What Is Cold Air Advection?
Wind carrying colder air into an area, making it cooler. It usually follows a cold front. In technical terms: Horizontal transport of lower temperatures by the wind (negative temperature advection, -V dot grad T); winds blowing across isotherms from cold toward warm indicate CAA, which is associated with winds backing with height and synoptic-scale sinking motion.
Also called: Cold Advection, CAA
Cold Air Advection In Plain English
Wind carrying colder air into an area, making it cooler. It usually follows a cold front.
The Technical Definition
Horizontal transport of lower temperatures by the wind (negative temperature advection, -V dot grad T); winds blowing across isotherms from cold toward warm indicate CAA, which is associated with winds backing with height and synoptic-scale sinking motion.
