Virginia Search and Rescue Dog Association

Eddying: When flowing air moves along/over a large linear obstacle, like a treeline, and the air curls around the edges and swirls.

">Eddying : When flowing air moves along/over a large linear obstacle, like a treeline, and the air curls around the edges and swirls.

Chimney
Chimney Effect: Warm air rises from the source, cools, then drops a distance away from the source.
Change of Behavior
Change of Behavior (COB): A characteristic pattern of behaviors, as interpreted by the handler, that occurs when the dog detects a trained odor.