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Available observations

22 July 20:26


Color Key of
Surface Temperatures

>600 C

400 C

200 C

75 C

74 C

0 C

Download and View Thermal Imagery
(as a KMZ file)
(as a KMZ file)
Shapefile format
(with instructions)

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.

Fire Science: Wildfire Monitoring and Prediction

Fire Imaging
Eagle Fire, San Diego County, CA
22 July 2011 between 20:26 and 20:39 PDT

As viewed by the FireMapper™ Thermal-Imaging Radiometer

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

Ground surface temperatures as viewed from above at 8-12 micrometers wavelength in the thermal infrared.


Image 1: Thermal Mosaic
Plan view of fire. Warmer tones (red, orange, yellow) represent recent or active combustion; areas of light gray are cooling ash or warm bare ground and the low temperatures of unburned forest and cool ground are shown in darker gray (see chart above).



Data from multiple visits may be included in this imagery. Click one of the links below to open a separate viewer with more display options.

(Zoom in to view over topographic map)




Weather conditions at time of data collection :
Ranchita station RCHC1; data from NOAA ROMAN system.

Past Weather Conditions for Ranchita
Observations prior to selected time: July 22, 2011 - 20:07 PDT

  20:07 24 Hour Max 24 Hour Min
Temperature 70.0° F 89.0 at 13:07 66.0 at 5:07
Dew Point 53.1° F 55.8 at 17:07 21.6 at 3:07
Wet_Bulb Temperature 59.2° F 65.7 at 16:07 46.4 at 3:07
Relative Humidity 55% 55 at 20:07 16 at 11:07
Wind Speed 6 mph from NW 17 at 0:07 6 at 12:07
Wind Gust 12 mph 29 at 0:07 12 at 9:07
Solar Radiation 29.0 W/m*m 1004.0 at 13:07 0.0 at 21:07
Fuel Temperature 69.0° F 107.0 at 13:07 62.0 at 5:07
10_hr_Fuel Moisture 4 gm 4 at 23:07 2 at 13:07
Battery voltage 13.20 volt 14.00 at 17:07 12.90 at 5:07

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: 2017-01-05