Efffective Management of Water Resources in Semiarid Regions Using Remote Sensing. Due to the vast expense and difficulties to access many areas from the ground, there is currently no effective system for assessing and managing water resources over many large semi-arid regions of the world. Through the study of two complementary Basins - The Murray and Lake Chad Basins - we propose a new approach based on satellite imagery to provide regular and detailed information on the state of our water res ....Efffective Management of Water Resources in Semiarid Regions Using Remote Sensing. Due to the vast expense and difficulties to access many areas from the ground, there is currently no effective system for assessing and managing water resources over many large semi-arid regions of the world. Through the study of two complementary Basins - The Murray and Lake Chad Basins - we propose a new approach based on satellite imagery to provide regular and detailed information on the state of our water resources in these areas. These innovative techniques will yield new information on critical water issues: water availability, salinity, groundwater/surface water interactions, climate and land use change impact. This project provides the basis for sustainable water use in regional Australia.Read moreRead less
Satellite based monitoring system of lakes and wetlands water quality. Effectively managing water resources within Australia is critical for social and economic growth. The large-scale of Australian catchments means that many lakes are unmonitored due to time and costs required for on-ground programs. This research project directly addresses the lack of observations. Information on water quality from satellite, on-ground, and modeling investigations are integrated to develop an operational moni ....Satellite based monitoring system of lakes and wetlands water quality. Effectively managing water resources within Australia is critical for social and economic growth. The large-scale of Australian catchments means that many lakes are unmonitored due to time and costs required for on-ground programs. This research project directly addresses the lack of observations. Information on water quality from satellite, on-ground, and modeling investigations are integrated to develop an operational monitoring system for surface water quality. Results are used to model the sensitivity of the water quality to changes in climate and land use. The monitoring system can be used to protect catchment assets by risk assessment and provide insights into management scenarios.Read moreRead less
Quantifying the pathways and fluxes of iron to Moreton Bay. Recent investigations into the blooms of Lyngbya majuscula in Moreton Bay have identified dissolved iron, phosphorus and humic substances as important triggers of blooms. These chemicals are most likely sourced from land activities and transported by surface and ground water into the bay. Quantification of the groundwater discharge and associated chemical input to the bay has been identified by the Lyngbya Scientific Panel and the Lyng ....Quantifying the pathways and fluxes of iron to Moreton Bay. Recent investigations into the blooms of Lyngbya majuscula in Moreton Bay have identified dissolved iron, phosphorus and humic substances as important triggers of blooms. These chemicals are most likely sourced from land activities and transported by surface and ground water into the bay. Quantification of the groundwater discharge and associated chemical input to the bay has been identified by the Lyngbya Scientific Panel and the Lyngbya Management Steering Committee as a key issue for future Lyngbya scientific investigations. This project aims to investigate and quantify both surface and subsurface pathways and fluxes of iron to the bay.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0883113
Funder
Australian Research Council
Funding Amount
$250,000.00
Summary
A stable-isotope mass spectrometer for novel determinations of past temperatures. Much of the Australian landscape is subject to a dry and evaporative climate, making it very difficult to use conventional geochemical techniques to estimate past temperatures, even on short timescales of tens to hundreds of years. The application of a new isotopic technique to preserved carbonate minerals (soil carbonate, shells in rivers, lakes and the ocean) avoids the difficulty of this variable evaporation, an ....A stable-isotope mass spectrometer for novel determinations of past temperatures. Much of the Australian landscape is subject to a dry and evaporative climate, making it very difficult to use conventional geochemical techniques to estimate past temperatures, even on short timescales of tens to hundreds of years. The application of a new isotopic technique to preserved carbonate minerals (soil carbonate, shells in rivers, lakes and the ocean) avoids the difficulty of this variable evaporation, and directly measures past temperatures. This will have a profound effect on our understanding of environmental changes on both short and long time scales, and permit a better understanding of the hydrological balances within the landscape.Read moreRead less
Effectiveness of deep natural clay, compacted clay and geomembranes in limiting seepage from coal seam gas production water evaporation ponds. Australia's coal seam gas reserves exceed those of the Moomba and Bass Strait gas fields combined. Queensland's coal seam gas production already accounts for more than 50% of the state's natural gas supply, and continues to grow rapidly. The production of coal seam gas will escalate in coming years, particularly to provide a clean fuel for electricity g ....Effectiveness of deep natural clay, compacted clay and geomembranes in limiting seepage from coal seam gas production water evaporation ponds. Australia's coal seam gas reserves exceed those of the Moomba and Bass Strait gas fields combined. Queensland's coal seam gas production already accounts for more than 50% of the state's natural gas supply, and continues to grow rapidly. The production of coal seam gas will escalate in coming years, particularly to provide a clean fuel for electricity generation and feed stock for liquefied natural gas to supply rapidly growing markets in Asia. As gas production increases, so too does the generation of saline water. This research will ensure that the evaporation of the saline water does not impact the underlying Great Artesian Basin, so that coal seam gas production may continue and grow.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0560828
