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International Journal of Wildland Fire

International Journal of Wildland Fire

Volume 32 Number 1 2023

Special Issue

IX International Conference on Forest Fire Research and 17th International Wildland Fire Safety Summit (Part 1)

Special issue organisers:
Miguel Almeida, Conference Scientific Committee, Coimbra, Portugal
Michael Flannigan, Conference Scientific Committee Chair, Edmonton, Canada
Luís Mário Ribeiro, Conference Co-chair, Coimbra, Portugal
Domingos Viegas, Conference Chair, Coimbra, Portugal

Here we introduce Part 1 of a special issue series arising from the IX International Conference on Forest Fire Research, held 14–18 November 2022, Coimbra, Portugal. This issue comprises eight papers covering a wide variety of topics. All papers in the issue are published Open Access.

WF22103Future expansion, seasonal lengthening and intensification of fire activity under climate change in southeastern France

François Pimont 0000-0002-9842-6207, Julien Ruffault 0000-0003-3647-8172, Thomas Opitz, Hélène Fargeon, Renaud Barbero, Jorge Castel-Clavera 0000-0001-6451-1019, Nicolas Martin-StPaul, Eric Rigolot and Jean-Luc Dupuy
pp. 4-14

Projections of fire activity in southeastern France show that very large increases in fire metrics arise mostly from an intensification in the already fire-prone region during the core of the current fire season and only to a lower degree from an expansion of the fire-prone region and lengthening of the season.

WF22086Disentangling the factors of spatio-temporal patterns of wildfire activity in south-eastern France

Jorge Castel-Clavera 0000-0001-6451-1019, François Pimont 0000-0002-9842-6207, Thomas Opitz, Julien Ruffault 0000-0003-3647-8172, Miguel Rivière and Jean-Luc Dupuy
pp. 15-28

We leveraged Bayesian spatio-temporal modelling to disentangle the contributions of climatic and non-climatic drivers for fire activity in Mediterranean France. We showed that recent fire-weather increase caused the increase of fire probability in the west; but in the east, it was over-compensated by a reduction of escaped-fire probability.

WF22101The role of helicity and fire–atmosphere turbulent energy transport in potential wildfire behaviour

Jiawei Zhang 0000-0001-7505-8870, Marwan Katurji, Peyman Zawar-Reza and Tara Strand
pp. 29-42

Temperature perturbations resulting from solar heating of Earth’s surface can induce buoyancy-driven wind turbulence. Using experimental numerical simulations, this work investigates how atmospheric wind turbulence, under different atmospheric conditions, can change the energy transfer within the fire area and subsequently impact fire behaviour.

WF22100Atmospheric turbulent structures and fire sweeps during shrub fires and implications for flaming zone behaviour

Marwan Katurji, Bob Noonan, Jiawei Zhang 0000-0001-7505-8870, Andres Valencia, Benjamin Schumacher 0000-0002-5572-9507, Jessica Kerr, Tara Strand, Grant Pearce 0000-0002-4876-2683 and Peyman Zawar-Reza
pp. 43-55

Multi-modal observations of fire behaviour and overlying atmospheric turbulence were carried out for four wind-driven gorse bush experimental fires. Novel image velocimetry analysis outlined the dynamics and scales of motion of fire sweeps in relation to overlying atmospheric coherent turbulent structures. Results are useful for evaluating coupled fire–atmosphere model simulations.

WF22079Comparing two methods to measure oxidative pyrolysis gases in a wind tunnel and in prescribed burns

David R. Weise 0000-0002-9671-7203, Timothy J. Johnson 0000-0001-9514-6288, Tanya L. Myers 0000-0001-8995-7033, Wei Min Hao 0000-0002-5604-8762, Stephen Baker, Javier Palarea-Albaladejo 0000-0003-0162-669X, Nicole K. Scharko, Ashley M. Bradley 0000-0001-7344-9640, Catherine A. Banach 0000-0001-6038-1624 and Russell G. Tonkyn 0000-0002-3955-3556
pp. 56-77

Oxidative pyrolysis gases were measured in a wind tunnel and small prescribed burns using two analytical methods. Gas composition measured by FTIR spectroscopy differed between wind tunnel and field fires. The relative amount of the primary fuel gases (CO, CH4) was not significantly affected by fire location.


In wildland–urban interface fires, particulates from combustion of natural vegetative and human-made fuels may have deleterious effects on the environment. Particulate samples were taken during both flaming combustion and smouldering combustion states. The morphology of the generated particulates is greatly influenced by the state of combustion for both fuels.

WF22143Deep peat fire persistently smouldering for weeks: a laboratory demonstration

Yunzhu Qin 0000-0001-9704-8630, Dayang Nur Sakinah Musa, Shaorun Lin 0000-0003-4090-1148 and Xinyan Huang 0000-0002-0584-8452
pp. 86-98
Graphical Abstract Image

Smouldering fire in peatland is one of the largest wildfire phenomena on Earth that can burn slowly deep underground without flame. Laboratory experiments on tall peat soil samples revealed burning, propagation and emission physics of deep smouldering wildfires in peatland.

WF22091Burnt wood management enhances soil multifunctionality at the medium term after a large wildfire in north-west Spain

José Manuel Fernández-Guisuraga, Leonor Calvo, Sara Huerta and Elena Marcos
pp. 99-110

Post-fire treatment consisting of leaving burnt logs and felled branches in close contact with the forest floor promotes the ability of the soil to sustain high values of multiple functions simultaneously in the medium term after wildfire, as compared to straw mulching application.

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Call for Papers

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