Migration of mesoscale eddies across a leaping or penetrating western boundary current in the vicinity of a gap

IOCAS-IR

	Migration of mesoscale eddies across a leaping or penetrating western boundary current in the vicinity of a gap
	Song XX(宋新新); Yuan DL(袁东亮); Li RX(李锐祥); Wang Z(王铮)
发表期刊	Journal of Oceanology and Limnology
ISSN	2096-5508
	2018-11-15
出版年	2018
卷号	v.36 期号:06 页码:200-211
文献类型	CNKI期刊论文
摘要	A 1.5-layer quasi-geostrophic reduced gravity ocean circulation model is used to study the propagation of mesoscale eddies across a western boundary current(WBC) either leaping across or penetrating in an anti-cyclonic path through the gap. The steady leaping WBC nearly blocks all eddies from propagating across it through the gap completely. However, both cyclonic and anti-cyclonic eddies can migrate across a penetrating WBC in the vicinity of a gap, while inducing an opposite type of eddies on the cyclonic side of the WBC by weakening or strengthening the intrusion of the WBC. Both type of eddies gained strength from the WBC in the course of the propagation across the WBC in the gap. Eddies approaching the gap from the upstream are found to migrate more easily into the western basin due to the advection of the WBC. The migration speeds of the eddies are almost unchanged by the presence of the WBC in all experiments.
关键词	mesoscale eddy Western Boundary Current gap
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A009;A010;
CNKI专题名称	气象学;海洋学;
分类号	P732.6
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Supported by the National Program on Global Change and Air-Sea Interaction(Nos.GASI-03-01-01-05,GASI-IPOVAI-01-02,GASIIPOVAI-02,GASI-IPOVAI-03,GASI-IPOVAI-01-05,GASI-03-01-01-02) ; the National Natural Science Foundation of China(Nos.41421005,41720104008,41476025,41376038,41206019) ; the Shandong Joint Fund for Marine Science Research Centers(Nos.U1606402,U1606405) ; the CAS Strategic Priority Project(No.XDA11010205) ; the Scientific and Technological Innovation Project of Qingdao National Laboratory for Marine Science and Technology(No.2016ASKJ04) ; the National Science and Technology Major Project(No.2016ZX05057015) ; the Open Fund of Shandong Provincial Key Laboratory of Marine Ecology and Environment & Disaster Prevention and Mitigation(No.201701)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/188728
专题	中国科学院海洋研究所
作者单位	1.KeyLaboratoryofOceanCirculationandWaves,InstituteofOceanology,ChineseAcademyofSciences,andFunctionLaboratoryforOceanDynamicsandClimate,QingdaoNationalLaboratoryforMarineScienceandTechnology 2.KeyLaboratoryofMarineScienceandNumericalModeling,FirstInstituteofOceanography,StateOceanicAdministration,andLaboratoryforRegionalOceanographyandNumericalModeling,QingdaoNationalLaboratoryforMarineScienceandTechnology 3.UniversityofChineseAcademyofSciences 4.SouthChinaSeaMarineSurveyandTechnologyCenter,StateOceanicAdministration
推荐引用方式 GB/T 7714	Song XX,Yuan DL,Li RX,et al. Migration of mesoscale eddies across a leaping or penetrating western boundary current in the vicinity of a gap. 2018.