Twisting term

From Glossary of Meteorology



twisting term

(Also called tilting term, tipping term.) The term in the vorticity equation that represents the generation of vertical vorticity by the twisting of horizontal vorticity into the vertical through the agency of shear in the vertical velocity.

In symbols this term is
ams2001glos-Te50
where u, v, and w are the velocity components along the coordinate directions x, y, and z, respectively.