Table 2 Weather conditions and standard fire behavior parameters observed during the 9 prescribed burns conducted in spring of 2002 and 2003 in southern Alabama.
From: Comparing Techniques for Estimating Flame Temperature of Prescribed Fires
Trt Unit | Date | Total burn time (hrs) | Max. temp (C) | Average RH (%) | Min. RH (%) | Direction/wind speed (km/hr) | Mean Rate of Spread (m/hr) | Mean Flame Length (m) | Mean Fire Zone Width (m) | Mean Residence Time (min) |
|---|---|---|---|---|---|---|---|---|---|---|
burn only | ||||||||||
6 | 4/17/2002 | 6 | 32 | 45.4 | 38 | var / 8–10 | 62 | 1.1 | .9 | 4.8 |
1 | 5/15/2002 | 12 | 29 | 30.0 | 25 | NE / 5 | 63 | .6 | .4 | 3.1 |
11S | 5/20/2002 | 7 | 25 | 31.0 | 27 | NE / 5 | 37 | .6 | .6 | 4.0 |
11N | 5/21/2002 | 9 | 26 | 28.8 | 26 | N, NE / 5–13 | 47 | .6 | .4 | 3.9 |
thin and burn | ||||||||||
2 | 4/5/2002 | 17 | 19 | 32.4 | 21 | N, NE/10-23 | 27 | .5 | .5 | 8.3 |
14 | 5/1/2002 | 6 | 32 | 53.5 | 31 | S,SW/15–23 | 45 | .7 | .8 | 3.8 |
10 | 5/22/2002 | 11 | 27 | 31.6 | 25 | E / 8 | 27 | .6 | .5 | 5.1 |
herbicide and burn | ||||||||||
4 | 4/15/2003 | 9 | 29 | 34.4 | 25.0 | SE / 2–3 | 39 | .7 | .7 | 3.8 |
12 | 4/16/2003 | 10 | 29 | 38.1 | 29.0 | S,SW / 3–5 | 57 | 1.6 | .9 | 4.3 |
7 | 5/13/2003 | 8 | 29 | 31.5 | 22.0 | NE / 8 | ||||