Wildfires are common phenomena and most recently they are occurring at record breaking scale and intensity. In addition, the rapid expansion of human populations closer to the wildland has placed people and structures at risk when wildfires occur. In Southern California, wildfires are primarily fueled by chaparral shrubs. The chaparral fires are typically classified as crown fires, a dual layer type of wildfire composed of an elevated live fuel layer, known as crown layer, and a layer of dead fuel located above ground, called the surface fuel layer. Since the fire spread is typically most severe once it reaches the live crown fuels, understanding the conditions for the flame transition process from surface to crown is paramount. This presentation features work aiming to produce greater understanding of the processes via which chaparral crown fires ignite, transition and spread. To this purpose, a wind tunnel scale study was designed to assess the impact of wind speed and surface-crown fuel layer distance on fire behavior. It will be shown how different experimental parameters affect transition conditions, spread behavior and flame geometry. The regional scale study explores wildfire behavior and examines ways to deploy laboratory findings with the plethora of existing satellite data to derive data driven models of fire behavior. An effort to present fire science to the elementary school age students via physics-based video game will also be explained.
|Commitee:||Tsutsui, Hideaki, Weise, David R, Mobasher, Bahram|
|School:||University of California, Riverside|
|School Location:||United States -- California|
|Source:||DAI-B 81/4(E), Dissertation Abstracts International|
|Keywords:||Chaparral, Fire Behavior, Interactive Game, Laboratory, Satellite, Wildfire|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be