Appendix A. Fire hazard function parameters.
Averages and standard deviations for fire return intervals reported with corresponding scale (b) and shape (c) parameters for the Weibull fire hazard function. Results for fuel-driven fires (c = 3) and a combination of fuel- and weather- driven fires (c = 1.42) are shown.
Scale parameter b |
Average fire return interval (yr) |
Standard deviation of fire interval |
Standard deviation of fire interval |
5.599 |
10 |
3.288 |
6.898 |
11.598 |
20 |
7.020 |
14.434 |
17.21 |
30 |
10.868 |
20.81 |
22.756 |
40 |
13.918 |
28.768 |
28.205 |
50 |
17.878 |
35.466 |
33.997 |
60 |
21.196 |
42.604 |
39.594 |
70 |
24.968 |
50.206 |
45.295 |
80 |
28.602 |
58.118 |