Convective cells of internal gravity vortices in the Earth atmosphere with zonal wind

Category: 14-3
O.G. Onishchenko, O.A. Pokhotelov, N.M. Astafieva


УДК 550.348.098.45; 551.511



O.G. Onishchenko(1,2), O.A. Pokhotelov(1), N.M. Astafieva(2)


(1) Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia

(2) Space Research Institute RAS, Moscow, Russia



The effect of shear of zonal winds on the dynamics of nonlinear internal gravity waves in the Earth's atmosphere is studied. Closed system of nonlinear equations describing these waves is derived. A condition for the existence of solitary vortices in the atmosphere with shear zonal wind is obtained. It is shown that in the atmosphere with zonal shear wind the horizontal velocity of the vortices can be substantially smaller than the sound speed.

Keywords: internal gravity waves, zonal winds, vortices.



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