The dynamics and predictability of fire weather over southern Australia. As illustrated by the recent Victorian bushfires, Australia has one of the most severe fire climates in the world. Fires play a major role in modifying our landscape, affecting native flora and fauna, and damaging infrastructure and property. Effective fire fighting and fire management relies heavily on the prediction of fire weather and the impact of atmospheric conditions on fire behaviour. This project investigates some ....The dynamics and predictability of fire weather over southern Australia. As illustrated by the recent Victorian bushfires, Australia has one of the most severe fire climates in the world. Fires play a major role in modifying our landscape, affecting native flora and fauna, and damaging infrastructure and property. Effective fire fighting and fire management relies heavily on the prediction of fire weather and the impact of atmospheric conditions on fire behaviour. This project investigates some of the key processes that cause local enhancements in fire weather in regions of complex terrain like southern Australia.Read moreRead less
Interactions between small scale cyclones and sea ice and their role in the Southern Ocean climate system. The Southern Ocean cyclone belt has a strong influence on Australian weather and climate. This project will allow improvements in the understanding of intense small scale cyclones in the region. Importantly, the research will highlight key sensitivities in the coupling between these atmospheric circulations and the underlying sea ice. Further, the compilation of an updated Southern Ocean cy ....Interactions between small scale cyclones and sea ice and their role in the Southern Ocean climate system. The Southern Ocean cyclone belt has a strong influence on Australian weather and climate. This project will allow improvements in the understanding of intense small scale cyclones in the region. Importantly, the research will highlight key sensitivities in the coupling between these atmospheric circulations and the underlying sea ice. Further, the compilation of an updated Southern Ocean cyclone climatology will provide a basis for evaluating future changes in cyclone distribution and frequency of occurrence in the Antarctic region. Finally, by leading this unique international collaboration with German and US scientists, the profile of Australian scientists in Antarctic atmospheric research will be strongly enhanced.Read moreRead less
Simulating the evolution of the Southern Ocean and Australia's Palaeo-environment over 40 million years. Our project falls in the first national research priority: an environmentally sustainable Australia and meets two of its primary goals, understanding environmental change and the evolution of biodiversity, and responding to climate change and variability. Our models will represent a major step forward in differentiating between natural processes and anthropological input to present global cli ....Simulating the evolution of the Southern Ocean and Australia's Palaeo-environment over 40 million years. Our project falls in the first national research priority: an environmentally sustainable Australia and meets two of its primary goals, understanding environmental change and the evolution of biodiversity, and responding to climate change and variability. Our models will represent a major step forward in differentiating between natural processes and anthropological input to present global climate change and will address quantitatively how Australia changed from a continent rich in freshwater to the driest inhabited continent throughout the last 40 million years.Read moreRead less
What controls the shift from a hot house climate to a cold house climate: the Eocene/ Oligocene climate transition and greenhouse warming. This study contributes to putting Australia on the map as a centre of excellence in the study of past climates as well as in global warming research. It aims at a greater understanding of the dynamics of past warm climate states. This could ultimately lead to a better knowledge of the formation of the ancient deposits that we mine in Australia today. Furtherm ....What controls the shift from a hot house climate to a cold house climate: the Eocene/ Oligocene climate transition and greenhouse warming. This study contributes to putting Australia on the map as a centre of excellence in the study of past climates as well as in global warming research. It aims at a greater understanding of the dynamics of past warm climate states. This could ultimately lead to a better knowledge of the formation of the ancient deposits that we mine in Australia today. Furthermore, the study of these past warm climates tells us something about current global warming as both involve increased levels of carbon in the atmosphere. The impact of climate change on Australia is likely to be large. Our study of past warm climates helps to gain an understanding of the mechanisms behind climate change and help quantify the risks of climate change posed to Australia.Read moreRead less
The equable climate conundrum: the role of the global ocean in multiple climate regimes. This study will enhance Australia's global engagement in the research of past climates and global warming, and lead to a better understanding of the dynamics and modelling of warm climate states. This will contribute significantly to climate research in Australia and could lead to a better knowledge of the formation of the ancient deposits that we mine today. Furthermore, the study of past warm climates tel ....The equable climate conundrum: the role of the global ocean in multiple climate regimes. This study will enhance Australia's global engagement in the research of past climates and global warming, and lead to a better understanding of the dynamics and modelling of warm climate states. This will contribute significantly to climate research in Australia and could lead to a better knowledge of the formation of the ancient deposits that we mine today. Furthermore, the study of past warm climates tells us something about current global warming, as both involve increased levels of carbon in the atmosphere. The impact of climate change on Australia is likely to be large. This study of past warm climates will improve our understanding of climate change physics and help quantify the risks of climate change posed to Australia.Read moreRead less
Iron in the Antarctic sea ice zone and its role in the past and future climate. The Antarctic sea ice environment has remained poorly investigated for decades as it is difficult to access. Recent scientific advances have revealed that melting sea ice may provide a significant amount of the plant micro-nutrient iron to the Southern Ocean. Given that polar waters are iron-deficient and seasonal sea ice affects ~14 million square kilometres of ocean, the importance of iron fertilisation from deca ....Iron in the Antarctic sea ice zone and its role in the past and future climate. The Antarctic sea ice environment has remained poorly investigated for decades as it is difficult to access. Recent scientific advances have revealed that melting sea ice may provide a significant amount of the plant micro-nutrient iron to the Southern Ocean. Given that polar waters are iron-deficient and seasonal sea ice affects ~14 million square kilometres of ocean, the importance of iron fertilisation from decaying sea ice and its effect on global climate urgently need to be evaluated. This proposal aims at improving our understanding of Earth's complex system, and will inform future climate change policy in Australia.
