Elliptical-fire perimeter- and area-intensity distributions
Document Type: Journal Article
Author(s): E. A. Catchpole; Martin E. Alexander; A. Malcolm Gill
Publication Year: 1992

Cataloging Information

  • area burned
  • backfire spread rate
  • Byram's fireline intensity model
  • Canada
  • elliptical fire
  • elliptical shape factor
  • fire growth
  • fire management
  • fire perimeter
  • fire size
  • firebreak
  • fireline intensity
  • headfire intensity
  • ignition point
  • rate of spread
  • spatial distribution
  • statistical analysis
  • wildfires
  • wind
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Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 26097
Tall Timbers Record Number: 8456
TTRS Location Status: In-file
TTRS Call Number: Journals-C
TTRS Abstract Status: Okay, Fair use, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.


Equations are presented for determining the proportion of the total perimeter and area burned for a simple elliptically shaped fire for any specified range of Byram's fireline intensities. The same principles apply to any characteristic that is dependent on fireline intensity. Only three inputs are required: head-fire intensity; the elliptical shape factor; and the backfire spread rate. This last quantity is not required if it is assumed that the ignition point is at one focus of the ellipse. The spatial distributions produced have potential application to fire management.

Online Link(s):
Catchpole, E.A.; Alexander, M.E.; Gill, A.M. 1992. Elliptical-fire perimeter- and area-intensity distributions. Canadian Journal of Forest Research 22:968-972.