Now showing items 1-3 of 3

  • The critical merger distance between two co-rotating quasi-geostrophic vortices 

    Reinaud, Jean Noel; Dritschel, David Gerard (2005-01-10) - Journal article
    This paper examines the critical merger or strong interaction distance between two equal-potential-vorticity quasi-geostrophic vortices. The interaction between the two vortices depends on five parameters: their volume ...
  • The quasi-geostrophic ellipsoidal vortex model 

    Dritschel, David Gerard; Reinaud, Jean Noel; McKiver, William J (2004-04-25) - Journal article
    We present a simple approximate model for studying general aspects of vortex interactions in a rotating stably-stratified fluid. The model idealizes vortices by ellipsoidal volumes of uniform potential vorticity, a materially ...
  • The shape of vortices in quasi-geostrophic turbulence 

    Reinaud, Jean Noel; Dritschel, David Gerard; Koudella, CR (2003-01-10) - Journal article
    The present work discusses the most commonly occurring shape of the coherent vortical structures in rapidly rotating stably stratified turbulence, under the quasi-geostrophic approximation. In decaying turbulence, these ...