Fire in Forests. Glossary of Terms
Filter list
Terminology concepts
active crown fireNo contributors
ConceptDraft
crown fire that advances simultaneously throughout the forest both in the canopy layer and in the lower layers
peat stockpile fireNo contributors
ConceptDraft
peat production site fire that ignites within a peat stockpile or on its surface and causes a slow-spreading smoldering fire
initial attackNo contributors
ConceptDraft
fire control attempt by the first rescue units or aircraft arriving at a wildfire incident to suppress the fire
fire swatterNo contributors
ConceptDraft
hand tool used for wildfire suppression and control of prescribed burning
independent crown fireNo contributors
ConceptDraft
crown fire that advances in the tree crowns independently, not requiring any thermal energy from the lower fuel layers to spread
slash-and-burn forestNo contributors
ConceptDraft
forest that has emerged on a site formerly managed by slash-and-burn agriculture practices
peat field fireNo contributors
ConceptDraft
peat production site fire that ignites in the surface layer of the site where peat burns in a few millimeter layer and forms small smoldering spots on the surface
cured grassNo contributors
ConceptDraft
dead fuel consisting of dried out grass or grass-like plants of previous growing seasons
kulohälytysNo contributors
ConceptDraft
warning that was in use in Finland earlier and that may have been issued when forest fire risk was impending
fire refugiaNo contributors
ConceptDraft
area which, due to vegetation, soil moisture conditions or some other factors, has repeatedly remained unburned in its forest fire history, or an area which remains unburned in a major forest fire
prescribed burn managerNo contributors
ConceptDraft
person in charge of prescribed burning operations and making decisions about ignition and other actions
prescribed burning organizationNo contributors
ConceptDraft
organization responsible for conducting a prescribed burning and compensating for possible damage resulting therefrom, or the insurance of which covers possible damages
safety plan for prescribed burningNo contributors
ConceptDraft
document which anticipates the factors that affect the prescribed burning and preparing for them
notice of prescribed burningNo contributors
ConceptDraft
notice of conducting prescribed burning made by a prescribed burning organization to the rescue department
kulovaroitusNo contributors
ConceptDraft
warning that was in use in Finland earlier and that was issued when forest fire danger was obvious
smoldering fireNo contributors
ConceptDraft
ground fire or a peat fire burning slowly at relatively low temperatures, without visible flame, and mainly glowing
flame heightNo contributors
ConceptDraft
distance of the tip of the forest fire flame from the ground, measured vertically
flame lengthNo contributors
ConceptDraft
distance between the flame tip of the forest fire tip and the midpoint of the flame depth at the base of the flame
forest fuel flammabilityNo contributors
ConceptDraft
sensitivity of forest fuel to ignite under certain circumstances
forest fuelNo contributors
ConceptDraft
organic substances that are found in a forest above, on, and below soil surface and that may ignite
forest fire insuranceNo contributors
ConceptDraft
insurance covering the damages caused to tree stands, seedlings, and timber stored in the forest by a forest fire and fire suppression activities
fuel moisture contentNo contributors
ConceptDraft
water content of a fuel in relation to the total mass of the fuel
fuel bedNo contributors
ConceptDraft
structural element of fuel loading which can consist of different forest fuels located at a certain height above the ground
fuel typeNo contributors
ConceptDraft
index classifying fuels in terms of their composition, volume, and structure
fire ecologyNo contributors
ConceptDraft
branch of forest ecology that studies the interactions between forest fires, environment, and living organisms
extinguishing water wellNo contributors
ConceptDraft
well that is used to take extinguishing water in fire protection
live fuel typeNo contributors
ConceptDraft
index classifying live fuels in terms of their composition, volume, and structure
fire triangleNo contributors
ConceptDraft
a model in which burning requires heat, oxygen, and fuel at the same time
fire behavior triangleNo contributors
ConceptDraft
diagram illustrating a wildfire with the help of three main factors: fuel, topography, and weather conditions
fire-dependent speciesNo contributors
ConceptDraft
species dependent on the burnt forest area habitats
fire weatherNo contributors
ConceptDraft
weather conditions affecting the ignition and spread of wildfires