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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 30 Number 12 2021


Integrated datasets are needed to evaluate fire models. At present, publicly available, co-located, temporally synchronised, quality-assured, multiscale measures of pre-fire, active-fire and post-fire conditions are rare, thus hindering model evaluation efforts. We present established methods to aid in the delivery of integrated data to evaluate fire models.

WF20131Variability in wildland fuel patches following high-severity fire and post-fire treatments in the northern Sierra Nevada

Ian B. Moore, Brandon M. Collins, Daniel E. Foster, Ryan E. Tompkins, Jens T. Stevens 0000-0002-2234-1960 and Scott L. Stephens
pp. 921-932

Surface fuels, which strongly influence fire behaviour, are spread unevenly across the landscape. Quantifying how fuel loads vary across space will improve fire behaviour modelling and could help in making better land management decisions. Site preparation that commonly accompanies tree planting has ancillary benefits of reducing wildland fuel load and continuity.

WF21100'Any prediction is better than none'? A study of the perceptions of fire behaviour analysis users in Australia

Timothy Neale 0000-0003-4703-5801, Matteo Vergani 0000-0003-0546-4771, Chloe Begg, Musa Kilinc, Mike Wouters and Sarah Harris
pp. 946-953

Fire and land agencies are increasingly investing in predictive services for planning and operational response to wildfires. Previous studies suggest that institutional investment is a poor indicator of services being used. We surveyed predictive services users in Australia and found further evidence that social dynamics, such as interpersonal trust, shape utilisation.

WF21076Characterisation of thunderstorms that caused lightning-ignited wildfires

Anna Soler, Nicolau Pineda 0000-0002-2507-8424, Helen San Segundo, Joan Bech 0000-0003-3597-7439 and Joan Montanyà 0000-0003-2488-697X
pp. 954-970

Lightning is the main cause of natural wildland fires worldwide. Although wildfires in Mediterranean countries are mostly human-caused, the small fraction ignited by lightning can also develop into devastating wildfires. The present work studies the characteristics of the thunderstorms that produce lightning-caused wildfires in Catalonia, north-eastern Iberian Peninsula.


There is large variation – over small distances – in post-fire juvenile period and maturation rates (age at three times flowering) of Proteas in the Cape fynbos of South Africa. The more conservative fire return interval guidelines (50% rule) for prescribed burns should be followed.

WF20084Short- and long-term effects of surface fires on heat stress protein content in Scots pine needles

N. E. Korotaeva, I. G. Gette, N. V. Pacharkova, I. V. Kosov and G. B. Borovskii
pp. 978-989

Plants can minimise damaging effects of high temperatures through protective mechanisms; however, it is unknown how these mechanisms respond to extreme temperatures associated with wildfire. Previous fire exposure led to changes in the content of stress proteins and to a fairly long-term ‘heat stress memory’ in Scots pine needles.

WF20181Effect of uncompensable heat from the wildland firefighter helmet

Shae C. Gurney, Katherine S. Christison, Tyler Stenersen and Charles L. Dumke 0000-0002-6049-1951
pp. 990-997
Graphical Abstract Image

This investigation addressed the effects of wearing a standard wildland firefighter helmet on heat accumulation. It was found that compared with not wearing a helmet, subjects exercising in a heat chamber wearing wildland firefighter personal protective equipment accumulated heat and experienced redirection of blood flow to the head. Photographs (by T. Stenersen) show helmet trial in heat chamber (left) and non-helmet trial subject preparation (right).

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