Interaction of algebraic Rossby solitary waves with topography and atmospheric blocking

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Interaction of algebraic Rossby solitary waves with topography and atmospheric blocking
	Yang, Hongwei 1; Yang, Dezhou 2,3; Shi, Yunlong2,3 ; Jin, Shanshan 4; Yin, Baoshu 2,3
刊名	DYNAMICS OF ATMOSPHERES AND OCEANS
	2015-09-01
卷号	71 期号:2015 页码:21-34
关键词	MBO-mKdV-Burgers equation Rossby solitary waves Atmospheric blocking Solitary waves breakup Damping oscillation
英文摘要	In this article, a new equation governing the behavior of Rossby solitary waves is derived by employing perturbation expansions and stretching transformations of time and space, which is called mBO-mKdV-Burgers equation. The equation is different from the common BO equation, it is more suitable for describing the Rossby solitary waves when the perturbation is stronger. Based on the analytical solution of mBO-mKdV-Burgers equation, the features of Rossby solitary waves including conserved laws, fission property and dissipation effect are studied. It is found that dissipation causes the amplitude and speed of solitary waves decrease; breakup phenomenon will happen during propagation. Finally, numerical simulation is carried out to investigate the effect of detuning parameter alpha, topographical altitude and dissipation on the interaction of Rossby solitary waves with topography. It is pointed out that with decreasing of detuning parameter alpha, the propagation speed of solitary waves decreases and the interaction time increases, which is beneficial to form the large amplitude disturbance; with increasing of topographical altitude, the free solitary waves can not cross over topography; decreasing detuning parameter alpha and increasing topographical altitude are both mechanisms to generate atmospheric blocking; with the occurence of small dissipation, damping oscillation phenomenon will happen. (C) 2015 Elsevier B.V. All rights reserved.
收录类别	SCI
语种	英语
WOS记录号	WOS:000361404200002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/50878]
专题	海洋研究所_海洋环流与波动重点实验室
作者单位	1.Shandong Univ Sci & Technol, Coll Math & Syst Sci, Qingdao 266590, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Key Lab Ocean Circulat & Wave, Qingdao 266071, Peoples R China 4.SOA, Inst Oceanog 1, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Yang, Hongwei,Yang, Dezhou,Shi, Yunlong,et al. Interaction of algebraic Rossby solitary waves with topography and atmospheric blocking[J]. DYNAMICS OF ATMOSPHERES AND OCEANS,2015,71(2015):21-34.
APA	Yang, Hongwei,Yang, Dezhou,Shi, Yunlong,Jin, Shanshan,&Yin, Baoshu.(2015).Interaction of algebraic Rossby solitary waves with topography and atmospheric blocking.DYNAMICS OF ATMOSPHERES AND OCEANS,71(2015),21-34.
MLA	Yang, Hongwei,et al."Interaction of algebraic Rossby solitary waves with topography and atmospheric blocking".DYNAMICS OF ATMOSPHERES AND OCEANS 71.2015(2015):21-34.