USDA Forest ServiceSkip navigational links    
 Pacific Southwest Research Station
 Pacific Southwest
Research Station
 About Us
 Contact Us
 Publications & Products

Bridge Fire

6 September

5 September


Pacific Southwest Research Station
800 Buchanan Street
West Annex Building
Albany, CA 94710-0011

(510) 559-6300

 United States Department of Agriculture Forest Service. USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.

>500 C

300 C

200 C

50 C

30 C

<30 C

 Piper Navajo remote sensing aircraft

Fire Science

Wildfire Monitoring and Prediction
Fire Imaging
Bridge Fire, San Bernardino NF
5 September 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.


Location Map

Bridge fire (courtesy of Active fires are labeled in white.

Click on the image above to view a larger JPEG image

Fire Map



Click on the image above to view a larger JPEG image
(opens a new browser window)
Fire Imagery

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.


Image 1:
Ground surface temperatures as viewed from above at 11.9 micrometers wavelength on 6 September 2003, between 1:10 and 1:23 AM PDT.

Click on the image above to view a larger JPEG image



Image 2:
Image from above, on a shaded relief map.

Click on the image above to view a larger JPEG image


Image 3:
Topographic view as seen from the northwest of Image 1.

Click on the image above to view a larger JPEG image
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.

Disclaimers | Privacy Policy

 Last Modified: 2005-03-03