A fire that burns into the crowns of the vegetation, often dependent on intense understory fire.
A fire that advances through the tops of trees or shrubs. Drip Torch A small fuel tank with a handle, nozzle and igniter, used to drip a burning mixture of diesel fuel and gasoline on wildland fires in order to start a back fire (q.v.). Also known as a backfire pot.
A fire that burns in the crowns, or tops, of trees, usually hot and destructive.
Extremely hot forest fire that burns ground vegetation and treetops. Compare controlled burning, ground fire, surface fire.
A fire that burns primarily in the leaves and needles of trees, spreading from tree to tree above the ground.
a forest fire that advances with great speed jumping from crown to crown ahead of the ground fire
a fire that burns in the tops of trees and is usually extremely hot and destructive
a fire that spreads through the treetops, or crown, of a forest.
A fire burning hot enough to continuously spread through the tops of trees.
A fire burning into and through the crowns of a forest or shrubland.
(Crowning)—The movement of wildfire through the tops of trees essentially independent of fuels on the ground.
Fire Control] A fire that advances through the tops of trees or shrubs.
same as a canopy fire. A fire in the upper forest canopy.
Any fire that advances from top to top of trees or brush that is more or less independent of the surface fire.
A fire that advances from top to top of trees or shrubs more or less independent of a surface fire. Crown fires are sometimes classed as running.
a fire that has ascended from the ground into the tops of trees and can advance more or less independently of the ground.
The movement of fire through the crowns of trees or shrubs more or less independently of the surface fire.
This is a fire that travels from one crown (or tree top) to another in dense stands of trees, killing most trees in its path. However, even in intense crown fires, unburned strips may be left due to powerful, downward air currents. A passive (or dependent) crown fire relies upon heat transfer from a surface fire burning below crowns. An active (or independent) crown fire does not require transfer of heat from below the crowns (See Surface fire).
Fire that has ascended from the ground into the forest canopy.
A fire that advances through the crown fuel layer, the upper part of the tree bearing live branches and foliage.
Uncontrolled wildfire spreading from tree crown to tree crown. This is different from single trees burning.
A wildfire of sufficient intensity as to have climbed from the ground to the tree tops and which then spreads at the treetop level. Not uncommon in the northern forests before the days of fire supression, especially in stands of Black Spruce ( Picea mariana).
A fire that advances from top to top of trees or shrubs more or less independently of the surface fire. Sometimes crown fires are classed as either running or dependent, to distinguish the degree of independence from the surface fire.
a fire that burns in the canopies of trees.