Cold Advection

Cold Advection cold air moves into a warmer region
Cold advection is the process in which the wind blows from a region of cold air to a region of warmer air. The following animation depicts a very simple example of cold advection.

Cold Advection - Transport of cold air into a region by horizontal winds. This transport often acts as a forcing mechanism, particular in the winter, and upward vertical motion may ensue.

COLD ADVECTION The horizontal movement of colder air into a location. Contrast with warm advection.

Cold Advection (CAA)Transport of cold air into a region by horizontal winds.Cold frontA narrow transition zone separating advancing colder air from retreating warmer air.

Contrast with cold advection. WARM FRONT The leading edge of an advancing warm air mass that is replacing a retreating relatively colder air mass.

Transport of an atmospheric property, e.g. heat or moisture, by the wind. See cold advection, moisture advection, and warm advection.
Advection fog ...

Advection - Transport of an atmospheric property by the wind. See cold advection, moisture advection, warm advection.

Cold Air Advection
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Advection fog, Cold Advection, Moisture Convergence, Sea Fog, WAA, Warm Advection
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Similarly, warm advection (or WA for short) also results in a negative ω corresponding to ascending motion. Negative vorticity advection (NVA) or cold advection (CA) both result in a positive ω corresponding to descending motion.

See also: Advection, Air, Temperature, Wind, Pressure