Dynamics of Suppressed Mixing Regimes in Australian Rivers. This study aims to further the fundamental science of turbulent mixing in the context of flow in Australian rivers. The focus is on prolonged low flow conditions which when coupled with warm surface temperatures cause the water column to become thermally stratified which then suppresses turbulent mixing. The extreme scale of the river systems has made investigating the true dynamics of the strongly stratified mixing regimes particularly ....Dynamics of Suppressed Mixing Regimes in Australian Rivers. This study aims to further the fundamental science of turbulent mixing in the context of flow in Australian rivers. The focus is on prolonged low flow conditions which when coupled with warm surface temperatures cause the water column to become thermally stratified which then suppresses turbulent mixing. The extreme scale of the river systems has made investigating the true dynamics of the strongly stratified mixing regimes particularly challenging. By taking world first in-situ measurements of turbulent mixing and undertaking high resolution numerical simulations this study will provide definitive data which will allow correct characterization of the mixing regimes and how they are associated with river flow conditions.Read moreRead less
Australian Laureate Fellowships - Grant ID: FL190100164
Funder
Australian Research Council
Funding Amount
$3,336,000.00
Summary
Water Justice: Indigenous Water Valuation and Resilient Decision-making . The aim is to value water and support resilient decision-making for water justice. Its significance is to provide missing socio-cultural-environmental values of First Peoples water, the absence of which means Indigenous demands for water justice are frequently ignored. Project outcomes will empower First Peoples and support resilient and evidence-based decision-making. The key benefit is a sustainable Australia through: fi ....Water Justice: Indigenous Water Valuation and Resilient Decision-making . The aim is to value water and support resilient decision-making for water justice. Its significance is to provide missing socio-cultural-environmental values of First Peoples water, the absence of which means Indigenous demands for water justice are frequently ignored. Project outcomes will empower First Peoples and support resilient and evidence-based decision-making. The key benefit is a sustainable Australia through: first-ever conjoint socio-cultural values of First Peoples’ water; transformative decision-making to account for Indigenous values and risks (such as droughts); and a Water Justice Hub to create a generation of scholars in integrated water valuation, resilient decision-making, and Traditional Water Knowledge. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE180101503
Funder
Australian Research Council
Funding Amount
$357,996.00
Summary
Using improved markets to reduce over-extraction of groundwater. This project aims to investigate the key aspects needed for a successful groundwater market, including extraction limits, innovative trading systems and reasonable transaction costs. The outcomes of the project can contribute to environmental benefits that minimise short-term financial losses to irrigators. The project also expects to enhance the capacity of water agencies to implement cap and trade systems that can reduce over-ext ....Using improved markets to reduce over-extraction of groundwater. This project aims to investigate the key aspects needed for a successful groundwater market, including extraction limits, innovative trading systems and reasonable transaction costs. The outcomes of the project can contribute to environmental benefits that minimise short-term financial losses to irrigators. The project also expects to enhance the capacity of water agencies to implement cap and trade systems that can reduce over-extraction.Read moreRead less
East Australian climate extremes through the Holocene. The project aims to document climate variability in eastern Australia over the Holocene, the last 11,500 years. It seeks to develop Australia’s two highest-resolution Holocene climate records using novel techniques to infer past rainfall, temperature and evaporation. The project will combine the expertise of international drought and climate specialists with novel techniques developed by the Australian investigators to derive an unparalleled ....East Australian climate extremes through the Holocene. The project aims to document climate variability in eastern Australia over the Holocene, the last 11,500 years. It seeks to develop Australia’s two highest-resolution Holocene climate records using novel techniques to infer past rainfall, temperature and evaporation. The project will combine the expertise of international drought and climate specialists with novel techniques developed by the Australian investigators to derive an unparalleled record of drought duration, frequency and intensity. In particular, the project aims to determine the frequency, duration and causes of mega-droughts in eastern Australia, of which little is known. Expected project outcomes include improved decision making capacity for natural resource management, and planning.Read moreRead less
3D tomographic reconstruction of rainfall using satellite signals. This project aims to use the microwave communication links of low earth and/or medium earth orbit satellites to achieve three dimensional tomographic reconstruction of rainfall. The path loss of microwave signals due to rainfall, known as rain attenuation can be used to measure rain. Similar to using X-ray to carry out human-body CT scans. With the aid of advanced signal processing techniques, the proposed method will achieve 3D ....3D tomographic reconstruction of rainfall using satellite signals. This project aims to use the microwave communication links of low earth and/or medium earth orbit satellites to achieve three dimensional tomographic reconstruction of rainfall. The path loss of microwave signals due to rainfall, known as rain attenuation can be used to measure rain. Similar to using X-ray to carry out human-body CT scans. With the aid of advanced signal processing techniques, the proposed method will achieve 3D measurements with resolution and coverage unachievable before, paving the way for innovative water relevant applications such as hydrology and agriculture, and new findings in atmospheric research.Read moreRead less
