Are humans responsible for recent changes in the behaviour of tropical cyclones? Decoupling natural variability from human influence using isotopes. An increase in the frequency of intense landfalling tropical cyclones will have a major impact upon Australia's economy and the safety of its citizens and visitors. There is little doubt that global climate change will cause this increase. Understanding when this might occur and the extent of this change over and above that which could also occur na ....Are humans responsible for recent changes in the behaviour of tropical cyclones? Decoupling natural variability from human influence using isotopes. An increase in the frequency of intense landfalling tropical cyclones will have a major impact upon Australia's economy and the safety of its citizens and visitors. There is little doubt that global climate change will cause this increase. Understanding when this might occur and the extent of this change over and above that which could also occur naturally will help reduce economic loss and save peoples' lives. Using isotope records of tropical cyclones and global climate models we will differentiate natural from human induced changes and ascertain the likely future impact of this hazard on Australia and its near neighbours.Read moreRead less
Special Research Initiatives - Grant ID: SR0354580
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
Sustainable Futures through Understanding Past Human Responses to Environmental Change. This Network brings together researchers within archaeology and environmental sciences to develop cross-disciplinary and internationally comparative approaches to understanding past human responses to rapid environmental change. Integration of skills and perspectives from the Humanities and Sciences will create a generation of scholars able to work across different theoretical frameworks to formulate credible ....Sustainable Futures through Understanding Past Human Responses to Environmental Change. This Network brings together researchers within archaeology and environmental sciences to develop cross-disciplinary and internationally comparative approaches to understanding past human responses to rapid environmental change. Integration of skills and perspectives from the Humanities and Sciences will create a generation of scholars able to work across different theoretical frameworks to formulate credible responses to the challenge of creating sustainable societies in a changing world. Through a greater understanding of past societies' reactions to rapid environmental change, the Network will build on existing leading edge research and create a more informed guide to a sustainable future.Read moreRead less
River sensitivity to change: An assessment of threshold shifts between River Styles in Coastal NSW. Over 70% of coastal catchments in northern NSW comprise confined or partly-confined valleys in which floodplains are absent or discontinuous. Evolutionary controls on floodplain presence and their sensitivity to disturbance since European settlement will be explained. Increased understanding of the character, behaviour and evolution of these river types will provide a generic framework to assess ....River sensitivity to change: An assessment of threshold shifts between River Styles in Coastal NSW. Over 70% of coastal catchments in northern NSW comprise confined or partly-confined valleys in which floodplains are absent or discontinuous. Evolutionary controls on floodplain presence and their sensitivity to disturbance since European settlement will be explained. Increased understanding of the character, behaviour and evolution of these river types will provide a generic framework to assess river sensitivity to change. The understanding achieved via this project will form the basis upon which to manage these rivers in an environmentally sustainable manner.Read moreRead less
The history of North Stradbroke Island's wetlands: defining natural climate variability in south-east Queensland and improving ecosystem management. South-east Queensland has among the fastest growing populations in Australia. It has also experienced severe drought lasting more than a decade. These combined pressures have led to the expenditure of more than $9 Billion on water resource development. However, it is not known whether the current drought is part of a natural cycle (or, importantly, ....The history of North Stradbroke Island's wetlands: defining natural climate variability in south-east Queensland and improving ecosystem management. South-east Queensland has among the fastest growing populations in Australia. It has also experienced severe drought lasting more than a decade. These combined pressures have led to the expenditure of more than $9 Billion on water resource development. However, it is not known whether the current drought is part of a natural cycle (or, importantly, if it represents the worst extremes in such a cycle). We will determine whether this is the case and, in doing so, contribute to national and international debates about the role of human-induced vs natural climate change.Read moreRead less
New approaches for protecting stream health in temperate Australia: Devising nutrient and salinity guidelines using diatoms. Salinity and nutrient enrichment are the most significant forms of water quality degradation in Australian lowland rivers. This project will identify the biological effect of the water quality pollution and develop new methods for its assessment. Most importantly, through the identification of water quality "thresholds" which result in reduced biodiversity, better guidelin ....New approaches for protecting stream health in temperate Australia: Devising nutrient and salinity guidelines using diatoms. Salinity and nutrient enrichment are the most significant forms of water quality degradation in Australian lowland rivers. This project will identify the biological effect of the water quality pollution and develop new methods for its assessment. Most importantly, through the identification of water quality "thresholds" which result in reduced biodiversity, better guidelines for maintaining stream health will be developed.Read moreRead less
