Darwin Harbour corals as environmental data archives and bio-monitors. The forecast rapid population growth and industrial development of the Darwin Harbour catchment necessitates research into novel environmental monitoring techniques to aid the sustainable management of the Harbours resources. This project will develop a powerful and cost-effective bio-monitoring system by using chemical data stored in yearly growth bands of coral skeletons stretching back at least two centuries. Such data wil ....Darwin Harbour corals as environmental data archives and bio-monitors. The forecast rapid population growth and industrial development of the Darwin Harbour catchment necessitates research into novel environmental monitoring techniques to aid the sustainable management of the Harbours resources. This project will develop a powerful and cost-effective bio-monitoring system by using chemical data stored in yearly growth bands of coral skeletons stretching back at least two centuries. Such data will form a comparative baseline against which present and future coral data on pollutants released by urban, industrial and other developments can be assessed.Read moreRead less
Microbiology of a tropical creek impacted by sewage effluent: novel assessment using N-cycle functional markers and changes in community composition. Although most of Darwin Harbour has good water quality, there is much concern about local 'hot spots' where sewage has degraded ecosystem processes and values. As no bio-indicators of tropical marine water and sediment quality are known, the project will identify functional markers and microbial indicators of stress for integrated environmental mo ....Microbiology of a tropical creek impacted by sewage effluent: novel assessment using N-cycle functional markers and changes in community composition. Although most of Darwin Harbour has good water quality, there is much concern about local 'hot spots' where sewage has degraded ecosystem processes and values. As no bio-indicators of tropical marine water and sediment quality are known, the project will identify functional markers and microbial indicators of stress for integrated environmental monitoring.Read moreRead less
Automated groundwater level mapping: a tool for catchment scale estimation of aquifer storage changes, fluxes and hydrogeological properties. Cutting-edge groundwater mapping tools will be developed by this project and made freely available. Water table maps will be derived for Victoria and used to quantify aquifer properties, recharge and the groundwater balance. Fundamental limitations to quantitative groundwater management will be overcome and the Bureau of Meteorology intend to adopt the fin ....Automated groundwater level mapping: a tool for catchment scale estimation of aquifer storage changes, fluxes and hydrogeological properties. Cutting-edge groundwater mapping tools will be developed by this project and made freely available. Water table maps will be derived for Victoria and used to quantify aquifer properties, recharge and the groundwater balance. Fundamental limitations to quantitative groundwater management will be overcome and the Bureau of Meteorology intend to adopt the findings.Read moreRead less
Sustaining intensive agriculture through droughts and floods. This project aims to develop state-of-the-art conceptual and numerical models of river-soil-groundwater interactions to address complex and persistent questions on water sustainability in the Lower Burdekin Delta, Queensland, where groundwater pumping to irrigate sugarcane has been supplemented by artificial recharge for over 50 years. This project expects to deliver new knowledge of critical aquifer processes to inform the scheme ope ....Sustaining intensive agriculture through droughts and floods. This project aims to develop state-of-the-art conceptual and numerical models of river-soil-groundwater interactions to address complex and persistent questions on water sustainability in the Lower Burdekin Delta, Queensland, where groundwater pumping to irrigate sugarcane has been supplemented by artificial recharge for over 50 years. This project expects to deliver new knowledge of critical aquifer processes to inform the scheme operation, the largest in the country. Expected outcomes include ground-breaking management plans for the aquifer-replenishment scheme. Anticipated benefits involve balancing the needs of agriculture and the protection of pristine environments, including groundwater discharge to the Great Barrier Reef.
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Threats to the water quality and ecosystem of Coffin Bay, South Australia. Coffin Bay (South Australia) is experiencing worsening environmental conditions despite its major economic and ecological importance. Research is needed to understand the cause of this decline, particularly in light of a recent bacterial outbreak that impacted the aquaculture industry. This multidisciplinary project aims to deliver world-leading scientific advice based on novel field techniques and innovative models of th ....Threats to the water quality and ecosystem of Coffin Bay, South Australia. Coffin Bay (South Australia) is experiencing worsening environmental conditions despite its major economic and ecological importance. Research is needed to understand the cause of this decline, particularly in light of a recent bacterial outbreak that impacted the aquaculture industry. This multidisciplinary project aims to deliver world-leading scientific advice based on novel field techniques and innovative models of this complex inverse estuary system and its surrounding catchment. The new understanding of the sources, fluxes and fate of nutrients within the bay and the surrounding catchment, arising from this project, is expected to benefit management decision-making and establish a new standard in estuarine water quality investigation.Read moreRead less
Hydrogeological drivers and fate of spring flow in a semi-arid setting. In arid and semi-arid climates, aquatic and terrestrial ecosystems often rely on groundwater springs. Spring hydrology depends on complex relationships between underlying aquifers and surface conditions, leading to high uncertainties in understanding aquifer-spring-wetland hydrology, which is critical for spring ecosystem protection and to inform management of relevant groundwater-affecting activities. This project will appl ....Hydrogeological drivers and fate of spring flow in a semi-arid setting. In arid and semi-arid climates, aquatic and terrestrial ecosystems often rely on groundwater springs. Spring hydrology depends on complex relationships between underlying aquifers and surface conditions, leading to high uncertainties in understanding aquifer-spring-wetland hydrology, which is critical for spring ecosystem protection and to inform management of relevant groundwater-affecting activities. This project will apply novel hydrogeophysical and hydrochemical methods, and computer modelling, to investigate the source aquifer of, and fate of discharge from the Doongmabulla Springs Complex (DSC), located in an area of future development. Project results will inform spring vulnerability to development pressures and climate effects.Read moreRead less
Cross-cultural management of freshwater on resource-constrained islands. This project aims to develop a methodology for community-led adaptive water management on resource-constrained islands and will involve Indigenous communities in the development of predictive groundwater models. The project plans to apply three-dimensional participatory mapping, a stakeholder engagement process led and owned by the local communities, on Milingimbi Island in the Northern Territory. The extension of the parti ....Cross-cultural management of freshwater on resource-constrained islands. This project aims to develop a methodology for community-led adaptive water management on resource-constrained islands and will involve Indigenous communities in the development of predictive groundwater models. The project plans to apply three-dimensional participatory mapping, a stakeholder engagement process led and owned by the local communities, on Milingimbi Island in the Northern Territory. The extension of the participatory mapping with a subsurface component will then support the conceptualisation and development of a numerical model of the island's groundwater system. The predictive model and community engagement processes are expected to provide a more robust methodology for evaluating future water management plans. The project outcomes will contribute to solving water supply problems in remote communities in Australia, and overseas.Read moreRead less