منابع مشابه
Nonlinear Wave Packets of Equatorial Kelvin Waves
The weakly nonlinear dynamics of packets of equatorial Kelvin waves is studied using singular perturbation theory applied to the shallow water wave equations. Within the limits of the perturbation theory, which is formally restricted to weak mean shear and weak nonlinearity, we derive a Nonlinear Schroedinger equation to describe the envelope of the wave packet. We find that nonlinearity has a ...
متن کاملWeak turbulence of short equatorial waves
We derive a normal form of nonlinear equations for short equatorial waves considered in the framework of the rotating shallow water model. We show dynamical splitting of equatorial Rossby and inertia-gravity waves. We derive an effective Hamiltonian for the short inertia-gravity waves and consider their kinetics using the weak turbulence approach. Stationary power-law energy spectra are obtaine...
متن کاملA simulation study of RX-mode waves generation in the equatorial plasmasphere
The generation mechanism of RX-mode waves in the equatorial plasmasphere has not been well understood. The Akebono passing through the storm time geomagnetic equator shows the possibility of the local enhancement of RX-mode waves in association with intense Z-mode waves in the equatorial region. We use the initial parameters inferred from observational data from around the plasma-wave generatio...
متن کاملBalance model for equatorial long waves
J. Fluid Mech., (2013), vol. 725, pp. 55–90. c © Cambridge University Press 2013. The online version of this article is published within an Open Access environment subject to the conditions of the Creative Commons Attribution-NonCommercial-ShareAlike licence . The written permission of Cambridge University Press must be obtained for commercial ...
متن کاملOn the Dynamics of Internal Waves Interacting with the Equatorial Undercurrent
The interaction of the nonlinear internal waves with a nonuniform current with a specific form, characteristic for the equatorial undercurrent, is studied. The current has no vorticity in the layer, where the internal wave motion takes place. We show that the nonzero vorticity that might be occuring in other layers of the current does not affect the wave motion. The equations of motion are form...
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ژورنال
عنوان ژورنال: Journal of the Atmospheric Sciences
سال: 2004
ISSN: 1520-0469,0022-4928
DOI: 10.1175/jas3352.1