Continental shelf waves forced by nonlinear continental shelf topography

doi:10.1007/s11430-012-4463-7

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋环境与数值模拟研究室

	Continental shelf waves forced by nonlinear continental shelf topography
	Feng LiCheng 1; Chao JiPing 1,2
刊名	SCIENCE CHINA-EARTH SCIENCES
	2012-10
卷号	55 期号:10 页码:1702-1705
关键词	nonlinear continental shelf topography topographic Rossby wave unstable wave
ISSN号	1674-7313
DOI	10.1007/s11430-012-4463-7
英文摘要	The characteristics of continental shelf waves forced by nonlinear continental shelf topography are studied with a shallow-water model. Results show that there are two topographic Rossby waves and two inertia gravity waves. The northward propagating topographic Rossby wave couples with the inertia gravity wave into an unstable wave in the long wave band. When the continental slope is increased, the topographic Rossby wave still couples with the inertia gravity wave into an unstable wave, but the frequency decreases. In the South China Sea (SCS), the western boundary can develop an unstable wave because of topographic forcing, nonlinear conditions, and increasing amplitude. It is possible that the unstable wave develops into a vortex. In observations, the SCS has a strong western boundary current and abundant mesoscale vortice. There is a strong relationship between the emergence, disappearance, and movement of the circulation's multi-eddy structure and the seasonal evolvement of the SCS's circulation. This article shows a possible mechanism for the formation of vortices in the SCS.
资助项目	Science Foundation for Youth of the State Oceanic Administration of China[2010218]
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000309468700013
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/4066]
专题	业务部门_海洋环境与数值模拟研究室
作者单位	1.Natl Marine Environm Forecasting Ctr, Beijing 100081, Peoples R China; 2.State Oceanol Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Feng LiCheng,Chao JiPing. Continental shelf waves forced by nonlinear continental shelf topography[J]. SCIENCE CHINA-EARTH SCIENCES,2012,55(10):1702-1705.
APA	Feng LiCheng,&Chao JiPing.(2012).Continental shelf waves forced by nonlinear continental shelf topography.SCIENCE CHINA-EARTH SCIENCES,55(10),1702-1705.
MLA	Feng LiCheng,et al."Continental shelf waves forced by nonlinear continental shelf topography".SCIENCE CHINA-EARTH SCIENCES 55.10(2012):1702-1705.