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

International Journal of Wildland Fire

Volume 31 Number 1 2022

RESEARCH FRONT: Third International Smoke Symposium (ISS3)

Guest Editors
Jessica McCarty (Miami University)
David R. Weise (USDA Forest Service)

WF20190Projection of future wildfire emissions in western USA under climate change: contributions from changes in wildfire, fuel loading and fuel moisture

Yongqiang Liu, Yang Liu, Joshua Fu, Cheng-En Yang, Xingyi Dong, Hanqin Tian, Bo Tao, Jia Yang, Yuhang Wang, Yufei Zou and Ziming Ke
pp. 1-13

Devastating air pollution events from wildfire smoke have increased dramatically in the western United States. Here we indicate that this situation would become worse in the future due to climate change. Increasing fuel amount for burning is an important contributor to increasing fire emissions, in addition to more wildfires.

WF20118Effect of moisture content and fuel type on emissions from vegetation using a steady state combustion apparatus

Priya Garg, Thomas Roche, Matthew Eden, Jacqueline Matz, Jessica M. Oakes, Chiara Bellini and Michael J. Gollner 0000-0002-6925-4020
pp. 14-23

A small-scale apparatus was used to understand the effect of fuel moisture content (FMC) and type on emissions from vegetation. Smouldering increased smoke production compared with flaming combustion; however, flaming was sensitive to FMC whereas smouldering was not. Differences between fuel species suggests fuel type also plays an important role.

WF20126Application of compositional data analysis to determine the effects of heating mode, moisture status and plant species on pyrolysates

David R. Weise 0000-0002-9671-7203, Thomas H. Fletcher 0000-0002-9999-4492, Mohammad-Saeed Safdari 0000-0003-2043-241X, Elham Amini and Javier Palarea-Albaladejo 0000-0003-0162-669X
pp. 24-45

Compositional data techniques were applied to show that heating mode, plant species and moisture status affected the composition of pyrolysis products in an improved and statistically rigorous analysis. These methods should be used for other compositional data related to wildland fire.

Graphical Abstract Image

Non-governmental organisations play critical roles in wildfire relief and recovery. Interviews after three Northern California wildfires reveal changes in NGO mission scope, impacts on mental health, the importance of coordination with government agencies and other NGOs, the value of prior disaster experience, and new challenges posed by the COVID-19 pandemic. Photograph (by Jennifer Gray Thompson) shows the home of Gary and Jean Jones destroyed in the Woolsey Fire. The Jones Family has lived on this land in Malibu Canyon for three decades and endured several wildfire threats, but nothing like the force of the Woolsey megafire event that destroyed their home on 8 November 2018

WF21081Understanding fire regimes in Europe

Luiz Felipe Galizia 0000-0002-3012-056X, Thomas Curt 0000-0002-2654-3009, Renaud Barbero 0000-0001-8610-0018 and Marcos Rodrigues 0000-0002-0477-0796
pp. 56-66

Pyrogeography provides a level of generalisation that aids in understanding fire regimes at large spatial scales. This study provides insights into current European pyroregions, which may serve as a basis for wildland fire risk management on a continental scale.

WF21035Regional drought synchronised historical fires in dry forests of the Montane Cordillera Ecozone, Canada

Raphaël D. Chavardès, Lori D. Daniels, Jill E. Harvey, Gregory A. Greene, Hélène Marcoux, Bianca N. I. Eskelson, Ze'ev Gedalof, Wesley Brookes, Rick Kubian, Jared D. Cochrane, John H. Nesbitt, Alexandra M. Pogue, Olivier Villemaire-Côté 0000-0003-2384-8007, Robert W. Gray and David W. Andison
pp. 67-80

From 1746 to 1945, fires commonly burned in dry forests of the Montane Cordillera Ecozone, Canada, synchronised by regional drought. Moderate-to-highly synchronous fires recurred once per 5.5 years. Post-1945 fire suppression, fuel accumulation and climate change enhanced the size and intensity of synchronous fires in 2017, 2018 and 2021 in British Columbia.

WF21068An empirical-based model for predicting the forward spread rate of wildfires in eucalypt forests

Miguel G. Cruz 0000-0003-3311-7582, N. Phillip Cheney, James S. Gould, W. Lachlan McCaw, Musa Kilinc and Andrew L. Sullivan 0000-0002-8038-8724
pp. 81-95

We used experimental fire and wildfire data to develop a model aimed at the operational prediction of the rate of fire spread in eucalypt forests. Model evaluation against independent datasets showed good predictive power, with relative errors observed to decrease with increasing rate of fire spread.

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