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Table 2 Parameter estimates and standard errors for generalized linear models predicting mean peak fire temperature (°C), heat duration (seconds above 60 °C), and heat dosage0 (°C·sec; calculated with a baseline of 0 degrees) as a function of fuel load, wind speed, air temperature, relative humidity, and scale of the burn (0 = small scale, 1 = large scale) in shortgrass steppe of northeastern Colorado. The magnitude of effect for each parameter refers to the difference between the predictions for the maximum versus minimum value of that parameter.

From: Characteristics of Burns Conducted under Modified Prescriptions to Mitigate Limited Fuels in a Semi-Arid Grassland

Model parameter Units Range evaluated Peak temperature (°C) Heat duration (sec) Heat dose0 (°C·sec)
Min. Mean Max. Parameter estimate 1SE Effect size Parameter estimate 1SE Effect size Parameter estimate 1SE Effect size
Intercept      18.90    11.3    −15 47.8   
Fuel load kg ha−1 97 614 1 175 0.12 0.01 131.4 0.08 0.02 81.9 10.0 2.0 10 819
Wind speed m sec−1 1.35 4.06 10.82 6.10 2.39 37.8 −0.41 1.30 24.9 −43.4 125.8 1 414
(Wind − 4.06)2 m sec−1     −0.56 0.42   −0.49 0.38   −24.3 33.6  
Air temperature °C 10.8 17.8 25.1 0.78 0.68 11.0 0.58 0.73 8.3 136.1 108.1 1 932
Relative humidity % 6.9 16.5 33.5 −0.17 0.28 4.5 0.09 0.27 2.3 8.8 30.5 233
Scale (0,1) 0   1 7.52 4.43 7.5 −5.67 4.64 −5.7 −327.2 445.2 327