Unit Objectives Identify key elements of the fire environment Fuels Weather Topography Fire behavior Preburn Reconnaissance Fuels Targeted participants ID: 705093
Download Presentation The PPT/PDF document "Unit 7 Fuels and Fire Behavior" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Unit 7
Fuels and Fire BehaviorSlide2
Unit Objectives
Identify key elements of the fire environment:
Fuels
Weather
Topography
Fire behaviorSlide3
Pre-burn Reconnaissance
Fuels
Targeted participants:
- Pilot
- Burn Boss/Firing Boss
A thorough recon of the burn area and a discussion of the burn objectives are essential to a successful firing
operation
Fire environment elements to consider during the recon include
:
Fuel type and loading
Fuel moisture
Chemical properties
Fuel size, shape and compactness
Vertical arrangement and horizontal continuitySlide4
Pre-burn Reconnaissance
Weather Factors
Temperature
Relative humidity
Inversions
Wind
- Direction
- Speed
- Duration
- Local influences
Recent and expected precipitationSlide5
Pre-burn Reconnaissance
Topography
Slope
Aspect
Elevation
Local influences
- Canyon
-
L
akes
- Mountains
- GlaciersSlide6
Pre-burn Reconnaissance
Fire Behavior
Fire types
- Surface
- Crown
Fire growth characteristics
- Head fires
- Backing fires
- Flank firesSlide7Slide8
Aerial Firing Ignition Patterns
Strip-head
Spot
Chevron
Center
Backing fire
Or a combination of the aboveSlide9
Fire Interaction
Fuels, weather, topography, fire behavior, and ignition patterns all interact to create fire effects.
Adjustments to firing patterns can be made to produce fire effects that will meet burn objective. Slide10Slide11Slide12
Unit Objectives
Identify key elements of the fire environment:
Fuels
Weather
Topography
Fire behavior