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FOFEM - First Order Fire Effects Model | Print |

FOFEM imageFOFEM (a First Order Fire Effects Model) is a computer program for predicting tree mortality, fuel consumption, smoke production, and soil heating caused by prescribed fire or wildfire.

 

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Installation File: FOFEM6 (XP/Win7)
User Guide (Updated March 2013): FOFEM6 User Guide
Tutorial Exercises: FOFEM6 Tutorials

First order fire effects are those that concern the direct or indirect or immediate consequences of fire. First order fire effects form an important basis for prediction secondary effects such as tree regeneration plant succession, and changes in site productivity, but these long-term effects generally involve interaction with many variables (for example,, weather, animal use, insects, and disease) and are not predicted by this program. Currently, FOFEM provides quantitative fire effects information for tree mortality, fuel consumption mineral soil exposure, smoke and soil heating.

FOFEM is national in scope. It uses four geographical regions: Pacific West, Interior West, North East, and South East. Forest cover types provide an additional level of resolution within each region. Geographic regions and cover types are used both as part of the algorithm selection key, and also as a key to default input values.

FOFEM, the First Order Fire Effects Model, is a computer program developed to meet the needs of resource managers, planners, and analysts in predicting and planning for fire effects.

Quantitative predictions of fire effects are needed for planning prescribed fires that best accomplish resource needs, for impact assessment, and for long-range planning and policy development. We have developed the computer program FOFEM to meet this information need.

We anticipate that FOFEM will be useful in a variety of situations. Examples include: setting acceptable upper and lower fuel moistures for conducting prescribed burns; determining the number of acres that may be burned on a given day without exceeding particulate emission limits; assessing effects of wildfire; developing timber salvage guidelines following wildfire; and comparing expected outcomes of alternative actions.

First order fire effects are those that concern the direct or indirect or immediate consequences of fire. First order fire effects form an important basis for prediction secondary effects such as tree regeneration plant succession, and changes in site productivity, but these long-term effects generally involve interaction with many variables (for example,, weather, animal use, insects, and disease) and are not predicted by this program. Currently, FOFEM provides quantitative fire effects information for tree mortality, fuel consumption mineral soil exposure, smoke and soil heating.

FOFEM is national in scope. It uses four geographical regions: Pacific West, Interior West, North East, and South East. Forest cover types provide an additional level of resolution within each region. Geographic regions and cover types are used both as part of the algorithm selection key, and also as a key to default input values.

PRINCIPAL INVESTIGATORS

Robert Keane, Research Ecologist; Duncan Lutes, Fire Ecologist; Elizabeth Reinhardt, Research Forester

GOALS AND OBJECTIVES

FOFEM was developed to meet the needs of resource managers, planners, and analysts in predicting and planning for fire effects. Quantitative predictions of fire effects are needed for planning prescribed fires that best accomplish resource needs, for impact assessment, and for long-range planning and policy development. We have developed the computer program FOFEM to meet this information need.
FOFEM is useful in a variety of situations. Examples include: setting acceptable upper and lower fuel moistures for conducting prescribed burns; determining the number of acres that may be burned on a given day without exceeding particulate emission limits; assessing effects of wildfire; developing timber salvage guidelines following wildfire; and comparing expected outcomes of alternative actions.

Updates in FOFEM Ver. 6.0

  • Complete redesign of the user interface
  • Improved graphics and reports
  • Mortality tree species codes changed to NVCS PLANTS codes (FOFEM5 used six character codes)
  • FCCS cover types have been updated and now include foliage and branch fuels
  • Tree data exported from an FFI database can now be imported directly into the Mortality model
  • The soil simulation model has been refined so users can simulate soil heating under completely consumed duff
  • Added new tree mortality model for longleaf pine

PROJECT STATUS

Development is ongoing.

FUNDING ORGANIZATION

FOFEM was developed with support from the Rocky Mountain Research Station, Joint Fire Sciences Program JFSP image and Forest Service RD&A.

PUBLICATIONS

Reinhardt, Elizabeth. 2003. Using FOFEM 5.0 to estimate tree mortality, fuel consumption, smoke production, and soil heating from wildland fire. 7 p.

CREDITS

  • FOFEM6 was developed by Robert Keane and Duncan Lutes of the Missoula Fire Sciences Lab of the Rocky Mountain Research Station, USDA Forest Service.
  • FOFEM6 development was supported by the National Interagency Fuels Technology Transfer team of the USDA Forest Service RD&A Program, Forest Service Rocky Mountain Research Station, and Systems for Environmental Management.
  • Larry Gangi programmed FOFEM6.