ESS227
Prof. Jin-Yi Yu
Vorticity
Induces Velocity
• This perturbation
vorticity field will induce a meridional velocity field,
which advects the chain of fluid parcels southward
west of the vorticity maximum and
northward
west of the vorticity minimum.
• Thus, the fluid parcels oscillate back
and forth about their equilibrium latitude, and the pattern
of vorticity maxima and minima propagates to the
west.