The heating of the earth's surface by both atmospheric infrared radiation and incoming solar radiation.

A coat with a fire resistant outer shell and a thermal and moisture barrier liner. Used primarily by structure firefighters.

A burn where the outer layer of skin is burned through and the second layer of skin (dermis) is damaged and is typically, a painful injury. Burns of this type cause reddening, blistering, and a mottled appearance.

A burn involving all the layer of the skin. Muscle layers below the skin and bones may also be damaged. Areas of the skin may be charred black or areas that are dry and white.

A minor thermal burn involving the outer layer of skin, i.e. "a sunburn". It is characterized by reddening of the skin and perhaps some swelling without blisters.

Small branches, needles, and leaves swept into a position by the wind and fixed by desiccation indicating the wind direction at the time of fire passage. One of the 11 NWCG categories of fire pattern indicators.

A fire that has gained headway and built up heat in a structure so as to require greater cooling for extinguishment.

Specialized trailer on which is mounted a tank, fire pump, hose, and ancillary equipment.

Airtanker drop in which tank doors are opened in sequence so that fire retardant cascades somewhat continuously.

A branch within the logistics section responsible for service activities at the incident. Includes the communications, medical and food units.