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FRONT FEU [11 records]

Record 1 2024-05-14

English

Subject field(s)
  • System Names
  • Brush, Prairie and Forest Fires
  • Emergency Management
OBS

The Canadian Forest Fire Weather Index (FWI) System consists of six components that account for the effects of fuel moisture and weather conditions on fire behavior. The first three components are fuel moisture codes, which are numeric ratings of the moisture content of the forest floor and other dead organic matter. Their values rise as the moisture content decreases. There is one fuel moisture code for each of three layers of fuel: litter and other fine fuels; loosely compacted organic layers of moderate depth; and deep, compact organic layers. The remaining three components are fire behavior indices, which represent the rate of fire spread, the fuel available for combustion, and the frontal fire intensity; these three values rise as the fire danger increases.

French

Domaine(s)
  • Noms de systèmes
  • Incendies de végétation
  • Gestion des urgences
OBS

La Méthode canadienne de l'indice forêt météo(IFM) est formée de six composantes qui tiennent compte des effets de la teneur en eau des combustibles et des conditions météorologiques sur le comportement du feu. Les trois premières composantes sont des indices d’humidité des combustibles; ce sont des valeurs numériques de la teneur en eau de la litière et d’autres matières organiques mortes. Leur valeur augmente à mesure que la teneur en eau diminue. Il existe un indice d’humidité des combustibles pour chacune des trois couches de combustibles : litière et autres combustibles légers, couches organiques peu tassées de moyenne épaisseur, et épaisses couches organiques compactes. Les trois autres composantes sont des indices de comportement du feu qui représentent la vitesse de propagation du feu, les quantités de combustibles disponibles et l'intensité du feu sur le front de l'incendie; la valeur de ces trois indices est directement proportionnelle au danger d’incendie.

Spanish

Save record 1

Record 2 2024-05-07

English

Subject field(s)
  • Brush, Prairie and Forest Fires
  • Fires and Explosions
DEF

A fire that advances rapidly in a given direction with a well-defined head.

CONT

Given that there are thousands of kilometers of the convoluted urban interface areas, much of which is private property, it is not feasible to install and maintain a system of 100-500 [meter] fuel reduced buffers to a standard that they will stop a running fire.

French

Domaine(s)
  • Incendies de végétation
  • Feux et explosions
DEF

Feu qui se propage rapidement avec un front bien défini.

Spanish

Save record 2

Record 3 2018-08-08

English

Subject field(s)
  • Brush, Prairie and Forest Fires
  • Ecosystems
DEF

Any non-structure fire that occurs in vegetation or natural fuels.

French

Domaine(s)
  • Incendies de végétation
  • Écosystèmes
CONT

De manière très schématique un feu de végétation peut être assimilé à un front de flamme en propagation à travers un couvert végétal.

Spanish

Campo(s) temático(s)
  • Incendio de la vegetación
  • Ecosistemas
Save record 3

Record 4 2005-05-11

English

Subject field(s)
  • Brush, Prairie and Forest Fires
DEF

The width of the zone within which continuous flaming occurs behind the edge of a fire front.

French

Domaine(s)
  • Incendies de végétation
DEF

Largeur de la zone de flammes continues qui se trouve derrière le front d’un feu.

Spanish

Save record 4

Record 5 2005-05-11

English

Subject field(s)
  • Brush, Prairie and Forest Fires
DEF

The length of flames measured along their axis at the fire front ...

OBS

Flame length is an approximate indicator of frontal fire intensity.

French

Domaine(s)
  • Incendies de végétation
DEF

Longueur des flammes mesurée le long de leur axe du front de feu.

Spanish

Save record 5

Record 6 2005-05-11

English

Subject field(s)
  • Fires and Explosions
  • Brush, Prairie and Forest Fires
DEF

The angle formed between the flame at the fire front and the ground surface, expressed in degrees.

French

Domaine(s)
  • Feux et explosions
  • Incendies de végétation
DEF

Angle entre les flammes du front d’un feu et la surface du sol, exprimé en degrés.

Spanish

Save record 6

Record 7 2005-05-11

English

Subject field(s)
  • Brush, Prairie and Forest Fires
DEF

The average maximum vertical extension of flames at the fire front; occasional flashes that rise above the general level of flames are not considered.

OBS

Recommended SI unit is metres (m).

French

Domaine(s)
  • Incendies de végétation
DEF

Moyenne de l'extension verticale maximale des flammes au front d’un feu, qui ne tient pas compte des flambées occasionnelles au-dessus du niveau général.

Spanish

Save record 7

Record 8 2005-05-10

English

Subject field(s)
  • Properties of Fuels
  • Brush, Prairie and Forest Fires
DEF

A fuel too large to be ignited until after the leading edge of the fire front passes, but small enough to be completely consumed.

Key term(s)
  • medium fuels
  • intermediate fuels

French

Domaine(s)
  • Propriétés des combustibles
  • Incendies de végétation
DEF

Combustible généralement trop gros pour s’enflammer avant que le front d’un feu ne soit passé, mais assez petit pour être complètement consumé.

Spanish

Save record 8

Record 9 2005-05-10

English

Subject field(s)
  • Thermodynamics
  • Brush, Prairie and Forest Fires
DEF

The rate of heat energy release per unit time per unit length of fire front.

OBS

Flame size is its main visual manifestation. Fire intensity is a major determinant of certain fire effects and difficulty of control.

French

Domaine(s)
  • Thermodynamique
  • Incendies de végétation
DEF

Quantité de chaleur ou d’énergie dégagée par le feu par unité de longueur d’un front de flammes.

OBS

L’intensité est habituellement en kilowatt/heure.

Spanish

Save record 9

Record 10 2005-05-03

English

Subject field(s)
  • Brush, Prairie and Forest Fires
DEF

The length of time required for the flaming zone or fire front of a spreading forest fire to pass a given point, most commonly expressed in minutes (min) and/or seconds (s).

OBS

Numerically, [residence time] is equal to the flame depth divided by the rate of spread.

French

Domaine(s)
  • Incendies de végétation
DEF

Temps que prend la zone enflammée ou le front d’un feu en expansion pour franchir la distance jusqu'à un point donné.

Spanish

Save record 10

Record 11 1992-03-10

English

Subject field(s)
  • Silviculture
  • Brush, Prairie and Forest Fires

French

Domaine(s)
  • Sylviculture
  • Incendies de végétation

Spanish

Save record 11

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