Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Colin C. Simpson; Marwan Katurji; Michael T. Kiefer; Shiyuan Zhong; Joseph J. CharneyWarren E. HeilmanXindi Bian
    Date: 2013
    Source: In: Piantadosi, J.; Anderssen, R.S.; Boland, J., eds. MODSIM2013, 20th International Congress on modelling and simulation; 2013 December 1-6; Adelaide, Australia. [Place of publication unknown]: Modelling and Simulation Society of Australia and New Zealand: 270-276.
    Publication Series: Paper (invited, offered, keynote)
    Station: Northern Research Station
    PDF: View PDF  (1.81 MB)

    Description

    Blow-up fire behaviour can be broadly defined as a rapid escalation in the intensity or forward rate of spread of a wildland fire, and is often accompanied by extreme pyro-convection associated with rapid smoke release and dispersion. Blow-up fire behaviour is difficult to predict and has been linked to firefighter fatalities, making it an important fire management hazard. Byram (1954) compiled the first observational dataset of categorised wind speed and direction profiles associated with blow-up fire behaviour. Low-level jets, varying in height between 30 and 1000 m above ground level (AGL), are a common feature in Byram's wind-profile types. Additional studies have qualitatively discussed how low-level jets can influence wildland fire behaviour and pyro-convective plume dynamics. However, there has been little quantitative testing and analysis of the physical processes linking low-level jets and blow-up fire behaviour. The principle aim of this study was to use the Advanced Regional Prediction System (ARPS) at high-resolution, with a 50 m horizontal grid spacing, to numerically simulate the sensitivity of the downwind pyro-convective plume dynamics to four of the Byram wind-profile types.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
    • Our on-line publications are scanned and captured using Adobe Acrobat.
    • During the capture process some typographical errors may occur.
    • Please contact Sharon Hobrla, shobrla@fs.fed.us if you notice any errors which make this publication unusable.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Simpson, Colin C.; Katurji, Marwan; Kiefer, Michael T.; Zhong, Shiyuan; Charney, Joseph J.; Heilman, Warren E.; Bian, Xindi. 2013. Atmosphere-fire simulation of effects of low-level jets on pyro-convective plume dynamics. In: Piantadosi, J.; Anderssen, R.S.; Boland, J., eds. MODSIM2013, 20th International Congress on modelling and simulation; 2013 December 1-6; Adelaide, Australia. [Place of publication unknown]: Modelling and Simulation Society of Australia and New Zealand: 270-276.

    Keywords

    Blow-up fire behaviour, atmosphere-fire numerical modelling, pyro-convective plume dynamics

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/47447