Threshold Conditions for Extreme Fire Behaviour

This project is a part of the Next generation fire modelling cluster of Bushfire and Natural Hazards CRC research projects.

Particular fire phenomena occur only in extreme fire conditions. These include fire tornados, atmospheric coupling, ember storms and vorticity-driven lateral spread. Research into such phenomena is limited and there are no operational fire spread models that can accommodate them. The first step towards accounting for these phenomena is to describe them and the conditions under which they occur – this includes fuel conditions, surface weather and atmospheric profiles.

This project will build knowledge of the unique features of extreme fires by a) collating observations of extreme fires in Australia in recent years, and b) analysing fire phenomena in conjunction with accessory information (i.e. weather, fuel and topography).

Extreme fire behaviours. Fire whirl (Top) and ember storm (Bottom).