Coriolis Frequency -- from Eric Weisstein's World of Physics

Balancing centripetal force with the Coriolis force on a body at a radial distance r from the center of a frame of reference rotating with angular velocity , where the body is travelling with a radial velocity v gives

Plugging in and solving for then results in

Coriolis Acceleration, Coriolis Force, Coriolis Parameter, Stratification Parameter