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Displaying 141 - 160 of 960

Climate change has lengthened wildfire seasons and transformed fire regimes throughout the world. Thus, capturing fuel and fire dynamics is critical for projecting Earth system processes in warmer and drier future. Recent advances in fire regime…
Author(s): Erin J. Hanan, Maureen C. Kennedy, Jianning Ren, Morris C. Johnson, Alistair M. S. Smith
Year Published:

This paper describes a series of tests conducted to evaluate prototype fire shelters designed to provide enhanced thermal protective insulation in wildland fire burn-over events. Full-scale laboratory and field tests are used to compare the thermal…
Author(s): Joseph P. Roise, John Williams, Roger Barker, John Morton-Aslanis
Year Published:

An analysis of a dataset (n = 58) of high-intensity wildfire observations in cured grasslands from southern Australia revealed a simple relationship suitable for quickly obtaining a first approximation of a fire’s spread rate under low dead fuel…
Author(s): Miguel G. Cruz, Martin E. Alexander, Musa Kilinc
Year Published:

The future of dry forests around the world is uncertain given predictions that rising temperatures and enhanced aridity will increase drought-induced tree mortality. Using forest management and ecological restoration to reduce density and…
Author(s): John Bradford, Robert K. Shriver, Marcos D. Robles, Lisa McCauley, Travis J. Woolley, Caitlin M. Andrews, Michael A. Crimmins, David M. Bell
Year Published:

The 2018-2021 wildfire seasons were a glimpse of the future: deadly damaging fires in Mediterranean regions and high fire activity outside the typical fire season, also in temperate and boreal areas. This challenge cannot be solved with the…
Author(s): Cathelijine Stoof, Nick Kettridge
Year Published:

The influence of meteorological conditions on wildfire behaviour and propagation has been recognised through the development of a variety of fire weather indices, which combine information on air temperature, atmospheric moisture and wind, amongst…
Author(s): J. Sharples
Year Published:

As the frequency and severity of wildfires escalates in many regions, the study of fire-resilient forestry practices becomes crucial. While forest owners may employ several silvicultural practices to mitigate fire damage, the analytical study of…
Author(s): João V. Patto, Renato Rosa
Year Published:

The Joint Fire Science Program (JFSP) and the Environmental Security Technology Certification Program (ESTCP) initiated the Fire and Smoke Model Experiment (FASMEE) (https://fasmee.net) by funding JFSP Project 15-S-01-01. This nationwide,…
Author(s): Roger D. Ottmar, Adam C. Watts, Sim Larkin, Tim Brown, Nancy H. F. French
Year Published:

The goal of decreasing wildfire hazard as much as possible, using minimal fuel treatments, has led to increasing scholarly interest in fuel reduction spatial optimisation. Most models in the field rest on the assumption of a known wind direction and…
Author(s): Assaf Shmuel, Eyal Heifetz
Year Published:

Aim Wildfire activity in recent years is notable not only for an expansion of total area burned but also for large, single-day fire spread events that pose challenges to ecological systems and human communities. Our objectives were to gain new…
Author(s): Jonathan D. Coop, Sean A. Parks, Camille Stevens-Rumann, Scott M. Ritter, Chad M. Hoffman
Year Published:

Night-time provides a critical window for slowing or extinguishing fires owing to the lower temperature and the lower vapour pressure deficit (VPD). However, fire danger is most often assessed based on daytime conditions1,2, capturing what promotes…
Author(s): Jennifer Balch, John T. Abatzoglou, Maxwell B. Joseph, Michael J. Koontz, Adam L. Mahood, Joe McGlinchy, Megan E. Cattau, A. Park Williams
Year Published:

This is the second part of a series of two papers concerning fire-spotting generated fires. While, in the first part, we focus on the impact of macro-scale factors on the growth of the burning area by considering the atmospheric stability conditions…
Author(s): Vera N. Egorova, Andrea Trucchia, Gianni Pagnini
Year Published:

Federal land managers in the United States are permitted to manage wildfires with strategies other than full suppression under appropriate conditions to achieve natural resource objectives. However, policy and scientific support for “managed…
Author(s): Emily Jane Davis, Heidi Huber-Stearns, Michael D. Caggiano, Darren McAvoy, Anthony S. Cheng, A. Deak, A. Evans
Year Published:

A detailed description is given of double burner fire whirls that are similar in structure to the type of combined whirls seen in nature. The whirls are generated using the fixed frame method, and two burners are placed symmetrically about the…
Author(s): Katherine A. Hartl, Alexander J. Smits
Year Published:

A microscale wildfire model, QES-Fire, that dynamically couples the fire front to microscale winds was developed using a simplified physics rate of spread (ROS) model, a kinematic plume-rise model and a mass-consistent wind solver. The model is…
Author(s): Matt Moody, Jeremy A. Gibbs, Steven K. Krueger, Derek V. Mallia, Eric Pardyjak, Adam K. Kochanski, Brian N. Bailey, Rob Stoll
Year Published:

The suggestion has been made within the wildland fire community that the rate of spread in the upper portion of the fire danger spectrum is largely independent of the physical fuel characteristics in certain forest ecosystem types. Our review and…
Author(s): Miguel G. Cruz, Martin E. Alexander, Paulo M. Fernandes
Year Published:

Fire behavior and intensity vary within and between fires, mediated by factors such as slope, aspect, elevation, fuel loading and vegetation type. These influences create a mosaic of burn severity, shaping forests around the world. These burn…
Author(s): Brooke R. Saari
Year Published:

This work experimentally investigates the fire spread of discrete fuels by using fuel beds of laser-cut cardboards in a wind tunnel. Two distinct particle ignition modes are identified: under lower wind speed and packing ratio, a part of the tilted…
Author(s): Qianqian He, Naian Liu, Xiaodong Xie, Linhe Zhang, Jaio Lei, Yang Zhang, Di Wu
Year Published:

Wildfires often exhibit complex and dynamic behaviour arising from interactions between the fire and surrounding environment that can create a rapid fire advance and result in loss of containment and critical fire safety concerns. A series of…
Author(s): Carlos Ribeiro, Luís Carlos Duarte Reis, Jorge R. Raposo, André Rodrigues, Domingos Xavier Viegas, J. Sharples
Year Published:

Firebrand spotting is a potential threat to people and infrastructure, which is difficult to predict and becomes more significant when the size of a fire and intensity increases. To conduct realistic physics-based modeling with firebrand transport,…
Author(s): Amila Wickramasinghe, Nazmul Khan, K. A. M. Moinuddin
Year Published: