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Interaction of algebraic Rossby solitary waves with topography and atmospheric blocking
Yang, Hongwei1; Yang, Dezhou2,3; Shi, Yunlong2,3; Jin, Shanshan4; Yin, Baoshu2,3
2015-09-01
发表期刊DYNAMICS OF ATMOSPHERES AND OCEANS
卷号71期号:2015页码:21-34
文章类型Article
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.
关键词Mbo-mkdv-burgers Equation Rossby Solitary Waves Atmospheric Blocking Solitary Waves Breakup Damping Oscillation
DOI10.1016/j.dynatmoce.2015.05.001
收录类别SCI
语种英语
WOS记录号WOS:000361404200002
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/50878
专题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
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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.
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