Understanding the role of terrain geometry in eruptive bushfire behaviour. This project aims to improve understanding of the physical processes that cause eruptive bushfire behaviour, otherwise known as fire blow-up. Eruptive fire behaviour, characterised by rapid and unexpected escalation in fire intensity and rate of spread, is a global phenomenon that poses a major threat to fire-fighter safety and can seriously compromise bushfire suppression efforts. This project will address the role that ....Understanding the role of terrain geometry in eruptive bushfire behaviour. This project aims to improve understanding of the physical processes that cause eruptive bushfire behaviour, otherwise known as fire blow-up. Eruptive fire behaviour, characterised by rapid and unexpected escalation in fire intensity and rate of spread, is a global phenomenon that poses a major threat to fire-fighter safety and can seriously compromise bushfire suppression efforts. This project will address the role that terrain geometry plays in the incidence of fire eruption, through consideration of its effect on the attachment of flames to a surface. Expected outcomes include a dynamic fire spread modelling framework and the provision of better advice to bushfire authorities concerning fire blow-up.Read moreRead less
Understanding the role of deep flaming in violent pyroconvective events. This project aims to improve the prediction of firestorms by combining state-of-the-art knowledge of dynamic bushfire behaviour with atmospheric models to provide a comprehensive understanding of how the heat and moisture released by a bushfire interacts with ambient atmospheric instability to produce extreme fire events. Firestorms represent the most extreme and catastrophic phase of development of a bushfire. They often c ....Understanding the role of deep flaming in violent pyroconvective events. This project aims to improve the prediction of firestorms by combining state-of-the-art knowledge of dynamic bushfire behaviour with atmospheric models to provide a comprehensive understanding of how the heat and moisture released by a bushfire interacts with ambient atmospheric instability to produce extreme fire events. Firestorms represent the most extreme and catastrophic phase of development of a bushfire. They often cause broad-scale loss of property, environmental damage and human fatalities. Firestorms cannot be suppressed, and so accurate and timely warnings of their occurrence, combined with appropriate community responses, are the only way of mitigating their effects. Better understanding of extreme fire processes may improve mitigation planning, community safety, environmental outcomes and emergency response measures.Read moreRead less
Investigation of atypical bushfire spread driven by the interaction of wind, terrain and fire. Large bushfires continue to pose a significant risk to communities in south-eastern Australia. Despite this, there is still very little known about the processes driving the development of large bushfires. This project aims to improve understanding of extreme fire processes and thus improve mitigation planning, community safety and environmental outcomes.
The effect of climate change on the biogeochemistry of estuarine soft soils. The Australian coastline is dotted with soft clays to a significant depth. These soft clay deposits display excessive settlement characteristics, affecting transport infrastructure. Understanding the couplings between the biogeochemical composition of the pore liquid and the mechanical behaviour of soft soils is essential, but current engineering practice is limited. Sea level rise in Australia will potentially place as ....The effect of climate change on the biogeochemistry of estuarine soft soils. The Australian coastline is dotted with soft clays to a significant depth. These soft clay deposits display excessive settlement characteristics, affecting transport infrastructure. Understanding the couplings between the biogeochemical composition of the pore liquid and the mechanical behaviour of soft soils is essential, but current engineering practice is limited. Sea level rise in Australia will potentially place as much as $67 billion in transport infrastructure at risk; consequently, this project aims to examine the impact of climate change on the biogeochemical processes of estuarine sediments in relation to: geotechnical properties; soft soil stability under sea level change; and soil carbon sequestration.Read moreRead less
Effect of climate boundary changes on the Southern Westerly Winds. This project aims to produce high quality data on how the Southern Westerly Winds (SWW) respond to largescale changes in climate boundary conditions over multiple glacial-interglacial cycles. Because the SWW are key drivers of Southern Hemisphere climate, Southern Ocean circulation and global carbon dioxide concentrations, it is important to understand how they respond to changes in boundary conditions. Uncertainty about how they ....Effect of climate boundary changes on the Southern Westerly Winds. This project aims to produce high quality data on how the Southern Westerly Winds (SWW) respond to largescale changes in climate boundary conditions over multiple glacial-interglacial cycles. Because the SWW are key drivers of Southern Hemisphere climate, Southern Ocean circulation and global carbon dioxide concentrations, it is important to understand how they respond to changes in boundary conditions. Uncertainty about how they do so limits attempts at accurate predictive climate modelling. This project will test conceptual models of SWW dynamics and provide essential boundary conditions for predictive climate models. The project intends to simultaneously build and support a research capacity and global network, and advance Australia’s knowledge and contribution in the area of global climate dynamics.Read moreRead less
The evolution of the El Niño-Southern Oscillation in southeast Australia. El Niño events starve southeast Australia of rainfall, resulting in droughts and wildfires. El Niño activity is projected to amplify as global temperatures rise, heralding a serious threat to Australia's water security and the incidence and magnitude of wildfires. The key to understanding the potential effects of future changes in El Niño activity lies in the past. El Niño activity has varied substantially over the last 12 ....The evolution of the El Niño-Southern Oscillation in southeast Australia. El Niño events starve southeast Australia of rainfall, resulting in droughts and wildfires. El Niño activity is projected to amplify as global temperatures rise, heralding a serious threat to Australia's water security and the incidence and magnitude of wildfires. The key to understanding the potential effects of future changes in El Niño activity lies in the past. El Niño activity has varied substantially over the last 12,000 years. This project will reconstruct the response of southeast Australian climate, vegetation and fire activity to changes in El Niño activity over this period using lake sediments located in El Niño sensitive locations in Tasmania.Read moreRead less