Documentation:MFD/Term/rate of spread

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rate of spread

MFD (Multilingual Forestry Dictionary)
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rate of spread noun

The relative activity of a fire in extending its horizontal dimensions. It is expressed as a rate of increase of the total perimeter of the fire, as rate of forward spread of the fire front, or as rate of increase in area, depending on the intended use of the information. Usually it is expressed in chains or acres per hour for a specific period in the fire's history[1].






  1. Fire Terminology. USDA Forest Service. Retrieved 2019, October 29.
  2. "Academic Dictionaries and Encyclopedias". Retrieved 1 November 2019.