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Fire Behavior In Experimental Grass Fires
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Book Synopsis Fire Behavior in Experimental Grass Fires by : Darko R. Veljkovic
Download or read book Fire Behavior in Experimental Grass Fires written by Darko R. Veljkovic and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grasslands and other types of grass dominant ecosystems account for the majority of global fire events. Under climate change towards less humid and extended hot and dry periods, vulnerability of grass dominated ecosystems to a fire is projected to increase. Fire behavior is one of the key factors for understanding fire patterns and effects. This small-scale grass-fire experiment sought to explain how fire behavior properties of two bunchgrass species respond to increase in fuel density and composition. Although the results confirmed that higher fuel load and increased percentage of cheatgrass abundance leads to the increase in total mass consumption, rate of consumption and flame length, the relation with the decrease in the burning time is less defined. The burning properties of Idaho fescue were less influenced by increase in cheatgrass presence. These results highlight that changing fire behavior due to the increase in cheatgrass abundance is species specific and that more research is needed to understand the dynamics of both cheatgrass and other invasive species on fire behavior in grass dominated ecosystems.
Download or read book Grassfires written by Phil Cheney and published by CSIRO PUBLISHING. This book was released on 2008 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grassfirespresents the latest information from CSIRO on the behavior and spread of fires in grasslands. This second edition follows ten years of research aimed at improving the understanding of fundamental processes involved in the behavior of bushfires and grassfires. The book has been extensively revised and new case studies have been added to reflect the latest findings in research and investigations. The book covers all aspects of fire behavior and spread in the major types of grasses in Australia. It examines the factors that affect fire behavior in continuous grassy fuels; fire in spinifex fuels; the effect of weather and topography on fire spread; wildfire suppression strategies; and how to reconstruct grassfire spread after the fact. The three fire-spread meters designed by CSIRO and used for the prediction of fire danger and rate of spread of grassfires are explained and their use and limitations discussed. This new edition expands on the historical view of grassfires with respect to extensive Aboriginal burning, combustion chemistry, flame structure and temperature, spotting and spread in discontinuous/eaten out fuels, and the effect of wind in complex terrain. The case studies in the chapter "Wildfires and Their Suppression" have been updated and include the major wild grassfire events of recent years, the January 2003 ACT fires and the 2005 Wangary, SA fire. The "Myths, Facts and Fallacies" chapter includes new myths and a new section on personal safety during a wild grass fire. Of interest to all rural fire fighters and rural landholders, students and teachers of courses on landscape and ecological processes, rural and peri-urban dwellers, fire authorities and researchers.
Download or read book Fire behavior written by and published by . This book was released on 1981 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildland Fire in Ecosystems written by and published by . This book was released on 2000 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Field Procedures for Verification and Adjustment of Fire Behavior Predictions by : Richard C. Rothermel
Download or read book Field Procedures for Verification and Adjustment of Fire Behavior Predictions written by Richard C. Rothermel and published by . This book was released on 1983 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Variables Affecting First Order Fire Effects, Characteristics, and Behavior in Experimental and Prescribed Fires in Mixed and Tallgrass Prairie by : Mary Elizabeth Lata
Download or read book Variables Affecting First Order Fire Effects, Characteristics, and Behavior in Experimental and Prescribed Fires in Mixed and Tallgrass Prairie written by Mary Elizabeth Lata and published by . This book was released on 2006 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal dynamics from the fires in this study represent a broad range of grassland fires under conditions common for prescribed fire. Soil moisture appears to significantly affect temperatures and residence times below, at, and above the soil surface. Data were compared with output from FOFEM 5.2 to access the applicability of FOFEM for use in mixed grass and tallgrass prairie. FOFEM consistently underestimated soil heating by up to 419°C.
Book Synopsis Wildland Fire Behaviour by : Mark A. Finney
Download or read book Wildland Fire Behaviour written by Mark A. Finney and published by CSIRO PUBLISHING. This book was released on 2021-11 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wildland fires have an irreplaceable role in sustaining many of our forests, shrublands and grasslands. They can be used as controlled burns or occur as free-burning wildfires, and can sometimes be dangerous and destructive to fauna, human communities and natural resources. Through scientific understanding of their behaviour, we can develop the tools to reliably use and manage fires across landscapes in ways that are compatible with the constraints of modern society while benefiting the ecosystems. The science of wildland fire is incomplete, however. Even the simplest fire behaviours – how fast they spread, how long they burn and how large they get – arise from a dynamical system of physical processes interacting in unexplored ways with heterogeneous biological, ecological and meteorological factors across many scales of time and space. The physics of heat transfer, combustion and ignition, for example, operate in all fires at millimetre and millisecond scales but wildfires can become conflagrations that burn for months and exceed millions of hectares. Wildland Fire Behaviour: Dynamics, Principles and Processes examines what is known and unknown about wildfire behaviours. The authors introduce fire as a dynamical system along with traditional steady-state concepts. They then break down the system into its primary physical components, describe how they depend upon environmental factors, and explore system dynamics by constructing and exercising a nonlinear model. The limits of modelling and knowledge are discussed throughout but emphasised by review of large fire behaviours. Advancing knowledge of fire behaviours will require a multidisciplinary approach and rely on quality measurements from experimental research, as covered in the final chapters.
