fs.fed.us

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Definitions (238)

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defensible space


An area either natural or manmade where material capable of causing a fire to spread has been treated, cleared, reduced, or changed to act as a barrier between an advancing wildland fire and the loss to life, property, or resources. In practice, "defensible space" is defined as an area a minimum of 30 feet around a structure that [..]
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extended attack incident


A wildland fire that has not been contained or controlled by initial attack forces and for which more firefighting resources are arriving, en route, or being ordered by the initial attack incident commander.
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reburn


The burning of an area that has been previously burned but that contains flammable fuel that ignites when burning conditions are more favorable; an area that has reburned.
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single resource


An individual, a piece of equipment and its personnel complement, or a crew or team of individuals with an identified work supervisor that can be used on an incident.
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spotting


Behavior of a fire producing sparks or embers that are carried by the wind and start new fires beyond the zone of direct ignition by the main fire.
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aerial fuels


All live and dead vegetation in the forest canopy or above surface fuels, including tree branches, twigs and cones, snags, moss, and high brush.
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aerial ignition


Ignition of fuels by dropping incendiary devices or materials from aircraft.
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air tanker


A fixed-wing aircraft equipped to drop fire retardants or suppressants.
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agency


Any federal, state, or county government organization participating with jurisdictional responsibilities.
Source: fs.fed.us

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anchor point


An advantageous location, usually a barrier to fire spread, from which to start building a fire line. An anchor point is used to reduce the chance of firefighters being flanked by fire.
Source: fs.fed.us


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