Journal article

Sub-canopy forest winds: understanding wind profiles for fire behaviour simulation

K Moon, TJ Duff, KG Tolhurst

Fire Safety Journal | Elsevier | Published : 2019

Abstract

Operational forest fire simulation models typically incorporate reduction factors to modify winds forecast to meteorological standards for open environments so that they characterise the sub-canopy winds that drive fire spread. While these reduction factors may vary between forest types, they are typically static; wind reduction is constant regardless of height within the sub-canopy space and forecast wind speed. The validity of using static wind reduction factors was investigated by measuring sub-canopy horizontal wind speeds at different heights in seven vegetation types across Victoria, Australia. We found that the vertical wind profiles were highly variable, with substantial variation i..

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Grants

Awarded by Pownall, Irving, Davis Trust fund as part of a PhD project at the University of Melbourne in the Faculty of Science


Funding Acknowledgements

Firstly, the authors would like to thank Mr. Brett Cirulis who contributed to the field measurements. This research was funded and supported by The Pownall, Irving, Davis Trust (Grant no. UTR7.161) fund as part of a PhD project at the University of Melbourne in the Faculty of Science to commemorate Elizabeth Pownall, Dorothy Irving and Margaret Davies. Additional support was received from the Bushfire Cooperative Research Centre and the Department of Environment, Land, Water and Planning, Victoria, Australia.