Fuel Moisture as Measured and Predicted During the 1988 Fires in Yellowstone Park PDF Download
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Author: Roberta A. Bartlette
Publisher:
ISBN:
Category : Forest fires
Languages : en
Pages : 8
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Book Description
Author: Roberta A. Bartlette
Publisher:
ISBN:
Category : Forest fires
Languages : en
Pages : 8
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Book Description
Author: Roberta A. Bartlette
Publisher:
ISBN:
Category : Forest fires
Languages : en
Pages : 7
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Book Description
Fine fuel moisture content, relative humidity, air temperature, and fire behavior were observed hourly for 48 hours on the North Fork Fire in Yellowstone National Park from August 25 to August 27, 1988. Fine fuel reached minimum moisture contents of 3 to 5 percent late in the afternoon, remained below 8 percent until after midnight, then rose to a maximum of 10 to 11 percent around 9 a.m. At this time, fires were burning actively well into the night, subsiding to low-intensity surface and ground fire during the morning, then entering the crowns in late afternoon. Live foliage moisture contents were sampled predawn and late afternoon. Standing dead boles, duff, and mineral soil were also sampled. Moisture contents were determined by Computrac moisture analyzer, ovendrying, and Delmhorst wood moisture meter. Measured fine fuel moisture contents were compared with those predicted by fire behavior analysts' tables and the BEHAVE fire prediction system.
Author: Aylmer D. Blakely
Publisher:
ISBN:
Category : Fireproofing agents
Languages : en
Pages : 450
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 414
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 534
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 256
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 68
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Book Description
Author: Joe H. Scott
Publisher:
ISBN:
Category : Fire risk assessment
Languages : en
Pages : 68
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Book Description
Fire managers are increasingly concerned about the threat of crown fires, yet only now are quantitative methods for assessing crown fire hazard being developed. Links among existing mathematical models of fire behavior are used to develop two indices of crown fire hazard-the Torching Index and Crowning Index. These indices can be used to ordinate different forest stands by their relative susceptibility to crown fire and to compare the effectiveness of crown fire mitigation treatments. The coupled model was used to simulate the wide range of fire behavior possible in a forest stand, from a low-intensity surface fire to a high-intensity active crown fire, for the purpose of comparing potential fire behavior. The hazard indices and behavior simulations incorporate the effects of surface fuel characteristics, dead and live fuel moistures (surface and crown), slope steepness, canopy base height, canopy bulk density, and wind reduction by the canopy. Example simulations are for western Montana Pinus ponderosa and Pinus contorta stands. Although some of the models presented here have had limited testing or restricted geographic applicability, the concepts will apply to models for other regions and new models with greater geographic applicability.
Author:
Publisher: Nophea Sasaki
ISBN: 4915870367
Category :
Languages : en
Pages : 285
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Book Description
Author:
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 846
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Book Description
