Dead fuels
vFour size classes with
characteristic reaction times (time lags) to changes in
atmospheric moisture
v1-h 0 to 0.25" (0-6mm)
v10-h 0.25 to 1.0" (6 to
25mm)
v100-h 1.0 to 3.0" (25 to
76mm)
v1000-h 3.0 to 8.0" (76 to 203mm)