TY - JOUR PY - 2014// TI - A comparison of three approaches for simulating fine-scale surface winds in support of wildland fire management. Part II. An exploratory study of the effect of simulated winds on fire growth simulations JO - International journal of wildland fire A1 - Forthofer, Jason M. A1 - Butler, Bret W. A1 - McHugh, Charles W. A1 - Finney, Mark A. A1 - Bradshaw, Larry S. A1 - Stratton, Richard D. A1 - Shannon, Kyle S. A1 - Wagenbrenner, Natalie S. SP - 982 EP - 994 VL - 23 IS - 7 N2 - The effect of fine-resolution wind simulations on fire growth simulations is explored. The wind models are (1) a wind field consisting of constant speed and direction applied everywhere over the area of interest; (2) a tool based on the solution of the conservation of mass only (termed mass-conserving model) and (3) a tool based on a solution of conservation of mass and momentum (termed momentum-conserving model). Fire simulations use the FARSITE fire simulation system to simulate fire growth for one hypothetical fire and two actual wildfires. The momentum-conserving model produced fire perimeters that most closely matched the observed fire spread, followed by the mass-conserving model and then the uniform winds. The results suggest that momentum-conserving and mass-conserving models can reduce the sensitivity of fire growth simulations to input wind direction, which is advantageous to fire growth modellers. The mass-conserving and momentum-conserving wind models may be useful for operational use as decision support tools in wildland fire management, prescribed fire planning, smoke dispersion modelling, and firefighter and public safety.
Language: en
LA - en SN - 1049-8001 UR - http://dx.doi.org/10.1071/WF12090 ID - ref1 ER -