Stream power and river morphology in partly-confined valleys of coastal New South Wales, Australia. Rivers in the escarpment-dominated catchments of coastal NSW are characterised by confined and partly-confined valley-settings in which channels have little capacity to adjust. The key aim of this project is to determine controls on the distribution of floodplains in this landscape. Particular attention will be placed on the role played by stream power in determining the relationship between val ....Stream power and river morphology in partly-confined valleys of coastal New South Wales, Australia. Rivers in the escarpment-dominated catchments of coastal NSW are characterised by confined and partly-confined valley-settings in which channels have little capacity to adjust. The key aim of this project is to determine controls on the distribution of floodplains in this landscape. Particular attention will be placed on the role played by stream power in determining the relationship between valley incision and lateral expansion processes along river courses. Understanding controls on these rivers is critical in determining how they modify their form in response to various disturbance events (whether 'natural' of human-induced). Results will provide a rigorous basis with which to explain cross-catchment variability in river forms and processes, aiding our capacity to predict future adjustments to disturbance and develop river management strategies that 'work with nature'.Read moreRead less
Science of the Surf (SOS): The Development and Evaluation of a National Campaign to Reduce the Risk of Coastal Drowning. Australian beaches attract approximately 80 million domestic and international tourists a year and are an integral part of the Australian lifestyle. Each year, 58 people die and 563 people are hospitalised as a result of coastal drowning in Australia; many more are rescued by surf lifesavers. Many incidents occur when swimmers are caught in rip currents. Raising awareness abou ....Science of the Surf (SOS): The Development and Evaluation of a National Campaign to Reduce the Risk of Coastal Drowning. Australian beaches attract approximately 80 million domestic and international tourists a year and are an integral part of the Australian lifestyle. Each year, 58 people die and 563 people are hospitalised as a result of coastal drowning in Australia; many more are rescued by surf lifesavers. Many incidents occur when swimmers are caught in rip currents. Raising awareness about common surf hazards, such as rip currents, aims to minimise the risk of drowning. This research will promote and maintain good health and well being for Australians by delivering an effective drowning prevention intervention. In doing so, reducing drowning risk would save up to $187 million each year in health care costs.Read moreRead less
Environmental impacts of climate change in the Nile basin over the past 30,000 years. There is growing international and national concern over the possible environmental, economic and social impacts of global and regional climate change. This project brings together a multi-disciplinary team of internationally recognised research leaders and the resources they command to investigate the environmental impacts of climatic changes in the Nile basin over geologically recent times. The outcome will b ....Environmental impacts of climate change in the Nile basin over the past 30,000 years. There is growing international and national concern over the possible environmental, economic and social impacts of global and regional climate change. This project brings together a multi-disciplinary team of internationally recognised research leaders and the resources they command to investigate the environmental impacts of climatic changes in the Nile basin over geologically recent times. The outcome will be a more comprehensive understanding of how a major river system responds to global and regional climate change, and will provide an enhanced conceptual basis for anticipating how drainage systems such as the Murray-Darling could respond to future change.Read moreRead less
Fire Scar Impacts on Surface Heat and Moisture Fluxes in Australia's Tropical Savanna and Feedbacks to Local and Regional Climate. Fire burns as much as 250,000 km2 of northern Australia every year, mostly tropical savanna land. The atmospheric impacts of burning extend beyond the direct emissions of aerosol and trace gases to include the effects of land surface alteration on atmospheric circulation. Using observation and modelling, this study examines the modification of surface heat and mois ....Fire Scar Impacts on Surface Heat and Moisture Fluxes in Australia's Tropical Savanna and Feedbacks to Local and Regional Climate. Fire burns as much as 250,000 km2 of northern Australia every year, mostly tropical savanna land. The atmospheric impacts of burning extend beyond the direct emissions of aerosol and trace gases to include the effects of land surface alteration on atmospheric circulation. Using observation and modelling, this study examines the modification of surface heat and moisture fluxes to the atmosphere caused by fire scars, along with the impact of such changes on atmospheric motion and precipitation at a range of scales. This unique work is of fundamental scientific interest and significance for current and future management of this important national resource.Read moreRead less
Patterns and processes of carbon and water budgets across northern Australian landscapes: From point to region. Quantifying carbon sources and sinks and understanding the underlying processes are pre-requisites to informed policy decisions, especially as nations seek to develop strategies to manage carbon emissions and sequestration. Australia is unique because of its poor soils and high climate variability and is likely to have patterns and process of carbon that are globally different. We fo ....Patterns and processes of carbon and water budgets across northern Australian landscapes: From point to region. Quantifying carbon sources and sinks and understanding the underlying processes are pre-requisites to informed policy decisions, especially as nations seek to develop strategies to manage carbon emissions and sequestration. Australia is unique because of its poor soils and high climate variability and is likely to have patterns and process of carbon that are globally different. We focus on Australia's Top-End region, but will develop tools/methods that can be applied to other important Australian hot-spots. This project will support the existing National Carbon Accounting System by providing new information on processes and spatial variability and regional budgets of carbon and water budgets that underpin our international commitments.Read moreRead less