The Rossby Number (Ro) is a dimensionless number consisting of
the ratio of internal to Coriolis Force.
It is used in modeling Atmosphere and ocean dynamics.
It is defined as:
Ro = U / Lf
- U - characteristic velocity scale
- L - characteristic length scale
- f = 2 Ω sin φ - the Coriolis Frequency where Ω is the angular frequency of rotation and φ is the latitude.
The Convective Rossby Number, of interest in the study
of convection in stars and planets and the resulting Dynamos,
is the ratio of a buoyancy force to the Coriolis force.
Rossby Radius of Deformation