Rothermel Equation for Slope Adjustment
\( \phi_s = e^{\beta \cdot \theta} \)
where:
\(\phi_s\) is the slope correction factor.
\(\beta\) is the slope factor.
\(\theta\) is the slope angle.
This equation accounts for the effect of slope on the rate of fire spread.
Slope Factor (Uphill):
0.069
Slope Factor (Downhill):
0.069
Minimum Factor (Downhill):
0.01