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    Author(s): Chunmei Xia; M. Yousuff Hussaini; Philip Cunningham; Rodman R. Linn; Scott L. Goodrick
    Date: 2003
    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
    PDF: View PDF  (609 KB)

    Description

    The 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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    Citation

    Xia, 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

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