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Numerical study of effects of atmosphere temperature profile on wildfire behaviorAuthor(s): Chunmei Xia; M. Yousuff Hussaini; Philip Cunningham; Rodman R. Linn; Scott L. Goodrick
Source: In: Second international wildland fire ecology and fire managment congress and fifth symposium on fire and forest meteorology, November 16-20, Orlando, Florida, p. 1-9
Publication Series: Miscellaneous Publication
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DescriptionThe vertical temperature profile and hence the stability in the atmosphere near the ground vanes significantly between day and night. Typically, the potential temperature at the surface is higher than that above the ground during the day and lower than that above the ground during the night. Such differences in the vertical temperature profile might act to accelerate or slow down wildfire propagation accordingly. It is believed that low-level atmospheric stability influences wildfire behavior. Both observational studies (e.g., Werth & Ochoa 1993; Potter 1996) and numerical studies (e.g., Jenkins 2001) have been performed to compare with and verify the Haines Index (Haines 1988), which is a severity index for wildland fires based upon the stability and moisture content of the lower atmosphere. However, few of these studies isolated the effects of low-level atmospheric stability on fire behavior (e.g., spread rate, intensity, plume structure and evolution).
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CitationXia, Chunmei; Hussaini, M. Yousuff; Cunningham, Philip; Linn, Rodman R.; Goodrick, Scott L. 2003. Numerical study of effects of atmosphere temperature profile on wildfire behavior. In: Second international wildland fire ecology and fire managment congress and fifth symposium on fire and forest meteorology, November 16-20, Orlando, Florida, p. 1-9
- An examination of the sensitivity of numerically simulated wildfires to low-level atmospheric stability and moisture, and the consequences for the Haines Index
- Using a Simple Parcel Model to Investigate the Haines Index
- The potential impact of regional climate change on fire weather in the United States
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