|
|
|
Fire Science |
|
Wildfire Monitoring and Prediction
|
Fire
Imaging |
|
|
|
McNally Fire, Sequoia
National Forest
20 August 2002
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.
|
|
|
Location Map |
Click on the image above to view a larger JPEG image
|
|
|
Image 1:
Ground surface temperatures as viewed from above at 11.5 to
12.3 micrometres wavelength on 20 August 2002, between 2:00
and 3:15 pm.
|
Click on the image above to view a larger JPEG image
|
|
|
Image 1a:
Same as above Image 1, but with a 100K topo map background
with overlaid magenta Section lines and aqua Stream courses.
A lower cutoff temperature was used for the Green/Gray boundary.
|
Click on the image above to view a larger JPEG image
|
|
|
|
Image 2:
Ground surface temperatures as viewed from above at 11.5 to
12.3 micrometres wavelength on 20 August 2002, between 3:15
and 3:25 pm.
|
Click on the image above to view a larger JPEG image
|
|
|
Pass order:
13
4
6
7
9
11
14
|
Download the data from the passes at full resolution,
in geo-coded tif format zip files from our ftp site!
(Teale Albers projection)
|
|
Pass
4 |
|
Pass
6 |
|
Pass
7 |
|
Pass
9 |
|
Pass
11 |
|
Pass
13 |
|
Pass
14 |
After downloading a TIFF as a zip file, decompress it with WinZip
(or your favorite ZIP utility) and the TIFF will be viewable in
WangIMG or other graphics viewer. Included are the auxiliary files
necessary for proper geo-referencing (if the viewer has that capability).
|
|
|
|
|
FireMapper has
been developed through a Research Joint Venture with Space Instruments,
Inc., and support from the National Fire Plan, Forest Service International
Programs, the U.S. Department of Agriculture, the Joint Fire Sciences Program, and the U.S. Agency
for International Development.
Disclaimer: Trade names, commercial products, and enterprises
are mentioned solely for information. No endorsement by the U.S. Department
of Agriculture is implied.
|