>700 C
500 C
300 C
150 C
75 C
45 C
25 C
<25 C
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Star Fire, Eldorado National
Forest
27 September 2001
As viewed by the FireMapper™
Thermal-Imaging Radiometer
Images were collected from the PSW Airborne Sciences
Aircraft and disseminated in part by satellite communications in
near-real time. FireMapper measures the radiance of emitted thermal-infrared
light, which readily penetrates smoke. False-color images shown
here depict the apparent surface temperature (in Celsius) as estimated
from radiance and a simple black-body model. Warmer tones represent
recent or active combustion; areas of gray are cooling ash or warm
bare ground. Low temperatures of unburned forest and cool ground
are shown in green. Images have been geographically referenced.
Vertical exaggeration in 3-D views is 1.5 to one unless otherwise
noted.
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Location map:
Red Star ridge near French Meadows Reservoir |
Click on the image above to view a larger JPEG image |
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Forest Imagery
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In the following false-color images healthy vegetation appears green and recently killed conifers appear magenta. (These RGB images depict reflected red light at 650 nm in red and blue, reflected near-IR light at 850 nm in green.)
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Image 1: digital aerial photography with reflected red light shown in magenta and reflected near-infrared light in green. Shown in this depiction are the resulting ash (with low near-infrared reflectance) and unburned forest (bright near-infrared reflectance) as viewed on 27 September 2001. Such data may aid in planning post-fire emergency rehabilitation of burned watersheds.
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Click on the image above to open a new browser window, then click to zoom in on a portion of that image.
Maximum resolution is 1.5 meters. |
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Image 1a:
Post-fire, 3-D mosaic of digital aerial photography with reflected red light shown in magenta and reflected near-infrared light in green. Shown in this depiction are the resulting ash (with low near-infrared reflectance) and unburned forest (bright near-infrared reflectance) as viewed on 27 September 2001. Such data may aid in planning post-fire emergency rehabilitation of burned watersheds. |
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