نتایج جستجو برای: wildfire spread

تعداد نتایج: 112773  

Journal: :European Journal of Operational Research 2012
Alexander Stepanov James MacGregor Smith

In this paper, a methodology for modeling surface wildfire propagation through a complex landscape is presented. The methodology utilizes a Delaunay triangulation to represent surface fire spread within the landscape. A procedure to construct the graph and estimate the rate of spread along the edges of a network is discussed. After the Delaunay data structure is constructed, a two pass shortest...

Journal: :جنگل و فرآورده های چوب 0
رقیه جهدی دکتری جنگلداری و اقتصاد جنگل دانشکدة منابع ‏طبیعی‏ دانشگاه ‏تهران، کرج، ایران علی اصغر درویش صفت استاد گروه جنگلداری و اقتصاد جنگل دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران وحید اعتماد استادیار گروه جنگلداری و اقتصاد جنگل دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران

temporal and spatial variations of fire behavior can be predicted using one of the semi-physical or empirical models developed over recent years. this article investigates the effect of different fuel moisture conditions on fire spread and behavior in national golestan park in july 2011 using farsite, flammap simulation systems, and previous ignition history. landscape data contains the topogra...

Journal: :Nonlinear Analysis: Real World Applications 2016

Journal: :GI Forum ... 2021

The scale and danger of wildfires are a growing concern in Western Canada. Northwest Fire Centre is one six designated wildfire management districts the Canadian Province British Columbia. It covers 25 million hectares, or quarter area province. centre sees greatest burned from spread province, although it experiences lowest number active annually. This study examined two Sentinel-2 images capt...

2013
Darío Rodríguez-Aseretto Daniele de Rigo Margherita Di Leo Ana Cortés Jesus San-Miguel-Ayanz

The European Forest Fire Information System (EFFIS) has been established by the Joint Research Centre (JRC) and the Directorate General for Environment (DG ENV) of the European Commission (EC) in close collaboration with the Member States and neighbour countries. EFFIS is intended as complementary system to national and regional systems in the countries, providing harmonised information require...

2010
A. A. Ager M. A. Finney

Wildfire simulation modelling was used to examine whether fuel reduction treatments can potentially reduce future wildfire emissions and provide carbon benefits. In contrast to previous reports, the current study modelled landscape scale effects of fuel treatments on fire spread and intensity, and used a probabilistic framework to quantify wildfire effects on carbon pools to account for stochas...

Journal: :Simulation 2012
Xiaolin Hu Yi Sun Lewis Ntaimo

DEVS-FIRE is a discrete event system specification (DEVS) model for simulating wildfire spread and suppression. It employs a cellular space model to simulate fire spread and agent models that interact with the cellular space to simulate fire suppression with realistic tactics. The complex interplay among forest cells and agents calls for formal treatment of the fire spread and fire suppression ...

Journal: :IEEE Transactions on Geoscience and Remote Sensing 2022

Predicting wildfire spread is critical for land management and disaster preparedness. To this end, we present `Next Day Wildfire Spread,' a curated, large-scale, multivariate data set of historical wildfires aggregating nearly decade remote-sensing across the United States. In contrast to existing fire sets based on Earth observation satellites, our combines 2D with multiple explanatory variabl...

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