The fire characteristics chart is a graphical method of presenting primary surface or crown fire behavior characteristics or U.S. National Fire Danger Rating (NFDRS) indices. It is a stand-alone component of the BehavePlus fire modeling system. A desktop computer application produces fire characteristics charts for both fire danger and fire behavior in a format suitable for inclusion in reports and presentations. Chart scales, colors, labels, and legends are customizable. More information, including installation files, publications, and training, is available on FRAMES.
The fire behavior characteristics chart displays modeled or observed fire behavior, showing the relationship among rate of spread, flame length, fireline intensity, an heat per unit area. Charts are available for both surface and crown fire behavior, which differ in the flame length models use. Fire bevahior characteristics charts aid communication and interpretion of fire behavior. They can be used to improve model understanding, prescribed fire planning, briefings, and case studies.
The fire danger characteristics chart displays the relationship among Spread Component, Energy Release Component, and Burning Index by plotting the three values as a single point. Indices calculated by FireFamilyPlus can be imported into the Fire Characteristics Chart program. Example applications include comparing fire seasons, weather stations, and fuel models.
Image 1: Fire Characteristics Chart for surface fire
Image 2: Fire Characteristics Chart for fire danger rating