Book Synopsis Stopping the Big Ones ... Through Fire Research by :
Download or read book Stopping the Big Ones ... Through Fire Research written by and published by . This book was released on 1966 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Theoretical Investigation of Fire Behavior in Live Fuels by : Lulu Sun
Download or read book Experimental and Theoretical Investigation of Fire Behavior in Live Fuels written by Lulu Sun and published by . This book was released on 2006 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book BEHAVE written by Robert E. Burgan and published by . This book was released on 1984 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Studies of Fire-atmosphere Interactions During Grass Fires by : Craig Bauer Clements
Download or read book Experimental Studies of Fire-atmosphere Interactions During Grass Fires written by Craig Bauer Clements and published by . This book was released on 2007 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of fire-atmosphere interactions are very limited. This limitation is due to the extreme difficulty of making measurements in the fire environment. Experimental studies were conducted to gain a dynamical understanding of fire-atmosphere interactions associated with grass fires. These experiments used a number of instrument platforms placed within the fire perimeter. Data showed that the flows and turbulence were complex. Turbulence generated near the combustion zone was anisotropic and formed as a result of strong horizontal variance in the ambient wind direction. Turbulence in the upper plume was more isotropic and was associated with stronger buoyancy. Winds during fire front passage were two to three times greater than the ambient flow. Strong downdrafts were observed to occur behind the fire front and were associated with the entrainment of ambient air into the fire plume. In addition, downdrafts were observed ahead of the fire front and these were associated with the formation of a horizontal vortex. Ahead of the fire front a weak convergence zone formed and winds in this zone were less in magnitude than the ambient winds. Wind direction in the convergence zone shifted from ambient northerly direction to southerly indicating inflow into the approaching fire front. These experiments show that measurements within the fire zone can lead to useful data for better understanding fire-atmosphere interactions.
Book Synopsis Wildland Fire by : Michael John Gollner
Download or read book Wildland Fire written by Michael John Gollner and published by Frontiers Media SA. This book was released on 2020-08-28 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fire in North American Tallgrass Prairies by : Scott L. Collins
Download or read book Fire in North American Tallgrass Prairies written by Scott L. Collins and published by University of Oklahoma Press. This book was released on 1990 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on papers presented at a 1987 symposium, "Fire in North American Grasslands," cosponsored by the Ecological Society of America and the Botanical Society of America, this book represents an important contribution to key unanswered questions concerning the role of fire in grassland ecosystems: How often did fires occur in the past? Were they primarily natural or caused by humans? At what time of year did grasslands normally burn? How should fire be used as a management tool? What constitutes a proper prescribed burning regime both with and without grazing?
Download or read book BEHAVE written by Patricia L. Andrews and published by . This book was released on 1989 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the third publication describWilding the BEHAVE system of computer programs for predicting behavior of wildland fires. This publication adds the following predictive capabilities: distance firebrands are lofted ahead of a wind-driven surface fire, probabilities of firebrands igniting spot fires, scorch height of trees, and percentage of tree mortality. The system includes a separate module for graphing moisture content of fine, dead fuels. Basic assumptions, limitations, and application of the prediction models are discussed. Previous publications in the BEHAVE series are BEHAVE: fire behavior prediction and fuel modeling system-FUEL subsystem (Burgan and Rothermel 1984), and BEHAVE: fire behavior prediction and fuel modeling system-BURN subsystem, Part 1 (Andrews 1986).
Book Synopsis Fuel and Fire Behavior Prediction in Big Sagebrush by : James Kerr Brown
Download or read book Fuel and Fire Behavior Prediction in Big Sagebrush written by James Kerr Brown and published by . This book was released on 1982 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Control Notes written by and published by . This book was released on 1963 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rates of Spread of Wildfire in Alaskan Fuels by : Richard J. Barney
Download or read book Rates of Spread of Wildfire in Alaskan Fuels written by Richard J. Barney and published by . This book was released on 1978 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
