Figure 15

Illustration of the p-field approach for generating animated displays of simulated maps. A large simulation grid is first generated by shifting the 295 county centroids by EW increments of 33 km. This large grid is then populated with probability values using sequential Gaussian simulation and the risk semivariogram models of Figure 5. Last, the probability values are used to sample Gaussian local distributions of probability characterized by the Poisson kriging estimate and variance mapped in Figure 6 (Monte-Carlo simulation).