Articles | Volume 8, issue 4/5
Nonlin. Processes Geophys., 8, 301–311, 2001
https://doi.org/10.5194/npg-8-301-2001
Nonlin. Processes Geophys., 8, 301–311, 2001
https://doi.org/10.5194/npg-8-301-2001

  31 Oct 2001

31 Oct 2001

Cyclostrophic vortices in polar regions of rotating planets

V. Goncharov1 and V. Pavlov2 V. Goncharov and V. Pavlov
  • 1Institute of Atmospheric Physics, Russian Academy of Sciences, 109017 Moscow, Russia
  • 2UFR de Mathématiques Pures et Appliquées, Université de Lille 1, 59655 Villeneuve d’Ascq, France

Abstract. 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.