The Antarctic Polar Vortex

We study the flow near the Antarctic polar vortex via dynamical systems methods.  The meandering jet configuration of the flow suggests that a chaotic advection mechanism may be at work.  However, the finite-time nature of the system and the flow complexity make it difficult to apply the previously developed theory directly.  We appeal to recent results on finite-time flows of  Miller  et al., Rogerson et al., and Haller  and  Poje  to study this flow.  The motivation for this work,  as well as a technique to approach the difficulties posed by the problem, is due to  Bowman.