records fire effects derived
from ocular estimates in five vertical strata: 1) surface fuels and soils;
2) herbs, low shrubs and trees less than 1 m tall; 3) shrubs and trees 1
to 5 m tall; 4) intermediate trees; and 5) large trees. Four or five
variables describing specific effects in each stratum were visually
estimated and scored with a value between zero and three, with zero
indicating no effect of the fire (i.e. unburned) and a three being
maximum severity. As an enhancement to the CBI protocol, actual
values were estimated and recorded for each variable on the SNFPA
fires that occurred during 2004 and the 2006 fires in the Klamath
Mountains. For example, the actual estimated percent canopy