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Displaying 81 - 100 of 5663

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
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Increasing wildfire activity in forests worldwide has driven urgency in understanding current and future fire regimes. Spatial patterns of area burned at high severity strongly shape forest resilience and constitute a key dimension of fire regimes,…
Author(s): Michele S. Buonanduci, Daniel C. Donato, Joshua S. Halofsky, Maureen C. Kennedy, Brian J. Harvey
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Fire has always been an important component of many ecosystems, but anthropogenic global climate change is now altering fire regimes over much of Earth's land surface, spurring a more urgent need to understand the physical, biological, and chemical…
Author(s): Amy East, Amir AghaKouchak, Graziella Caprarelli, Gabriel Filippelli, Fabio Florindo, Charles H. Luce, Harihar Rajaram, Lynn M. Russell, Cristina Santin, Isaac Santos
Year Published:

Wildfires and fire seasons are commonly rated largely on the simple metric of area burned (more hectares: bad). A seemingly paradoxical narrative frames large fire seasons as a symptom of a forest health problem (too much fire), while simultaneously…
Author(s): Daniel C. Donato, Joshua S. Halofsky, Derek J. Churchill, Ryan D. Haugo, C. Alina Cansler, Annie Smith, Brian J. Harvey
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Temperate conifer forests stressed by climate change could be lost through tree regeneration decline in the interior of high-severity fires, resulting in type conversion to non-forest vegetation from seed-dispersal limitation, competition, drought…
Author(s): William L. Baker
Year Published:

Context In western US forests, the increasing frequency of large high-severity fires presents challenges for society. Quantifying how fuel conditions influence high-severity area is important for managing risks of large high-severity fires and…
Author(s): Emily J. Francis, Pariya Pourmohammadi, Zachary L. Steel, Brandon M. Collins, Matthew D. Hurteau
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The concept of fire resilience has become increasingly relevant as society looks to understand and respond to recent wildfire events. In particular, the idea of a 'fire resilient landscape' is one which has been utilised to explore how society can…
Author(s): Fiona Newman-Thacker, Marc Castellnou Ribau, Harm Bartholomeus, Cathelijine Stoof
Year Published:

Particulate matter (PM) is a major primary pollutant emitted during wildland fires that has the potential to pose significant health risks to individuals/communities who live and work in areas impacted by smoke events. Limiting exposure is the…
Author(s): Russell W. Long, Shawn P. Urbanski, Emily Lincoln, Maribel Colón, Surender Kaushik, Jonathan Krug, Robert Vanderpool, Matthew S. Landis
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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:

Fuel ignition potential is one of the primary drivers influencing the extent of damage in wildland and wildland–urban interface fires and it is a decisive factor in planning prescribed fires. Determining the susceptibility of fuels, which vary…
Author(s): Saurabh Saxena, Ritambhara Raj Dubey, Neda Yaghoobian
Year Published:

Background: Fire whirl is an extreme fire behaviour in wildland fires, and an essential factor for its formation is the surrounding generating eddy. No systematic experimental study has been conducted on natural fire whirls with varying heights of…
Author(s): Congcong Ji, Naian Liu, Jiao Lei, Linhe Zhang, Xiaodong Xie, Yang Zhang
Year Published:

The escalating climate and wildfire crises have generated worldwide interest in using proactive forest management (e.g. forest thinning, prescribed fire, cultural burning) to mitigate the risk of wildfire-caused carbon loss in forests. To estimate…
Author(s): Jamie L. Peeler, Lisa McCauley, Kerry L. Metlen, Travis J. Woolley, Kimberly Davis, Marcos D. Robles, Ryan D. Haugo, Karen L. Riley, Philip E. Higuera, Joseph E Fargione, Rob Addington, Steven Bassett, Kori Blankenship, Michael Case, Teresa B. Chapman, Edward Smith, Randy Swaty, Nathan Welch
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The goal of this work is to develop a material model for Norway spruce and Scots pine woods for use in performance-based fire safety design to predict char front progress and heat release in burning timber. For both woods a set of two different…
Author(s): Aleksi Rinta-Paavola, Dmitry Sukhomlinov, S. Hostikka
Year Published:

Background: An effective identification model is crucial to realise the real-time monitoring and early warning of forest fires from surveillance cameras. However, existing models are prone to generate numerous false alarms under the interference of…
Author(s): Yuming Qiao, Wenyu Jiang, Fei Wang, Guofeng Su, Xin Li, Juncai Jiang
Year Published:

Increasing area burned across western North America raises questions about the precedence and magnitude of changes in fire activity, relative to the historical range of variability (HRV) that ecosystems experienced over recent centuries and…
Author(s): Kyra Clark-Wolf, Philip E. Higuera, Bryan N. Shuman, Kendra K. McLauchlan
Year Published:

Fire whirls are frequently spotted during forest fires in which unburnt or half burnt fuel around the fire can be seen rotating along with the whirl. The fuel rotation inside the whirl affects the fire characteristics compared to the stationary…
Author(s): Pushpendra Kumar Vishwakarma, Saumitra Mishra, Kirti Bhushan Mishra, A. Aravind Kumar
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Background: Burn severity significantly increases the likelihood and volume of post-wildfire debris flows. Pre-fire severity predictions can expedite mitigation efforts because precipitation contributing to these hazards often occurs shortly after…
Author(s): Adam G. Wells, Todd J. Hawbaker, J. Kevin Hiers, Jason W. Kean, Rachel A. Loehman, Paul F. Steblein
Year Published:

In December 2022, twenty-one experts from land management agencies, Tribes, and organizations from across the country convened at the Wilderness and Fire Workshop in Gunnison, Colorado to consider the effects of over a century of fire exclusion on…
Author(s): Center for Public Lands Western Colorado University, USFS Aldo Leopold Wilderness Research Institute,
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Separation Distances are used throughout the world to protect people and assets from the potential hazardous effects from propellants, explosives, and pyrotechnics. The current separation distances for Hazard Division (HD) 1.3 substances and…
Author(s): Clint Guymon, Ming Liu, Josephine Covino
Year Published:

The growing scale of natural hazards highlights the need for models of governance capable of addressing risk across administrative boundaries. However, risk governance systems are often fragmented, decentralized, and sustained by informal linkages…
Author(s): Matthew Hamilton, Max Nielson-Pincus, Cody Evers
Year Published: