Vorticity equation
The vorticity equation is an important prognostic equation in the atmospheric sciences. It describes the total derivative (that is, the local change due to local change with time and advection) of vorticity, and thus can be stated in either relative or absolute form.
The more compact version is that for absolute vorticity,  , using the pressure system:
Here,  is density, u, v, and  are the components of wind velocity, and  is the 2-dimensional (i.e. horizontal-component-only) del.
The terms on the RHS denote the positive or negative generation of absolute vorticity by divergence of air, twisting of the axis of rotation, and baroclinity, respectively.
See also
Referenced By
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