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
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
PFAS transport through landfill clay liners enhanced with proteins. Per- and polyfluoroalkyl substances (PFAS) are a group of environmentally persistent, man-made chemicals found likely to be carcinogenic in humans. Due to their non-stick, water and stain repellences, PFAS have long been used in everyday products (food wrappers, carpets, furniture etc.) which end up in landfills. As it is currently unknown how PFAS move through the various components of landfill barriers, their fate and transpor ....PFAS transport through landfill clay liners enhanced with proteins. Per- and polyfluoroalkyl substances (PFAS) are a group of environmentally persistent, man-made chemicals found likely to be carcinogenic in humans. Due to their non-stick, water and stain repellences, PFAS have long been used in everyday products (food wrappers, carpets, furniture etc.) which end up in landfills. As it is currently unknown how PFAS move through the various components of landfill barriers, their fate and transport has become a priority for the regulators of Australia’s landfill sites according to the Australian 2018 PFAS National Environmental Management Plan. This research will determine PFAS transport through common clay barriers enhanced with proteins which have been shown to be an excellent sorbent for PFAS.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.