planetary vorticity effect

planetary vorticity effect

[′plan·ə‚ter·ē vȯr′tis·əd·ē i‚fekt]
(geophysics)
The effect of the variation of the earth's vorticity with latitude in altering the relative vorticity of a flow with a meridional component; a fluid with a free surface in a rotating cylinder exhibits a corresponding effect, owing to the shrinking or stretching of radially displaced columns.