THE BEHAVIOR OF ISOLATED CYCLONIC AND ANTICYCLONIC VORTICES AND THEIR INTERACTION IN HOMOGENEOUS FIELDS WITH AND WITHOUT THE BETA EFFECT

A. E. Pokhil, I. G. Sitnikov, and V. A. Zlenko

A modified equivalent-barotropic model is constructed for studying the interaction of atmospheric vortices with each other and with various weather systems. The initial state of the atmosphere is a low-parametric velocity field of a certain structure. The behavior of isolated vortices (cyclones and anticyclones) is compared on the beta plane. Conditions are determined under which vortices of opposite sign behave in a similar way and when this is not the case. Interaction of a pair of like-signed and oppositely-signed vortices in a homogeneous field is analyzed. Conditions are found when one of the vortices rotates around the other, when one vortex is destroyed by the other, and when they are in equilibrium state.

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