Estimating Upslope Convective Windspeeds for Predicting Wildland Fire Behavior (Classic Reprint)
Estimating Upslope Convective Windspeeds for Predicting Wildland Fire Behavior (Classic Reprint)

Author: Frank a Albini

Publisher: Forgotten Books

Published: 2017-10-28

Total Pages: 32

ISBN-13: 9780265852941

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Excerpt from Estimating Upslope Convective Windspeeds for Predicting Wildland Fire Behavior Slope winds are local diurnal winds present on all sloping surfaces They flow upslope during the day as the result of surface heating, and down slope at night because of surface cooling. Slope winds are produced by the local pressure gradient caused by the difference in temperature between air near the slope and air at the same elevation away from the slope. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Estimating Windspeeds for Predicting Wildland Fire Behavior (Classic Reprint)
Estimating Windspeeds for Predicting Wildland Fire Behavior (Classic Reprint)

Author: Frank a Albini

Publisher: Forgotten Books

Published: 2018-03-30

Total Pages: 26

ISBN-13: 9780365707189

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Excerpt from Estimating Windspeeds for Predicting Wildland Fire Behavior By equating integrated bulk drag due to crown foliage to the shear stress at the top of the crown layer, a model for relating windspeed within and below a uniform forest canopy to windspeed 20 ft (6 m) over the canopy is developed. Important variables in this model include stand height, crown closure, foliar surface/ volume ratio, and crown bulk density. Comparison of model predictions with reported experimental measurements shows good agreement. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Nomographs for Estimating Surface Fire Behavior Characteristics
Nomographs for Estimating Surface Fire Behavior Characteristics

Author: Joe H. Scott

Publisher:

Published: 2007

Total Pages: 128

ISBN-13:

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A complete set of nomographs for estimating surface fire rate of spread and flame length for the original 13 and new 40 fire behavior fuel models is presented. The nomographs allow calculation of spread rate and flame length for wind in any direction with respect to slope and allow for nonheading spread directions. Basic instructions for use are included.

Field Procedures for Verification and Adjustment of Fire Behavior Predictions
Field Procedures for Verification and Adjustment of Fire Behavior Predictions

Author: Richard C. Rothermel

Publisher:

Published: 1983

Total Pages: 28

ISBN-13:

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The problem of verifying predictions of fire behavior, primarily rate of spread, is discussed in terms of the fire situation for which predictions are made, and the type of fire where data are to be collected. Procedures for collecting data and performing analysis are presented for both readily accessible fires where data should be complete, and for inaccessible fires where data are likely to be incomplete. The material is prepared for use by field units, with no requirements for special equipment or computers. Procedures for selecting the most representative fuel model, for overall evaluation of prediction capability, and for developing calibration coefficients to improve future predictions are presented. Illustrated examples from several fires are included. The material is a companion publication to the fire prediction manual titled, 'INT-GTR-143: How to predict the spread and intensity of forest and range fire' by R. C. Rothermel.