A system of organizing workers in fire suppression in which each crew member is assigned a specific task such as clearing or digging fireline on a specific section of control line, and when that task is completed, passes other workers in moving to a new assignment. 

The process of developing and interpreting goals and objectives necessary to guide wildland fire management actions.

The temperature reading measured from a fuel stick fully exposed to sunlight, above a representative fuel bed, using one of two methods (within a 3/4-inch or across a 1/2-inch pine dowel).

The modeled condition of herbaceous vegetation (pre-green, green-up, transition, cured, frozen) for the 1978 version of NFDRS.

An NDVI-derived image of vegetation greenness compared to its average greenness for the current week of the year.

The central point or area of a weather system associated with increased winds, clouds or precipitation (or any combination thereof).

Direct attack around a fire in opposite directions by two or more attack units. Usually conducted from the fire's tail to head.

Aircraft orbiting the rendezvous area; usually refers to vertical deployment at 500-foot (150 m) altitudinal separation between aircraft.

A frame on which hose is wound, now chiefly used for "booster" or small hose (3/4- or l-inch hose) (19 or 25 mm) supplied by a water tank on the apparatus; also, a hand-drawn 2-wheel frame for 2-1/2 inch (64 mm) hose used in industrial plants.

Term used in flight planning/following to document time of arrival at a point.