that the eddy always obtains kinetic energy from the Kuroshio during this stage. Most of the EKE dissipation, the large conversion from the eddy available potential energy to the EKE and that from the mean kinetic energy to the EKE all occur at the upper layer during the strong interaction stage. When the AE interacts with the mean flow on the eastern side of the Kuroshio, whether the AE gains kinetic energy from the Kuroshio or loses kinetic energy to the Kuroshio is mainly determined by its shape in the interaction zone.
部门归属[Geng, Wu; Chen, Gengxin; Liu, Qinyan; Wang, Dongxiao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, 164 West Xingang Rd, Guangzhou 510301, Guangdong, Peoples R China; [Geng, Wu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Xie, Qiang] Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China; [Xie, Qiang] Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao 266071, Peoples R China
关键词Energy Analysis Kuroshio Luzon Strait Eddy Eddy Kinetic Energy Eddy-mean Flow Interaction
学科领域Oceanography
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/17102
专题热带海洋环境国家重点实验室(LTO)
通讯作者gordonxie@idsse.ac.cn; dxwang@scsio.ac.cn
推荐引用方式
GB/T 7714
Geng, W,Xie, Q,Chen, GX,et al. A three-dimensional modeling study on eddy-mean flow interaction between a Gaussian-type anticyclonic eddy and Kuroshio[J]. JOURNAL OF OCEANOGRAPHY,2018,74(1):23-37.
APA Geng, W.,Xie, Q.,Chen, GX.,Liu, QY.,Wang, DX.,...&dxwang@scsio.ac.cn.(2018).A three-dimensional modeling study on eddy-mean flow interaction between a Gaussian-type anticyclonic eddy and Kuroshio.JOURNAL OF OCEANOGRAPHY,74(1),23-37.
MLA Geng, W,et al."A three-dimensional modeling study on eddy-mean flow interaction between a Gaussian-type anticyclonic eddy and Kuroshio".JOURNAL OF OCEANOGRAPHY 74.1(2018):23-37.
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