All data should have a 1.5 mile buffer outside the study area to avoid edge effects.

STARFire uses relative values for importance to protect and improve resources from wildland fire. These values are organized by ecosystem condition and fire intensity through a structured elicitation process.
Basic Layers
Layer Format Comments
Ignition History Point Longer history is better
  • Structures
  • Roads
  • Water
  • Management Unit Boundaries
Point, Line, or Polygon Any layers that help to define the infrastructure of the study area

Provide a minimum of two wind directions and speeds that are typical of weather scenarios for the study area. For example, you might select a southwest direction at 10 MPH.
Fire Support Data
Data will be used in raster format for input to FlamMap. See FlamMap help for more detail; help is installed with FlamMap.
Layer/Theme Units Purpose
Elevation Meters or Feet Adiabatic adjustment of temperature and humidity and for conversion of fire spread between horizontal and slope distances
Slope Degrees Necessary for computing slope effects on fire spread and solar radiance.
Aspect degrees clockwise from North  
Canopy Cover Categories (1-4) or percentage For Computing wind reduction factors. This is NOT the same as crown closure, as it is the horizontal fraction of the ground covered by tree canopy.
Fuel Model NA  
Custom Fuels NA Only required if the fuel model used is custom.
Stand Height (optional) Meters or Feet Computes wind reduction to midflame height and spotting distances from torching trees. Good estimate of stand height would be the average height of the dominant and co-dominant trees in a stand
Canopy Base Height meters or feet Determines transition from surface fire to crown fire. For a single tree it is the height to the bottom of the live crown
Canopy Bulk Density (optional) kg/m3 or lb/ft3 Determines characteristics of crown fires
Fuel Moisture