  Until now it was not a success to identify a universal triggering mechanism
for the formation of the observed cyclon-anticyclon vortex asymmetry phenomenon
or the corresponding breaking of chiral vortex symmetry in the rotating medium.
In this paper the new linear universal instability mechanism of breaking chiral
vortex symmetry due to the super threshold medium rotation frequence in the
presence of linear Eckman friction is established. A new non stationary
solution to the problem of the disc oscillations in fluid in the connection
with experiments on the rotating superfluid helium-II has been found.

Fluid Dynamics