Landscape Fire Behavior Inputs
In conjunction with a landscape file you select, fire behavior is driven by the inputs below. You also have the option of selecting either the Finney method or the Scott and Reinhardt method for calculating crown fire potential. See Crown Fire Calculation Options for a comparison of these two methods.
| Name | Units | Brief Description |
|---|---|---|
| WIND | ||
| 20-ft Wind Speed | Miles per hour | Wind velocity measured 20 feet (6 m) above the top of the tree or shrub canopy, or above the ground if canopy is absent. |
| Wind Direction | Degrees | Wind direction is the direction from which the wind is blowing, specified in degrees increasing clockwise from north (which is zero degrees). |
| CROWN FIRE INPUTS | ||
| Crown Fire Method | Unitless | Select one of two methods of calculating crown fire potential. See Crown Fire Calculation Options for more detail about these. |
| Foliar Moisture Content | Percentage | Moisture content of the crown foliage. The mass of water within the fuel particle expressed as a percentage of the fuel particle's oven-dry mass. |
| FUEL MOISTURE INPUTS | ||
| 1-hr Fuel Moisture | Percentage | Moisture content of 1-hour fuel (dead woody fuel 0 to ¼ inch or 0 to 6.4 mm in diameter) is the mass of water within the fuel particle expressed as a percentage of the fuel particle’s oven-dry mass. |
| 10-hr Fuel Moisture | Percentage | Moisture content of 10-hour fuel (dead woody fuel ¼ to 1 inch or 0.6 to 2.5 cm in diameter) is the mass of water within the fuel particle expressed as a percentage of the fuel particle’s oven-dry mass. |
| 100-hr Fuel Moisture | Percentage | Moisture content of 100-hour fuel (dead woody fuel 1 to 3 inches or 2.5 to 7.6 cm in diameter) is the mass of water within the fuel particle expressed as a percentage of the fuel particle’s oven-dry mass. |
| Live Herbaceous Fuel Moisture | Percentage | Moisture content of live herbaceous fuel is the mass of water within the fuel particle expressed as a percentage of the fuel particle’s oven-dry mass. |
| Live Woody Fuel Moisture | Percentage | Moisture content of live woody fuel is the mass of water within the fuel particle expressed as a percentage of the fuel particle’s oven-dry mass. |