An instrument that provides an approximate measure of evapotranspiration by measuring the water loss from an artificial evaporating surface.

Training device that imposes simulated fire and smoke on a landscape image, for the purpose of instructing fire suppression personnel in different fire situations and fire suppression techniques.

The total heat energy released during combustion, usually published as units of heat energy produced per unit mass of ovendry fuel consumed.

A product, tool, or IT application that has been designated as the trusted source for wildland fire data. This source may also create and update transactional data for use in other applications. There may be more than one IADS and it can change depending on business process complexity and life cycle. An IADS may be a compilation or subset of data from other authoritative sources. The DLM process ensures sources, limitations, currency, and attributes for the IADS are documented.

A formal working agreement among agencies to obtain mutual aid.

A colored flare designed as a railway warning device, widely used to ignite backfires and other prescribed fires.

Track of an aircraft over the earth's surface.

Atmospheric conditions under which pollutants build up faster than the atmosphere can disperse them.

An injury or illness/disease caused by a person or object under circumstances that indicate there may be a legal liability on a party other than the federal or state government.

The compass direction in which the longitudinal axis of the aircraft points.