Funder
Australian Research Council
Funding Amount
$363,288.00
Summary
Hydrodynamics and water quality field research facility. Understanding the fate of sediments and contaminants transported through catchments and the marine environment and their impacts on aquatic and marine ecosystems requires detailed hydrodynamic understanding at a range of scales. By establishing a state of the art research facility, JCU and GU together have a unique opportunity to provide hydrodynamic and water quality research which will support research priority areas of both institutions ....Hydrodynamics and water quality field research facility. Understanding the fate of sediments and contaminants transported through catchments and the marine environment and their impacts on aquatic and marine ecosystems requires detailed hydrodynamic understanding at a range of scales. By establishing a state of the art research facility, JCU and GU together have a unique opportunity to provide hydrodynamic and water quality research which will support research priority areas of both institutions, and advance the understanding of Australia's important tropical and subtropical ecosystems. Currently, excellent researchers and novel collaborations between and within James Cook University and Griffith University, are restricted by the lack of essential modern equipment.Read moreRead less
Turbulence and energy dissipation in stepped spillways and urban drainage systems. The economical sustainability of Australia's water resources relies upon an efficient use of its structures. Present water resources are diminishing because of poor engineering design. This issue is critical in both rural and urban Australia. The economical expansions of existing water supplies can be achieved by refurbishing reservoirs, water supply networks and urban water systems. The expertise derived from the ....Turbulence and energy dissipation in stepped spillways and urban drainage systems. The economical sustainability of Australia's water resources relies upon an efficient use of its structures. Present water resources are diminishing because of poor engineering design. This issue is critical in both rural and urban Australia. The economical expansions of existing water supplies can be achieved by refurbishing reservoirs, water supply networks and urban water systems. The expertise derived from the project will spearhead applications in a range of industries dealing with civil and environmental systems.Read moreRead less
Urban flood modelling at speed and scale. Frequent floods in urban areas cause damages comparable to extreme floods. This is likely to intensify with future urbanisation and climate change. Although Water Sensitive Urban Design (WSUD) offers sustainable urban drainage solutions, there are no models that can select an optimal WSUD system to deliver on a set urban flood mitigation target. The project aims to develop a new generation of fast urban flood models and the-first-of-its-kind WSUD plannin ....Urban flood modelling at speed and scale. Frequent floods in urban areas cause damages comparable to extreme floods. This is likely to intensify with future urbanisation and climate change. Although Water Sensitive Urban Design (WSUD) offers sustainable urban drainage solutions, there are no models that can select an optimal WSUD system to deliver on a set urban flood mitigation target. The project aims to develop a new generation of fast urban flood models and the-first-of-its-kind WSUD planning tool to support industry and governments to effectively reduce the urban flooding damages. The project outcomes are also applicable for advancing early warning systems and real-time control of floods.Read moreRead less
Water resource management of the Snowy Mountains Hydro-electric Scheme catchment and the Murray-Darling River system - a new perspective on system reliability from drought history reconstruction. The Snowy Mountains Hydro-electric Scheme assists in underwriting the production of $3 billion of agricultural products in the Murray-Darling Basin each year by providing a reliable source of water west of the Great Dividing Range, while Hydro-electric generation from the Scheme is worth annually severa ....Water resource management of the Snowy Mountains Hydro-electric Scheme catchment and the Murray-Darling River system - a new perspective on system reliability from drought history reconstruction. The Snowy Mountains Hydro-electric Scheme assists in underwriting the production of $3 billion of agricultural products in the Murray-Darling Basin each year by providing a reliable source of water west of the Great Dividing Range, while Hydro-electric generation from the Scheme is worth annually several hundred million dollars and provides 70% of the renewable energy supplied to the eastern mainland grid, thereby avoiding 5Mt of carbon dioxide emissions each year. This study will ensure the ongoing sustainable and efficient management of the Schemes water resources in response to predicted climate variability and most importantly, severe drought. Read moreRead less
Evaluating the role of buffer strips in reducing soil erosion and sediment delivery to water bodies. The role of vegetative buffer strips in reducing soil erosion and sediment delivery to water bodies is well established, but the physical processes and their interactions involved are not well understood. These hydraulic, sediment/chemical transport processes will be modelled from physical principles, recognising that the multi-size characteristics of soil plays a vital role in buffer strip effec ....Evaluating the role of buffer strips in reducing soil erosion and sediment delivery to water bodies. The role of vegetative buffer strips in reducing soil erosion and sediment delivery to water bodies is well established, but the physical processes and their interactions involved are not well understood. These hydraulic, sediment/chemical transport processes will be modelled from physical principles, recognising that the multi-size characteristics of soil plays a vital role in buffer strip effectiveness. This model will be validated using new and existing data sources, including both controlled experiments and field data obtained in Australia and overseas. A user friendly version of the model will be developed for farm managers and advisory services as a design tool.Read moreRead less