A model study of Luzon cold eddies in the northern South China Sea

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	A model study of Luzon cold eddies in the northern South China Sea
	He, Yinghui; Cai, Shuqun; Wang, Dongxiao; He, Jianling
刊名	DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
	2015
卷号	97 页码:107-123
关键词	Luzon cold eddy Vertical structure Eddy energy Numerical model South China Sea
通讯作者	caisq@scsio.ac.cn
中文摘要	A variable-grid global ocean circulation model (MITgcm) was employed to study the effects of wind and Kuroshio intrusion on the Luzon cold eddies (LCEs) in the northern South China Sea (SCS). Study findings showed that there are two cold eddies northwest of the Luzon Island. The cold eddies above 300 m and below 500 m depth are referred to as the upper and lower layer LCE, respectively, based on their different generation sites, properties and dynamic mechanisms in these layers. In this study, the upper layer LCE was mainly induced by the winter wind stress curl in the SCS and generated northwest of the Luzon Island in late November, but it may have been weakened by the Kuroshio intrusion. It moved northwestward and decayed at about (115 degrees E, 20 degrees N) in late June. The center of the upper layer LCE tilted westward with increasing depth until March. The vorticity intensity of the upper layer LCE peaked in December to January and generally decreased with depth. The contributions of both wind stress curl and Kuroshio intrusion to the generation of the lower layer LCE were roughly equal. The lower layer LCE originated from a cold eddy, which moved westward from the Luzon Strait in August through October and then intensified by wind stress curl. Subsequently, it moved westward with a slight southward migration and finally decayed near the Xisha Islands in April to May. Its amplitude and radius reached a maximum around December, while the vorticity intensity peaked in January to February. (C) 2015 Elsevier Ltd. All rights reserved.
学科主题	Oceanography
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/15004]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	He, Yinghui,Cai, Shuqun,Wang, Dongxiao,et al. A model study of Luzon cold eddies in the northern South China Sea[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2015,97:107-123.
APA	He, Yinghui,Cai, Shuqun,Wang, Dongxiao,&He, Jianling.(2015).A model study of Luzon cold eddies in the northern South China Sea.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,97,107-123.
MLA	He, Yinghui,et al."A model study of Luzon cold eddies in the northern South China Sea".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 97(2015):107-123.