RNR 355 Lecture Notes - Lecture 11: Firebreak, Melanie Moore, Herbaceous Plant
2 Oct 2018
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Rnr 355, spring 2018, introduction to wildland fire: exercise 2, fire behavior (v2) 1. Load up eight shrub fuel models (sh2 sh8) using the pull-downs on the right and set the query window on top to rate of spread (ch/hr) . The spreadsheet allows only 8 models so you can skip sh1. Sb4 and sb3 have the highest rate of spread. The ros at the speed of 20 for sb4 is. Sb2 at a windspeed of 20 is around 80 and for sb1 a. Set the slope to 0% (flat terrain), and use the maximum fuel moistures (12%, 13%, 14% in 1-, 10-, and 100-hr fuels respectively) and live fuels (120% herb, 150% woody). Look up these two models in s&b and report what they are called. around 370 and for sb3 it is 150. Sb3 the blowdown is moderate, trees compacted to near the ground. What is the ros (in ch/hr) at a windspeed of.
