USDA Forest Service

Fire and Environmental Research Applications Team


Fire and Environmental Research Applications Team
Pacific Wildland Fire Sciences Laboratory

400 N 34th Street, Suite 201
Seattle, WA 98103

(206) 732-7800

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United States Department of Agriculture Forest Service.

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Icon of magnifying glassPrefire Fuel Characteristics and Fuel Consumption for Devils Table and Kaboom Units

2007 Multi-Day Burn Pilot Executive Summary (143 kb)

2007 Multi-Day Burn Pilot Final Report (2.7 MB)




Collecting forest floor data on the Naches prescribed burns

FERA completed monitoring of the Devils Table and Kaboom units in June 2007 as part of the multiple day burn (air quality) demonstration project on the Naches Ranger District of the Okanogan and Wenatchee National Forests. An Fuel Characteristic Classification System fuelbed was first selected based on the fuelbed type to represent the sites. The woody fuel, litter, and duff loading was then measured before and after each prescribed fire to determine prefire fuel loading and total fuel consumption. Finally, Consume 3.0 was used to predict fuel consumption, emissions, and heat release rate.

The multiple day prescribed burn trials indicated that a fuels inventory or an FCCS fuelbed selection provided a good match of fuel loading input, and that Consume 3.0 was able to predict the total consumption of fire in these units within an acceptable margin of error. This indicates a the FCCS, or fuels inventory, coupled with fuel moisture prediction and Consume 3.0 provides fuel loading and fuel consumption predictive capable for front end inputs required by BlueSky to estimate concentrations and smoke impacts.

Project Lead: Roger Ottmar

This research was funded by the U.S. Forest Service, Pacific Northwest Region Fire and Aviation Staff

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