A wildfire is any uncontrolled fire in combustible vegetation that occurs in the countryside or a wilderness area. Other names such as brush fire, bushfire, forest fire, grass fire, hill fire, peat fire, vegetation fire, veldfire, and wildland fire may be used to describe the same phenomenon depending on the type of vegetation being burned.
wildfire
Monday, May 23, 2011
Fire type
- Ground fires are fed by subterranean roots, duff and other buried organic matter
- Crawling or surface fires are fueled by low-lying vegetation such as leaf and timber litter, debris, grass, and low-lying shrubbery.
- Crown, canopy, or aerial fires burn suspended material at the canopy level, such as tall trees, vines, and mosses.
Effect of weather
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgixw3IzpBRH_s78CwJ_HqVuRzPv4DkiZl2xRRjRPYj8KJuhsCyoUjwJSIOHfpdxBv4kCoTAhZbM5UWbMhq99Gdz9WZj98EiK9PFUJEkY_V6Zcv-1rN8pRyThrU12ZNu2YXM5iLrPKFPiU2/s320/NI000121FS-lo.jpg)
Fire control consists of depriving a fire of fuel, oxygen or heat to prevent it from spreading or to put it out entirely.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgIGb44IZ4u7R-Oo8hvM31ZPp2oZl6gAzHSFVv27-KlsVE_sfl_rpGgf_4vizLAHMbQArlgp9Yjkr01t8ML4jfB2WVzOszW2G3F_c5fWBwZU3_yxVrbipUlKlq7tNQel2jDAkJ-pHUNjSZX/s320/australia-wildfire-1.jpg)
Class-B fires
Class-B fires (hydrocarbons, petroleums, and fuels on fire) require much different handling than the standard water approach. Many fuels, such as gasoline or oil float on water, and water would actually end up spreading the fire further.
One way to control a class-B fire would be to dump chemical dust on it—this is also a method for handling class-A fires, and actually tends to be preferable because sprayed water tends to cause property damage.
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