FRST 320 Lecture 9: 9_Monitoring_fire_effects
Document Summary
Monitoring fire effects: monitoring fire effects from the ground. An index for the visual estimation of fire effects on different vegetation strata and substrates. Values range from 0 (unburned) to 3 (severely burned) The five strata scores are averaged over whole plot to obtain the plot-level cbi. Limited by subjective interpretation and visual assessment of criteria. Photos from u. s. national park service: monitoring fire effects from airplanes and space. On average, over the last 30 years, 2,000,000 ha of forest burns in canada every year. It is not feasible to monitor forest fire effects on the ground for every fire across such a sparsely-populated country as canada (3. 5 people per square km). Remote sensing of fire effects is ideal to map large areas, consistently. Generally, there are two forms of remote sensing: Passive remote sensing: an ambient source of light is available to illuminate the target surface which is recorded by a sensor.
