9 Result(s)
within
Luo **hai
Geophysics/Geodesy
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Article
Study of the optimal precursors for blocking events
The precursors of dipole blocking are obtained by a numerical approach based upon a quasi-geostrophic barotropic planetary-to synoptic-scale interaction model without topography and with a localized synopticsc...
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Article
Review of the study of nonlinear atmospheric dynamics in China (1999–2002)
Researches on nonlinear atmospheric dynamics in China (1999–2002) are briefly surveyed. This review includes the major achievements in the following branches of nonlinear dynamics: nonlinear stability theory, ...
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Article
Life cycles of blocking flows associated with synoptic—scale eddies: Observed results and numerical experiments
An observational study is presented to confirm that the life cycle of blocking associated with synoptic—scale eddies is a transfer process between dispersion and nondispersion. In addition, numerical experimen...
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Article
Interaction between a slowly moving planetary—scale dipole envelope rossby soliton and a wavenumber— two topography in a forced higher order nonlinear Schrödinger equation
A parametrically excited higher—order nonlinear Schrödinger (NLS) equation is derived to describe the interaction of a .slowly moving planetary—scale envelope Rossby soliton for zonal wavenumber-two with a wav...
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Article
Barotropic interaction between planetary- and synoptic-scale waves during the life cycles of blockings
In this paper, in an equivalent barotropic framework a new forced nonlinear Schroedinger equation is proposed to examine the interaction between the planetary-scale waves and the localized synoptic-scale eddie...
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Article
Nonlinear three- wave interaction among barotropic rossby waves in a large- scale forced barotropic flow
In this paper, the coupling equations describing nonlinear three-wave interaction among Rossby waves including the forcing of an external vorticity source are obtained. Under certain conditions, the coupling e...
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Article
Topographically forced three-wave quasi-esonant and non-resonant interactions among barotropic rossby waves on an infinnite beta-plane
In this paper, we first apply the assumption h = εh′ of topographic variation (h is the nondimensional topographic height and is a small parameter) to obtain nonlinear equations describing three-wave quasi-resona...
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Article
The role of topography and diabatic heating in the formation of dipole blocking in the atmosphere
In this paper, the nonlinear stationary waves forced by topography and diabatic heating are investigated. It is pointed out that (1) the nonlinear interaction of different stationary waves forced only by topog...
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Article
Algebraic rossby solitary wave and blocking in the atmosphere
In this paper, the atmosphere is divided into two regions which are governed by different equations. Furthermore, multiple-scale method is used to obtain the Benjamin-Ono equation satisfied by the nonlinear Ro...
