A stochastic fire growth model
The introduction of randomness in a deterministic model is discussed in Ref. . Two methods are described. The first method, the more general one, consists in replacing the deterministic inputs to the model by random variables. The method implies that the major source of randomness is in the inputs, an assumption that is often realistic for fire models. The second method is to introduce random terms in the model equations, thus implying that the source of the randomness lies in the imperfection of the model. It is also possible to introduce randomness with both methods, as illustrated in Ref. .