A measure of the average rate of the horizontal transport of air within the Mixing Layer. May also be the wind speed at the final height of plume rise. Generally refers to the rate at which emissions will be transported from one area to another.

That portion of the atmosphere from the surface up to the mixing height. This is the layer of air, usually below a stable layer, within which pollutants are mixed by turbulence and diffusion.

A numerical value relating the potential of the atmosphere to disperse airborne pollutants from a stationary source, calculated by multiplying the mixing height by the transport wind speed.

A detailed prescription for treating a specified burning block with fire.

The chance of fire starting, as determined by the presence and activity of causative agents.

Large, portable tank from which helitankers can hoverfill.

The ability to account for the location and welfare of personnel, accomplished when supervisors ensure that the ICS principles and processes are functional and personnel are working within these guidelines.

Line or set of lines made of rope, webbing, or cable and used in helicopter external load operations; usually placed between a swivel or the cargo hook and the load.

Any wildfire on which suppression action has not reached an extensive mop up stage.

Chemical decomposition by burning material in which the reaction is less than sonic velocity, for example, low explosives.