Fig. 3.

The high-fidelity physics model as well as the simplified model predict that increasing moisture density leads to smaller burned areas, which indicates that the simplified model captures the trends of the high-fidelity physics model and thus is sufficient for generating related training data in this example. a) Burned area in Tubbs domain for three input realizations with moisture densities 0.225, 0.136, and 0.029. The surface plots show the terrain height using a color gradient and the burned area in black. b) Comparison of burned areas over 20 different input realizations (environmental configurations) at different times after ignition between the large-scale simulation and the surrogate model trained on related data.