Barotropic vortex pairs on a rotating sphere

  title={Barotropic vortex pairs on a rotating sphere},
  • R K T D I B A T T I S T A A N D L O R E N Z, O M P O L V A N I
Using a barotropic model in spherical geometry, we construct new solutions for steadily travelling vortex pairs and study their stability properties. We consider pairs composed of both point and finite-area vortices, and we represent the rotating background with a set of zonal strips of uniform vorticity. After constructing the solution for a single point-vortex pair, we embed it in a rotating background, and determine the equilibrium configurations that travel at constant speed without… CONTINUE READING