Geodesic
Analysis of Stationary Points and Bifurcations
Russian journal of nonlinear dynamics, Tome 19 (2023) no. 1, pp. 49-58

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A dynamically consistent model of a meandering jet stream with two Rossby waves obtained using the law of conservation of potential vorticity is investigated. Stationary points are found in the phase space of advection equations and the type of their stability is determined analyti- cally. All topologically different flow regimes and their bifurcations are found for the stationary model (taking into account only the first Rossby wave). The results can be used in the study of Lagrangian transport, mixing, and chaotic advection in problems of cross-frontal transport in geophysical flows with meandering jets.
Keywords: stationary points, jet flow.
Mots-clés : separatrices reconnection 
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A. A. Udalov; M. Yu. Uleysky; M. V. Budyansky. Analysis of Stationary Points and Bifurcations. Russian journal of nonlinear dynamics, Tome 19 (2023) no. 1, pp. 49-58. http://geodesic.mathdoc.fr/item/ND_2023_19_1_a3/