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Showing 1 to 20 of 72 for “"Rossby Waves"”.
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Alfven-Rossby Waves in Rotating Magnetized Stars
… nonlinear interactions between linear Alfven-Rossby waves. We used a spherical harmonic representation in which the fully nonlinear MHD equations are replaced by an equivalent system of first order ODEs. We computed the coupling coefficients analytically. Through numerical calculations, we …
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Non-linear saturation of vertically propagating Rossby waves
… exponential amplitude increase with height for Rossby waves propagating vertically through a stratified atmosphere, as a result of wave activity density conservation. At the same time layer-wise conservation of potential enstrophy constrains wave amplitudes, given the limited amount of potential …
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On the propagation of free topographic Rossby waves near continental margins
… others has demonstrated that free topographic Rossby waves propagate northward up the continental rise south of New England. To study the dynamical implications of these waves as they approach the shelf, Beardsley, Vermersch, and Brown conducted an experiment in 1976 (called NESS76) in which …
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On the propagation of free topographic Rossby waves near continental margins
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1979.
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Magnetohydrodynamics of the Earth's core : 1) steady, rotating magnetoconvection 2) magnetic Rossby waves
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1992.
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Linear and nonlinear Rossby waves in basins both with and without a thin meridional barrier
The linear and nonlinear Rossby wave solutions are examined in homogeneous square basins on the ß-plane both with and without a thin meridional barrier In the presence of the meridional barrier the basin is almost partitioned into two; only two small gaps of equal width, d, to the north and south …
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Linear and nonlinear Rossby waves in basins both with and without a thin meridional barrier
The linear and nonlinear Rossby wave solutions are examined in homogeneous square basins on the [beta]-plane both with and without a thin meridional barrier. In the presence of the meridional barrier the basin is almost partitioned into two; only two small gaps of equal width, d, to the north and …
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Characteristics of potential vorticity mixing by breaking Rossby waves in the vicinity of a jet
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1995.
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Rossby waves and two-dimensional turbulence in the presence of a large-scale zonal jet
… numerical, and observational study of barotropic waves and turbulence in an inhomogeneous background flow environment. The theoretical aspects of the work are simplified by restricting attention to the two-dimensional doublyperiodic beta-plane, and in nearly every respect to large-scale zonal …
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On the pathways of the return flow of the meridional overturning circulation in the tropical Atlantic
… are created as the result of the reflection of Rossby waves at the South American coast. These Rossby waves are generated by the barotropically unstable North Equatorial Countercurrent. The deep structure of the rings can be explained by merger of the wave's anticyclones with the deeper …
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Seasonal oscillations in a mid-latitude ocean with barriers to deep flow
… of the motion is low enough so that free short Rossby waves are essentially nondivergent. In this case there is little coupling between the layers for energy propagating to the east away from the barrier. A study of the dynamics of flow over a sloping bottom is made and the results are used to …
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The Study of the Indian Ocean Response to Climatic Events Using Satellite Observations and Model Simulations
… to understand the interaction of Kelvin and Rossby waves with the MJO. It appears that propagations of the MJO force equatorial Kelvin waves in the Indian Ocean as shown by a lag between Outgoing Longwave Radiation (OLR) and SSH in wavelet analysis. Equatorial Rossby waves also interact with …
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On the pathways of the return flow of the meridional overturning circulation in the tropical Atlantic
… are created as the result of the reflection of Rossby waves at the South American coast. These Rossby waves are generated by the barotropically unstable North Equatorial Countercurrent. The deep structure of the rings can be explained by merger of the wave's anticyclones with the deeper …
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Studies of wave-mean interaction relevant to the middle atmospheric circulation
… can be described in terms of the dynamics of Rossby-Ertel potential vorticity (PV). In the second part (Chapters 4 and 5), Rossby waves and their mean effects in the middle atmosphere are investigated within the framework of quasi-geostrophic theory. Chapter 2 describes a simple thought …
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Enhanced vertical mixing within mesoscale eddies due to high frequency winds in the south China sea
… higher (daily and six-hourly cases), then Vortex Rossby waves and near inertial waves are excited as ageostrophic expression of the vigorous eddy field. Those waves dominate the vertical velocity field in the mixed layer (vortex Rossby waves) and below the first hundred meters (near inertial …
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Air-sea interaction at contrasting sites in the eastern tropical Pacific : mesoscale variability and atmospheric convection at 10°N
… relation for first baroclinic mode, free Rossby waves in the presence of a mean westward flow. The hypothesis that the intraseasonal variability and its annual cycle are associated with baroclinic instability of the North Equatorial Current is supported by a spatio-temporal correlation …
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Description and Dynamics of 50-Day Oscillations in the Western Tropical Region of the CME Model
… were first and second mode baroclinic Rossby waves. Repetition of the vorticity analysis during the period of the retroflection revealed the NECC meanders also to be first and second mode baroclinic Rossby waves; the same as the 50-day oscillations. These findings, together with the …
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MECHANISMS FOR THE EXISTENCE OF DIAGONAL SOUTHERN HEMISPHERE CONVERGENCE ZONES
… the SPCZ diagonal orientation. Wind shear and Rossby wave refraction cause vorticity centres in the subtropical jet to develop a diagonal orientation and propagate equatorward towards the eastern Pacific upper-tropospheric westerlies. Ascent ahead of cyclonic vorticity anomalies in the wave …
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The evolution of upper ocean thermal structure at 10°N, 125°W during 1997-1998
… of the vertical shear by strong near-inertial waves in the upper ocean superimposed upon intra-seasonal baroclinic Rossby waves and the large scale zonal flow.
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The evolution of upper ocean thermal structure at 10⁰N, 125⁰W during 1997-1998
… of the vertical shear by strong near-inertial waves in the upper ocean superimposed upon intra-seasonal baroclinic Rossby waves and the large scale zonal flow.
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