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International Journal of Wildland Fire International Journal of Wildland Fire Society
Journal of the International Association of Wildland Fire
International Journal of Wildland Fire

International Journal of Wildland Fire

Volume 32 Number 9 2023

WF22196A conservation-significant threatened mammal uses fire exclusions and shifts ranges in the presence of prescribed burning

Leticia F. Povh 0000-0003-0306-0191, Nicole Willers 0000-0002-9037-4596, Jill M. Shephard 0000-0002-4418-9891 and Patricia A. Fleming 0000-0002-0626-3851
pp. 1291-1303

To understand mainland quokkas’ use of habitat in relation to prescribed burns, and the effectiveness of fire exclusion within quokka range and habitat, we tracked movement patterns of 20 quokkas before and after prescribed burns and examined the important interactions between quokkas and prescribed fire in a flammable and fragmented landscape.

WF22107Future regional increases in simultaneous large Western USA wildfires

Seth McGinnis 0000-0001-8082-834X, Lee Kessenich 0000-0001-5954-9311, Linda Mearns, Alison Cullen, Harry Podschwit 0000-0001-5776-486X and Melissa Bukovsky 0000-0001-6415-965X
pp. 1304-1314

We project future numbers of simultaneous very large wildfires in Western USA based on outputs from climate simulations. In all regions, we project more fires and longer seasons of simultaneity, and years with high simultaneity becoming both more frequent and more extreme.

WF22200Predicting burn severity for integration with post-fire debris-flow hazard assessment: a case study from the Upper Colorado River Basin, USA

Adam G. Wells 0000-0001-9675-4963, Todd J. Hawbaker 0000-0003-0930-9154, J. Kevin Hiers 0000-0002-6813-8941, Jason Kean 0000-0003-3089-0369, Rachel A. Loehman 0000-0001-7680-1865 and Paul F. Steblein 0000-0001-7856-5106
pp. 1315-1331

graphical abstract image

Burn severity influences post-wildfire hazards such as debris flows, which can occur soon after fires. We modelled burn severity based on pre-fire landscape and fire-weather conditions, and we integrated burn severity predictions with debris-flow models to inform hazard mitigation and planning.

WF23013A phenology-driven fire danger index for northern grasslands

Johan Sjöström 0000-0001-8670-062X and Anders Granström 0000-0003-0723-024X
pp. 1332-1346

graphical abstract image

After snowmelt, northern grasslands typically consist of highly flammable grass litter. We analysed a series of experimental grassland fires, as well as Swedish wildfire dispatch data, to isolate the impeding effect of grass phenology on fire propagation. A complete grassfire danger index is presented, likely applicable to most regions with cold (snow-covered) winters.

WF23005Estimating Mediterranean stand fuel characteristics using handheld mobile laser scanning technology

Kadir Alperen Coskuner, Can Vatandaslar, Murat Ozturk, Ismet Harman, Ertugrul Bilgili, Uzay Karahalil, Tolga Berber and Esra Tunc Gormus
pp. 1347-1363

Accurate, timely and easily obtainable information on stand fuel characteristics plays an important role in fire behaviour prediction. In this study, stand fuel characteristics were measured using handheld mobile laser scanning in six fuel types. The results were compared to those obtained through field fuel measurements from the same plots.

WF22220FireFormer: an efficient Transformer to identify forest fire from surveillance cameras

Yuming Qiao, Wenyu Jiang, Fei Wang 0000-0001-7059-4287, Guofeng Su, Xin Li and Juncai Jiang
pp. 1364-1380

A Transformer-based model was proposed to identify the forest fire from surveillance camera images. This model proves to be superior in reducing the false alarm rate caused by the interference of different types of smoke, enabling to improve the efficiency of real-time monitoring and early warning of forest fires.

WF23034Effect of initial generating eddy height on formation and flame geometry of fire whirl

Congcong Ji, Naian Liu, Jiao Lei, Linhe Zhang, Xiaodong Xie and Yang Zhang
pp. 1381-1390

Fire whirl is an extreme fire behaviour in wildland fires occurring when buoyant fires are submerged in a generating eddy. The findings show that in addition to the heat release rate and the rotational strength, the initial generating eddy height also significantly affects the formation and flame geometry of fire whirls.

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