Results 191 to 200 of about 645,962 (239)
Exact wave structures and bifurcation for the (2+1)-Dimensional bogoyavlensky-Konopelchenko equation using modified extended direct algebraic technique. [PDF]
MethodsXElhady MA +4 more
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Rossby Waves in Astrophysics [PDF]
Space Science Reviews, 2021 AbstractRossby waves are a pervasive feature of the large-scale motions of the Earth’s atmosphere and oceans. These waves (also known as planetary waves and r-modes) also play an important role in the large-scale dynamics of different astrophysical objects such as the solar atmosphere and interior, astrophysical discs, rapidly rotating stars, planetary
Zaqarashvili Teimuraz +2 more
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Studies in Applied Mathematics, 1995
An asymptotic solution of the linear shallow water equations for small Rossby number is constructed to describe Ross by waves. It leads to a dispersion or eiconal equation for the phase of the waves and a transport equation for their amplitude. It is shown how these equations can be solved by means of rays for both planetary and topographic Rossby ...
Knessl, Charles, Keller, Joseph B.
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An asymptotic solution of the linear shallow water equations for small Rossby number is constructed to describe Ross by waves. It leads to a dispersion or eiconal equation for the phase of the waves and a transport equation for their amplitude. It is shown how these equations can be solved by means of rays for both planetary and topographic Rossby ...
Knessl, Charles, Keller, Joseph B.
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Physical Review E, 2000
The possibility of tidal dynamics at strictly imaginary Lamb parameters has been known for more than three decades. The present paper explores the prevailing physics in this parameter regime. To this end, basic features of the global circulation such as baroclinicity and geostrophy have to be incorporated into tidal dynamics. The tidal equations of the
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The possibility of tidal dynamics at strictly imaginary Lamb parameters has been known for more than three decades. The present paper explores the prevailing physics in this parameter regime. To this end, basic features of the global circulation such as baroclinicity and geostrophy have to be incorporated into tidal dynamics. The tidal equations of the
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Rossby waves: synergy in action
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2002Rossby waves are an important phenomenon, linking processes in the west of ocean basins with forcing that occurred earlier in the east. We show evidence for such features in satellite-derived datasets of sea-surface height, temperature and ocean colour, using a section of the south Indian Ocean as an example.
Quartly, Graham D. +3 more
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Rossby waves with the change of β
Applied Mathematics and Mechanics, 1992The variation of the Rossby parameter \(\beta\) with latitude is considered, and the parameter \(\gamma=-{d\beta\over dy}\) is introduced. It is seen that the effect of \(\gamma\) is remarkable in the high latitude regions.
Liu, Shikuo, Tan, Benkui
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Overreflection of Rossby Waves
Journal of the Atmospheric Sciences, 1983Abstract The reflection of the Rossby wave by the shear zone of the basic flow with hyperbolic tangent profile is investigated by examining the eigenfunction of the disturbance equation. The reflection coefficient is evaluated for various values of wavenumbers and Coriolis parameter. The overreflection is found in some narrow range of the wavenumber.
Michio Yamada, Kanefusa Gotoh
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Diabatic Rossby waves in the Southern Hemisphere
Quarterly Journal of the Royal Meteorological Society, 2015Diabatic Rossby waves (DRWs) are a special type of low‐level cyclone with a self‐maintaining mechanism given an environment of moderate or strong baroclinicity and abundant moisture. Under certain conditions, these shallow cyclones associated with a cyclonic low‐level PV anomaly can serve as precursors for explosive cyclone intensification. The present
Boettcher, Maxi, Wernli, Heini
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Geophysical & Astrophysical Fluid Dynamics, 1994
Abstract An analytical spectral model of the barotropic divergent equations on a sphere is developed using the potential-stream function formulation and the normal modes as basic functions. Explicit expressions of the coefficients of nonlinear interaction are obtained in the asymptotic case of a slowly rotating sphere, i.e. when the normal modes can be
Jacques Vanneste, Francois Vial
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Abstract An analytical spectral model of the barotropic divergent equations on a sphere is developed using the potential-stream function formulation and the normal modes as basic functions. Explicit expressions of the coefficients of nonlinear interaction are obtained in the asymptotic case of a slowly rotating sphere, i.e. when the normal modes can be
Jacques Vanneste, Francois Vial
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