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Bridge Fire

6 September

5 September


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 Piper Navajo remote sensing aircraft

Fire Science

Wildfire Monitoring and Prediction
Fire Mapping
Bridge Fire, San Bernardino NF
6 September 2003

As viewed by the FireMapper™ Thermal-Imaging Radiometer


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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.



Location Map:

Shaded relief map of the City Creek area. Color overlay shows area of processed imagery.

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Image 1:
Ground surface temperatures as viewed from above at 11.9 micrometers wavelength on 6 September 2003, between 4:00 and 4:12 PM PDT.

View this image as a Google Earth overlay

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Unburned vegetation is bright green; warmer bare ground and ash are gray in this false-color depiction.



SATURDAY SEPTEMBER 6, 2003 - 0800 MDT. (Courtesy of
BRIDGE, San Bernardino National Forest. A unified command between a Type 2 Incident Management Team (Domanski), Running Springs Fire District and San Bernardino County Fire Department is in place. The fire is in grass and brush, with a timber component in the upper reaches of the watershed. The fire is threatening areas with medium to high timber and vegetation mortality, many of which have high structure density in the urban interface. Highway 18 is closed between Sky Forest and Big Bear dam, and only residents are being allowed through at this time.
Highway 330 is closed from Live Oak at the tip to Highland at the bottom. There are mandatory evacuations in the communities of Smiley Park, Oak Knob, Running Springs, Arrowbear, Nob Hill, Enchanted Forest, and Fredalba. Structure protection is in place for 1,500 residences.

Archives of past fires: 2008 2007 2006 2005 2004 2003 2002 2001

Forest mapping: 2008 2007 2006 2005 2004 2003 2002 2001


FireMapper™ Specifications: Instrument

FireMapper™ References: Publications

FireMapper™ Tools- image analysis software: ftp downloads page

For Further Information: contact Dr. Philip J. Riggan

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.

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 Last Modified: 2006-03-15