absolute vorticity—See vorticity.
adiabatic process—The process by which fixed relationships are maintained during changes in temperature, volume, and pressure in a body of air without heat being added or removed from the body.
With respect to atmospheric motions, refers to an absolute coordinate system; for example, absolute vorticity as distinguished from relative vorticity. 2.
CAVT"Abbreviation for constant absolute vorticity trajectory.
CAVU"[Abbreviation for ceiling and visibility unlimited (and unrestricted).
Absolute vorticity is the combined vorticity due to the earth's rotation and the vorticity due to the air's circulation relative to the earth. Relative vorticity is due to the curving of the air flow and wind shear.
 See also: Radiation, Temperature, Air, Circulation, Surface
  
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