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The development of a high-quality wildfire occurrence model is an essential component in mapping present wildfire risk, and in projecting future wildfire dynamics with climate and land-use change. Here, we develop a new model for predicting the…
Author(s): Theodore Keeping, Sandy P. Harrison, Iain Colin Prentice
Year Published:

Extreme wildfire is an increasing threat to lives, property, and ecosystems across the United States and many parts of the world. Family forest owners (FFOs) own a large percentage of forestland in the United States, and actions and behaviors on…
Author(s): Sarah M. Butler, Brett J. Butler, Emma M. Sass
Year Published:

Background: As fire regimes are changing and wildfire disasters are becoming more frequent, the term megafire is increasingly used to describe impactful wildfires, under multiple meanings, both in academia and popular media. This has resulted in a…
Author(s): Cathelijine Stoof, Jasper R. de Vries, Marc Castellnou Ribau, María Fernandez-Fernandez, David Flores, Julissa Galarza Villamar, Nick Kettridge, Desmond Lartey, Peter F. Moore, Fiona Newman-Thacker, Susan J. Prichard, Pepijn Tersmette, Sam Tuijtel, Ivo Verhaar, Paulo M. Fernandes
Year Published:

Comprehensive pyrolysis models describe solid phase reaction rates with respect to the material temperature and the concentrations of components. In theory, this aspect of comprehensive pyrolysis models allows for true predictive capabilities for…
Author(s): Mark B. McKinnon, Holli Knight
Year Published:

Background: The global human footprint has fundamentally altered wildfire regimes, creating serious consequences for human health, biodiversity, and climate. However, it remains difficult to project how long-term interactions among land use,…
Author(s): Sayedeh Sara Sayedi
Year Published:

Fire whirls cause strong wind damage in large outdoor fires such as wildland fires and urban fires. A model to predict the maximum tangential wind velocity in laboratory-scale fire whirls without flames in a crosswind is developed based on a…
Author(s): Masahiko Shinohara
Year Published:

This paper presents a unique 15-year dataset of Incident Management Situation Reports (IMSR), which document daily wildland fire situations across ten geographical regions in the United States. The IMSR dataset includes summaries for each reported…
Author(s): Dung Tuan Nguyen, Erin J. Belval, Yu Wei, Karen C. Short, David E. Calkin
Year Published:

Background Fifty years after its initial publication, Rothermel’s model continues to underpin many operational fire modelling tools. Past authors have, however, suggested a possible oversensitivity of the Rothermel model to fuel depth in certain…
Author(s): Zakary Campbell-Lochrie, Michael R. Gallagher, Nick Skowronski, Rory Hadden
Year Published:

Background Fire whirls are often reported to occur in wildland fires and can induce serious difficulties in firefighting by abruptly modifying fire behaviour, exposing firefighters and even causing casualties. Aims The aim of this study was to…
Author(s): Kuibin Zhou, Yifan Wang, Albert Simeoni, Ruixing Dong
Year Published:

Background Fireline intensity (If) quantifies the power of the fireline and is used for various purposes. If and flame length (Lf) are relatable to each other using an empirical power function, which has been considered fuel-specific. Aims The aim…
Author(s): Carlos G. Rossa, David A. Davim, Angelo Sil, Paulo M. Fernandes
Year Published:

Following the destructive Lahaina Fire in Hawaii, our team has modeled the wind and fire spread processes to understand the drivers of this devastating event. The results are in good agreement with observations recorded during the event. Extreme…
Author(s): Timothy W. Juliano, Fernando Szasdi-Bardales, Neil P. Lareau, Kasra Shamsaei, Branko Kosović, Negar Elhami-Khorasani, Eric P. James, Hamed Ebrahimian
Year Published:

In this work, a series of laboratory surface fire experiments were performed over a pine needle fuel bed to investigate the effectiveness of a firebreak and the behaviors of a surface fire across a firebreak. Seven wind velocities of 0~3.0 m/s and…
Author(s): Hanwen Guo, Zhengyuan Yang, Ziqun Ye, Dong Xiang, Yunji Gao, Yuchun Zhang
Year Published:

Background: Wildfire often shows complex dynamic behaviour due to the inherent nature of ambient conditions, vegetation and ignition patterns. Merging fire is one such dynamic behaviour that plays a critical role in the safety of structures and…
Author(s): Rahul Wadhwani, Duncan Sutherland, K. A. M. Moinuddin, Xinyan Huang
Year Published:

Smouldering and flaming of solid fuels both originate after the pyrolysis reaction, and fires often transition between the two types of combustion. Smouldering-to-flaming (StF) transition introduces a sudden increase of the fire hazard in terms of…
Author(s): Muhammad A. Santoso, Eirik G. Christensen, Guillermo Rein
Year Published:

There is a dire need to improve our prediction capabilities of wildland fire behavior in a range of conditions from marginal burning to the most extreme. In order to develop a more physically-based operational wildland fire behavior model, we need…
Author(s): Sara S. McAllister, Torben Grumstrup
Year Published:

Predicting current and future wildfire frequency and size is central to wildfire control and management. Multiple fire danger indices (FDIs) that incorporate weather and fuel conditions have been developed and utilized to support wildfire…
Author(s): Guo Yu, Yan Feng, Jiali Wang, Daniel B. Wright
Year Published:

Terrestrial LiDAR scans (TLS) offer a rich data source for high-fidelity vegetation characterization, addressing the limitations of traditional fuel sampling methods by capturing spatially explicit distributions that have a significant impact on…
Author(s): Anthony Marcozzi, Jesse V. Johnson, Russell A. Parsons, Sarah Flanary, Carl A. Seielstad, Jacob Z. Downs
Year Published:

Fuel is the part of the fire behavior triangle that we can directly affect. So, we know that we need to get more proactive with fuels treatments and prescribed fire if we want to get a better handle on the fire situation. As we shift towards more…
Author(s): Russell A. Parsons, Lucas Wells, Anthony Marcozzi, Rodman Linn, J. Kevin Hiers, F. Pimont, Karen L. Riley, Ilkay Altintas, Sarah Flanary
Year Published:

Background: Native pinyon (Pinus spp.) and juniper (Juniperus spp.) trees are expanding into shrubland communities across the Western United States. These trees often outcompete with native sagebrush (Artemisia spp.) associated species, resulting in…
Author(s): Claire Williams, Lisa M. Ellsworth, Eva K. Strand, Matthew C. Reeves, Scott E. Shaff, Karen C. Short, Jeanne C. Chambers, Beth A. Newingham, Claire Tortorelli
Year Published:

Methods that integrate pre-, active-, and post-fire measurements to quantify fire effects across multiple spatial scales are needed to improve our understanding of ecological effects following fire and for informing natural resource management…
Author(s): Aaron M. Sparks, Alistair M. S. Smith, Andrew T. Hudak, Mark V. Corrao, Robert L. Kremens, Robert F. Keefe
Year Published: