Can thermoluminescence be used to determine soil heating from a wildfire?

Radiation Measurements
By: , and 

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Abstract

The Silverado wildfire occurred from September 12 to 20, 2014, burning 960 acres in Orange County, California. Soil samples from within the burn area were obtained and the thermoluminescence (TL) properties of those samples were compared against a control sample to understand wildfire heating. We performed a series of experiments investigating the degree to which the control differed from the wildfire soil samples. This work showed that soil heated by a wildfire had a distinctly different glow curve shape than the unburned soil sample. Moreover, it was possible to see changes in the TL signal as a function of soil depth in wildfire-heated samples. Our experiments suggest that minimal soil heating occurred below approximately 10 cm. Estimates of wildfire temperatures, however, were nuanced.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Can thermoluminescence be used to determine soil heating from a wildfire?
Series title Radiation Measurements
DOI 10.1016/j.radmeas.2017.09.002
Volume 107
Year Published 2017
Language English
Publisher Elsevier
Contributing office(s) Geologic Hazards Science Center
Description 9 p.
First page 119
Last page 127
Country United States
State California