Virginia Search and Rescue Dog Association

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Term	Definition
Fanning Plumes: When air hodls at the same elevation, without rising or falling. Occurs at night, and in valleys. Visualize the air like a thermocline. ">Fanning Plumes : When air hodls at the same elevation, without rising or falling. Occurs at night, and in valleys. Visualize the air like a thermocline.
Fumigating: When scent from the source disperses evenly, and saturates the area. For example: a closed room. ">Fumigating : When scent from the source disperses evenly, and saturates the area. For example: a closed room.

Term

Definition

Fanning Plumes: When air hodls at the same elevation, without rising or falling. Occurs at night, and in valleys.

Visualize the air like a thermocline.

">Fanning Plumes : When air hodls at the same elevation, without rising or falling. Occurs at night, and in valleys.

Visualize the air like a thermocline.

Fumigating: When scent from the source disperses evenly, and saturates the area.

For example: a closed room.

">Fumigating : When scent from the source disperses evenly, and saturates the area.

For example: a closed room.

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.