نتایج جستجو برای: wildfire

تعداد نتایج: 3925  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Sarah J Hart Tania Schoennagel Thomas T Veblen Teresa B Chapman

In the western United States, mountain pine beetles (MPBs) have killed pine trees across 71,000 km(2) of forest since the mid-1990s, leading to widespread concern that abundant dead fuels may increase area burned and exacerbate fire behavior. Although stand-level fire behavior models suggest that bark beetle-induced tree mortality increases flammability of stands by changing canopy and forest f...

2014
Benjamin P. Bryant Anthony L. Westerling

Over 21,000 future California residential wildfire risk scenarioswere developed on amonthly 1/8° grid, using statistical wildfire models. We explore interactions between two global emissions scenarios, three climate models, six spatially explicit population growth scenarios derived from two growth models, and a range of parameters defining properties’ vulnerability to loss. Scenarios are evalua...

2005
Alan J. Long

One of the major issues in the southern wildland-urban interface is the loss of homes to wildfire. For homeowners who live in an area with a medium to high risk of wildfire, this document provides useful information for protecting your property (see University of Florida/IFAS publication FOR 71 “Landscaping in Florida with Fire in Mind” to determine your wildfire risk, http://edis.ifas.ufl.edu/...

2005
Tae H. Kim Thomas J. Cova Andrea Brunelle

This paper examines the timing of protective action recommendations in relationship to the distance of wildfire to a threatened community using exploratory map animation. The 2003 Southern California Wildfires were animated to assist in understanding the complex interaction between fire progression and warnings to threatened communities. Exploratory map animation provides a useful post-event an...

2006
JOSHUA THORP STEPHEN GUERIN FRANK WIMBERLY MICHAEL AGAR DOUGLAS ROBERTS

This paper reviews a recent RedfishGroup project for the City of Santa Fe Fire and Police Department integrating wildfire simulation and agent-based modeling of traffic dynamics. Visualizations of the evacuation dynamics were used to communicate with citizens dangers faced during evacuations and to explore when shelter-in-place is a reasonable alternative to evacuation. Additional uses of the m...

Journal: :Environmental management 2012
Neelam C Poudyal Cassandra Johnson-Gaither Scott Goodrick J M Bowker Jianbang Gan

Wildland fire in the South commands considerable attention, given the expanding wildland urban interface (WUI) across the region. Much of this growth is propelled by higher income retirees and others desiring natural amenity residential settings. However, population growth in the WUI increases the likelihood of wildfire fire ignition caused by people, as humans account for 93% of all wildfires ...

Journal: :J. Artificial Societies and Social Simulation 2008
James D. A. Millington Raul Romero-Calcerrada John Wainwright George L. W. Perry

Humans have a long history of activity in Mediterranean Basin landscapes. Spatial heterogeneity in these landscapes hinders our understanding about the impacts of changes in human activity on ecological processes, such as wildfire. The use of spatially-explicit models that simulate processes at fine scales should aid the investigation of spatial patterns at the broader, landscape scale. Here, w...

2016
Kunpeng Yi Yulong Bao Sylvie Gauthier

Wildfire emissions in the boreal forests yield an important contribution to the chemical budget of the troposphere. To assess the contribution of wildfire to the emissions of atmospheric trace species in the Great Xing’an Mountains (GXM), which is also the most severe fire-prone boreal forest region in China, we estimated various wildfire activities by combining explicit spatio-temporal remote ...

Journal: :The American naturalist 2009
Richard D Zinck Volker Grimm

Understanding the dynamics of wildfire regimes is crucial for both regional forest management and predicting global interactions between fire regimes and climate. Accordingly, spatially explicit modeling of forest fire ecosystems is a very active field of research, including both generic and highly specific models. There is, however, a second field in which wildfire has served as a metaphor for...

2014
D. W. van der Kamp G. Bürger A. T. Werner

Evaluation of the Monthly Drought Code as a metric for fire weather in a region of complex terrain and uncertainties in future projections 1 INTRODUCTION Wildfire is an integral part of ecosystems. It is a major source of often positive disturbance in North Ameri-can forests which plays a critical role in determining ecosystem properties such as age structure, species abundance, and landscape p...

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