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Cyclostrophic vortices in polar regions of rotating planets

type de publication      article dans une revue internationale avec comité de lecture
date de publication 2001
auteur(s) Goncharov V.P.; Pavlov Vadim
journal Nonlinear Processes in Geophysics
volume (numéro) 8 (-5)
pages 301 – 311
résumé Multi-petal, rotating vortices can form in two-dimensional flows consisting of an inviscid incompressible fluid under certain conditions. Such vortices are principally nonlinear thermo-hydrodynamical structures. The proper rotation of these structures which leads to time-dependent variations of the associated temperature field can be enregistred by a stationary observer. The problem is analyzed in the framework of the contour dynamics method (CDM). An analytical solution of the reduced equation for a contour curvature is found. We give a classification of the solutions and compare the obtained results with observational data.
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