Abstract
The exterior flow of a Kida ellipse that has a large chaotic zone is studied. The spatial variability that is characterized by the separation rate of nearby particles in the chaotic region is determined. In order to quantify this variability, a method for calculating the finite time spreading rate is developed. By examining the individual particle trajectories, it is seen that particles that have a high spreading rate are particles that pass near a stagnation point of the flow. The effect of the addition of vorticity to particles in the exterior flow is examined.
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