A Cellular Automaton Model of Wildfire Propagation and Extinction

We propose a new model to predict the spatial and temporal behavior of wildfires. Fire spread and intensity were simu­ lated using a cellular automaton model. Monte Carlo tech­ niques were used to provide fire risk probabilities for areas where fuel loadings and topography are known. The model assumes predetermined or measurable environmental varia­ bles such as wind direction and magnitude, relative humid­ ity, fuel moisture content, and air temperature. Implementation of the model allows the linking of fire moni­ toring using remotely sensed data, potentially in real time, to rapid simulations of predicted fire behavior. Calibration of the model is based on thermal infrared remotely sensed im­ agery of a test burn during 1986 in the San Dimas experi­ mental forest. The model and its various implementations show distinct promise for real-time fire management and fire risk planning.