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Polar Cap Region Boundary Dynamics. Geomagnetic storms have the potential to severely impair critical technology infrastructure. Consequences of strong geomagnetic activity can include power failures, pipeline corrosion, satellite failures, inaccurate GPS positioning and radio navigation. Knowledge of how, where and under which conditions this activity occurs is therefore crucial. The primary aim of this project is to extend our knowledge of the mechanisms by which this activity occurs. This wor ....Polar Cap Region Boundary Dynamics. Geomagnetic storms have the potential to severely impair critical technology infrastructure. Consequences of strong geomagnetic activity can include power failures, pipeline corrosion, satellite failures, inaccurate GPS positioning and radio navigation. Knowledge of how, where and under which conditions this activity occurs is therefore crucial. The primary aim of this project is to extend our knowledge of the mechanisms by which this activity occurs. This work will consolidate Australia's international space profile and provide excellent training in this field, helping Australia's future technology development.Read moreRead less
Formation, degradation and migration of a yet unidentified POP source. Australia has recently ratified the Stockholm Convention, targeting persistent organic pollutants (POPs) for global reduction and elimination. A significant gap exists, however, in understanding sources and pathways of POPs in Australia, and subtropical/tropical environments. Previous research has shown an extensive POP contamination in coastal Australia, and exposure of biota to elevated levels. The present study will evalua ....Formation, degradation and migration of a yet unidentified POP source. Australia has recently ratified the Stockholm Convention, targeting persistent organic pollutants (POPs) for global reduction and elimination. A significant gap exists, however, in understanding sources and pathways of POPs in Australia, and subtropical/tropical environments. Previous research has shown an extensive POP contamination in coastal Australia, and exposure of biota to elevated levels. The present study will evaluate the formation, degradation and migration of POPs, and their significance to Australia's past, present and future emissions. The outcomes will allow identification of sources, their prioritization for elimination and exposure prevention, and ultimately serve to protect the environment and human health in Australia.Read moreRead less
Helium droplets: a nanoscale laboratory for studying intermolecular bonding and chemical reactivity. This type of research requires a rather complicated apparatus capable of creating a stream of helium droplets, embedding molecules and interrogating their properties using laser spectroscopy. The apparatus built in Sydney is the only one capable of this in Australia and using this new apparatus we will create many novel, bizarre and intriguing aggregates of molecules and atoms. The project involv ....Helium droplets: a nanoscale laboratory for studying intermolecular bonding and chemical reactivity. This type of research requires a rather complicated apparatus capable of creating a stream of helium droplets, embedding molecules and interrogating their properties using laser spectroscopy. The apparatus built in Sydney is the only one capable of this in Australia and using this new apparatus we will create many novel, bizarre and intriguing aggregates of molecules and atoms. The project involves cutting-edge scientific methods and will shift the boundaries of can-do science in the laser laboratory at the University of Sydney and in Australia in general.Read moreRead less
The role of bush fires in the formation and fate of dioxin like chemicals in Australia. A global (POPs) treaty signed by more than 100 nations targets the reduction and elimination of dioxins, which are persistent, bioaccumlative and highly toxic to humans. Bushfires have been suggested as the major source of dioxins in Australia. Experimental data indicate bushfires may not represent the actual sources of dioxin. Our aim is to experimentally establish the levels of dioxins formed and re-emi ....The role of bush fires in the formation and fate of dioxin like chemicals in Australia. A global (POPs) treaty signed by more than 100 nations targets the reduction and elimination of dioxins, which are persistent, bioaccumlative and highly toxic to humans. Bushfires have been suggested as the major source of dioxins in Australia. Experimental data indicate bushfires may not represent the actual sources of dioxin. Our aim is to experimentally establish the levels of dioxins formed and re-emitted from bushfires in Australia. The results will assist to make informed decisions that lead to effective action for reducing dioxin contamination in Australia, fulfilling the treaty requirements and protecting the population and environment.
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