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
Observed streamflow generation changes: better understanding and modelling. This Project aims to investigate drivers and triggers of variable streamflow response during and after drought and develop modelling strategies and model structures more robust to changing streamflow response. In many catchments during the Millennium Drought, streamflow generation was less than expected and hydrologic models performed poorly. After the drought, streamflow generation is yet to recover in some catchments. ....Observed streamflow generation changes: better understanding and modelling. This Project aims to investigate drivers and triggers of variable streamflow response during and after drought and develop modelling strategies and model structures more robust to changing streamflow response. In many catchments during the Millennium Drought, streamflow generation was less than expected and hydrologic models performed poorly. After the drought, streamflow generation is yet to recover in some catchments. This Project expects to generate new knowledge about variable streamflow response to drought and develop strategies and models to robustly simulate runoff during and after changed conditions, which should provide significant benefit via better understanding and modelling of streamflow response under changing conditions.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
Ecohydrological forecasting: the pivotal role of root-zone soil moisture. This project aims to overcome the scientific and technological challenges preventing soil water and vegetation forecasting at useful land management scales (eg. 25 m). The significance is in enabling an unprecedented hyperresolution modelling capability for Australia through the integration of new ecohydrological theory with a range of satellite observations. Outcomes include more accurate, spatially-detailed information o ....Ecohydrological forecasting: the pivotal role of root-zone soil moisture. This project aims to overcome the scientific and technological challenges preventing soil water and vegetation forecasting at useful land management scales (eg. 25 m). The significance is in enabling an unprecedented hyperresolution modelling capability for Australia through the integration of new ecohydrological theory with a range of satellite observations. Outcomes include more accurate, spatially-detailed information of current soil water amounts, and reliable forecasts of vegetation condition several months into the future. This will greatly enhance timely decision making and forward planning by farmers, fire agencies, and other land and water managers, with corresponding increases in productivity, sustainability and community safety.Read moreRead less
Delivering robust hydrological predictions for Australia’s water challenges. This project aims to build a virtual hydrological laboratory to identify the best hydrological models that maximise predictive performance in a range of catchments, accounting for their dominant hydrological processes and data availability. New process-informed hydrological model structures will be developed using this virtual laboratory to embody our best understanding of hydrological processes and data from real catch ....Delivering robust hydrological predictions for Australia’s water challenges. This project aims to build a virtual hydrological laboratory to identify the best hydrological models that maximise predictive performance in a range of catchments, accounting for their dominant hydrological processes and data availability. New process-informed hydrological model structures will be developed using this virtual laboratory to embody our best understanding of hydrological processes and data from real catchments. The expected outcomes include major improvements in hydrological predictions for Australian catchments. This project will provide major benefits to irrigators, water authorities and engineers, who rely on hydrological predictions for sustainable water management in the highly-variable, semi-arid Australian climate.Read moreRead less
Australia's variable rainfall - how dry or wet can it really get? Australia’s rainfall is extremely variable, which means existing weather records are too short to calculate the true risk posed by droughts and floods. This project aims to quantify how naturally variable the rainfall coming from the Indo-Pacific mid-latitudes is, allowing recent rainfall extremes and future projections to be assessed in a long-term context. This project expects to produce new estimates of atmospheric moisture bud ....Australia's variable rainfall - how dry or wet can it really get? Australia’s rainfall is extremely variable, which means existing weather records are too short to calculate the true risk posed by droughts and floods. This project aims to quantify how naturally variable the rainfall coming from the Indo-Pacific mid-latitudes is, allowing recent rainfall extremes and future projections to be assessed in a long-term context. This project expects to produce new estimates of atmospheric moisture budgets between Australia and Antarctica based on a novel, 1000-year length reconstruction of moisture-bearing southern Indian Ocean storms. This new information is critically needed by water managers so that they can properly calculate (and ultimately prepare for) the worst of Australia’s rainfall-related risks.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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Discovery Early Career Researcher Award - Grant ID: DE220100852
Funder
Australian Research Council
Funding Amount
$455,766.00
Summary
Breathing streams: integrating aquatic emissions into carbon budgets. This project aims to determine the amount of greenhouse gases emitted by small streams across the Australian tropics, a potential hotspot for emissions of carbon dioxide and methane. The project expects to investigate the controls on gaseous emissions from stream to regional scales using a novel combination of gas tracer experiments, remote sensing techniques and machine learning algorithms. Expected outcomes include the devel ....Breathing streams: integrating aquatic emissions into carbon budgets. This project aims to determine the amount of greenhouse gases emitted by small streams across the Australian tropics, a potential hotspot for emissions of carbon dioxide and methane. The project expects to investigate the controls on gaseous emissions from stream to regional scales using a novel combination of gas tracer experiments, remote sensing techniques and machine learning algorithms. Expected outcomes include the development of a predictive model of gas exchange and the first estimate of gaseous emissions from the Australian tropics. This should provide significant benefits such as reducing uncertainties on the national carbon budget and avoiding misalignment of greenhouse gas abatement policies.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
Will rivers be smaller when the climate is hotter? This project aims to investigate how large rivers are affected by changing atmospheric temperature. Large inland rivers are the main source of water supporting ecological functions, economies and societies. This project will quantify the size and age of abandoned river channels in the Murray-Darling Basin (MDB) of southeast Australia and the Atuel/Diamante basin of Argentina. We will use this to reconstruct a history of changes in river discharg ....Will rivers be smaller when the climate is hotter? This project aims to investigate how large rivers are affected by changing atmospheric temperature. Large inland rivers are the main source of water supporting ecological functions, economies and societies. This project will quantify the size and age of abandoned river channels in the Murray-Darling Basin (MDB) of southeast Australia and the Atuel/Diamante basin of Argentina. We will use this to reconstruct a history of changes in river discharge and relate this to climate. Novel climate and hydrological modelling will then be used to simulate the impact of temperature changes on catchment runoff and river discharge. Such information is vital for decision-making, planning and water resource allocation in the MDB and elsewhere. Read moreRead less