Grand Prix
Fire, San Bernardino County
25 October 2003
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 (see chart below). 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
Grand Prix fire (courtesy of
wildfire.cr.usgs.gov/ca_geomac). Active fires are labeled in
white. |
Click on the image above to view a larger JPEG image |
Fire Map
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Fire Imagery
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The following color-coded images depict apparent ground surface temperatures
in Celsius. Roads, streams, and the text in the background are from
a 1:24,000 topographic map.
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Note:
These images were collected by sensors in a small aircraft
flying in turbulent Santa Ana wind conditions, and slight
shifts and rotations between images is to be expected.
When the individual images are spliced together into a
larger mosaic, errors in edge matching may result in duplication
of some points near the seam, and the loss of others in
the overlap area.
Do not depend on these images for accurate fireline locations.
Use the map backgrounds as a general location guide, and
look for recognizable terrain features or landmarks on
the imagery itself for relative positioning of hotspots.
Bodies of water, street grids, open fields, highways, ridgelines
and stream courses show up well in this imagery.
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| Image 1:
Ground surface temperatures as viewed from above at 11.9
micrometers wavelength on 25 October 2003, at 7:16
PM PDT.
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Click on the image above to view a larger JPEG image in a new browser window |
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| Image 2:
Ground surface temperatures as viewed from above at 11.9
micrometers wavelength on 25 October 2003, at 8:49
PM PDT.
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Click on the image above to view a larger JPEG image in a new browser window |
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| Link 3:
All image metadata from FMT .aux files displayed in Google Earth.
View this metadata file in Google Earth
Additional paths-
56
58
59
61
62
66-repeat pass over 62
67-repeat pass over 62
68-repeat pass over 62
69-repeat pass over 62
70-repeat pass over 62
75-repeat pass over 62
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Narrative
from the INCIDENT MANAGEMENT SITUATION REPORT
THURSDAY OCTOBER 23, 2003 - 0530 MDT. (Courtesy of www.nifc.gov.) |
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Piper Navajo remote sensing aircraft
