All data should have a 1.5 mile buffer outside the study area to avoid edge effects.
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.
|Ignition History||Point||Longer history is better|
-Management Unit -Boundaries
|Point, Line, or Polygon||Any layers that help to define the infrastructure of the study area|
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.
|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.|
|Custom Fuels||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|