A study of China’s south to north water transfer project. This project aims to investigate the motives, processes, and socio-political and hydrological consequences of the South-North Water Transfer (SNWT) in China, the world’s largest inter-basin water network. It connects four major river basins, six provinces, three megacities and over 700 million people. This project will analyse the SNWT's governance regime; its effects on local and regional flows of water, money, people, pollutants, produc ....A study of China’s south to north water transfer project. This project aims to investigate the motives, processes, and socio-political and hydrological consequences of the South-North Water Transfer (SNWT) in China, the world’s largest inter-basin water network. It connects four major river basins, six provinces, three megacities and over 700 million people. This project will analyse the SNWT's governance regime; its effects on local and regional flows of water, money, people, pollutants, production and political authority; and the interactions between these systemic and local changes. This project expects to produce knowledge about the politics of vast technologies, and the management of inter-basin water schemes in Australia and globally.Read moreRead less
Effect of faults and barriers on groundwater flow and solute transport. This project will address the role of faults and dykes on groundwater flow and solute transport. Faults and dykes can act as barriers to groundwater flow, yet faults can also be conduits for flow through otherwise impermeable layers. Understanding their role is critical to assessing the impacts of mining, unconventional gas and water resource developments. This project expects to develop new methods to quantify groundwater f ....Effect of faults and barriers on groundwater flow and solute transport. This project will address the role of faults and dykes on groundwater flow and solute transport. Faults and dykes can act as barriers to groundwater flow, yet faults can also be conduits for flow through otherwise impermeable layers. Understanding their role is critical to assessing the impacts of mining, unconventional gas and water resource developments. This project expects to develop new methods to quantify groundwater flow through and along faults and dykes by combining geological, hydraulic and geochemical approaches with detailed 3D numerical models. The expected outcome will be an improved understanding of the role of faults and barriers in subsurface hydrology, and an improved ability to model complex groundwater systems.Read moreRead less
Special Research Initiatives - Grant ID: SR200200186
Funder
Australian Research Council
Funding Amount
$230,583.00
Summary
Water resources management: past transformations for future sustainability. This project aims to develop a more systemic understanding of how culture, technology and institutional regulations have together transformed water resources management in Australia since the 1850s. Water resources in Australia have suffered multiple environmental and socio-economic crises. This project will identify the cultural and technological factors that have historically influenced allocations and access to water ....Water resources management: past transformations for future sustainability. This project aims to develop a more systemic understanding of how culture, technology and institutional regulations have together transformed water resources management in Australia since the 1850s. Water resources in Australia have suffered multiple environmental and socio-economic crises. This project will identify the cultural and technological factors that have historically influenced allocations and access to water resources for economic development, and the institutional regulations needed for tackling contemporary water crises. A deeper understanding of how public attitudes, institutions and socio-economic drivers redefined water resources management will help shape Australia’s capacity to prepare for a sustainable future. Read moreRead less
Vulnerabilities for environmental water outcomes in a changing climate. This project aims to assess the vulnerability of freshwater ecosystems to extended droughts in a variable and changing climate. Governments around the world are investing in the restoration of regulated river systems with environmental water. However, the risks of climate change for environmental water management are seldom considered. This project will model the change in environmental and consumptive water use during exten ....Vulnerabilities for environmental water outcomes in a changing climate. This project aims to assess the vulnerability of freshwater ecosystems to extended droughts in a variable and changing climate. Governments around the world are investing in the restoration of regulated river systems with environmental water. However, the risks of climate change for environmental water management are seldom considered. This project will model the change in environmental and consumptive water use during extended dry periods, and couple this to models of ecological dynamics and failure thresholds. This will improve the success of Australia’s major environmental water programs in sustaining benefits through future multi-year droughts.Read moreRead less
Tracking flood waters over Australia using space gravity data. This project aims to assess the utility of near-real-time data from the currently operating space gravity satellite mission to quantify and track flood waters in Australia. Through analysis of the satellite data and fusion of observed signals with rainfall, river flows and conventional hydrological modelling, it expects to create new knowledge of soil moisture and movement of flood waters. Expected outcomes include a capability to im ....Tracking flood waters over Australia using space gravity data. This project aims to assess the utility of near-real-time data from the currently operating space gravity satellite mission to quantify and track flood waters in Australia. Through analysis of the satellite data and fusion of observed signals with rainfall, river flows and conventional hydrological modelling, it expects to create new knowledge of soil moisture and movement of flood waters. Expected outcomes include a capability to improve hydrological models by including the information of water signals obtained from the near-real-time observations. This should provide significant benefits such as more accurate land saturation maps and better predictions of runoff and flood risk.Read moreRead less