Understanding interglacial diversity. This project intends to improve our understanding of interglacial processes. Interglacials, the relatively brief warm intervals of Quaternary ice-age cycles, have varied significantly over the last 800 000 years in terms of their duration, timing, intensity and complexity. The reason for such diversity has eluded palaeoclimatologists for decades. This is because of the difficulty of dating marine and ice records, which best preserve interglacial histories. T ....Understanding interglacial diversity. This project intends to improve our understanding of interglacial processes. Interglacials, the relatively brief warm intervals of Quaternary ice-age cycles, have varied significantly over the last 800 000 years in terms of their duration, timing, intensity and complexity. The reason for such diversity has eluded palaeoclimatologists for decades. This is because of the difficulty of dating marine and ice records, which best preserve interglacial histories. The projects plans to compile precisely dated time series of past interglacials that can be linked directly to these records, allowing robust comparisons between interglacial properties and changes in Earth's astronomical parameters. This would advance palaeoclimate theory and provide a new perspective on the future evolution of the climate system.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE120103033
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
The wet and dry of tropical Australia: past, present and future. This project investigates rivers in the tropical 'Top End' of Australia and how flooding and long-term flow have changed over the recent geologic past. Such knowledge adds important components to our understanding of past climate in Australia, and is crucial in assessing the impacts of future global change on the continent's water resources.
Equator to Pole: Reconstructing tropical and Antarctic climate variability over the last millennium and their impacts on southern Australian rainfall. Water resource management is one of the greatest challenges facing sustainable agriculture and urban populations across southern Australia. Key players driving catastrophic droughts in southern Australia are the tropical Indian Ocean Dipole and polar Southern Annual Mode climate systems, which affect moisture availability and transport pathways. T ....Equator to Pole: Reconstructing tropical and Antarctic climate variability over the last millennium and their impacts on southern Australian rainfall. Water resource management is one of the greatest challenges facing sustainable agriculture and urban populations across southern Australia. Key players driving catastrophic droughts in southern Australia are the tropical Indian Ocean Dipole and polar Southern Annual Mode climate systems, which affect moisture availability and transport pathways. This collaborative research project draws together a uniquely-skilled research team to develop targeted coral, ice and cave reconstructions of these climate systems and their impacts on Australian rainfall through the last millennium. This fundamental new knowledge of the drivers of Australian rainfall variability will aid improved predictability of future changes in our valuable water resources. Read moreRead less
Single-sample unmixing with machine learning: a rock magnetic frontier. Magnetic rock-forming minerals can record important information about Earth’s magnetic field and climatic changes. In rock magnetism, we seek to quantify magnetic property variations in geological materials. Existing quantification methods are limited and provide bulk characterisation of all magnetic particles in a material rather than diagnostic information concerning individual mineral components. This Project aims to deve ....Single-sample unmixing with machine learning: a rock magnetic frontier. Magnetic rock-forming minerals can record important information about Earth’s magnetic field and climatic changes. In rock magnetism, we seek to quantify magnetic property variations in geological materials. Existing quantification methods are limited and provide bulk characterisation of all magnetic particles in a material rather than diagnostic information concerning individual mineral components. This Project aims to develop a machine-learning framework to “unmix” and quantify each magnetic mineral component in single natural samples, and will unlock a new quantitative era in rock magnetism. It is expected to have impact beyond Earth science by enabling magnetic characterisation in physics, materials science, and industry.Read moreRead less
The last glaciation maximum climate conundrum and environmental responses of the Australian continent to altered climate states. This project will show how climate systems in south east Australia responded to large scale global change the last time this happened, which was about 21,000 years ago. By determining the climate response in Australia to this change, this project will help predict future response in rainfall and temperature to human-induced and natural climate change.
When the ice melts: a new perspective on the causes of Quaternary glacial terminations. The project will assemble an unprecedented palaeoclimate time series extending back to 1.2 million years ago that will allow marine and ice core records to be placed onto an absolute time scale. This will allow testing of fundamental hypotheses on why the Earth's climate shifts from glacial to interglacial states, with flow-on effects to climate models.
Global climate change and coastal landscape evolution in southern Australia. This project aims to reconstruct environmental changes that occurred in southern Australia during a geologically recent time interval termed the Early-Middle Pleistocene Transition (1.2 million to 700 thousand years ago) and an interglacial period some 400,000 years ago. Using innovative geochronological, geochemical and modelling techniques, the environmental changes that shaped modern Australian coastal landscapes, in ....Global climate change and coastal landscape evolution in southern Australia. This project aims to reconstruct environmental changes that occurred in southern Australia during a geologically recent time interval termed the Early-Middle Pleistocene Transition (1.2 million to 700 thousand years ago) and an interglacial period some 400,000 years ago. Using innovative geochronological, geochemical and modelling techniques, the environmental changes that shaped modern Australian coastal landscapes, including the intensification of aridity and their timing will be examined. The project will yield new knowledge about the sensitivity of landscapes to current and ongoing environmental changes and derive explanatory models of the rates and characteristics of landscape response to assist future coastal environmental management.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100220
Funder
Australian Research Council
Funding Amount
$150,000.00
Summary
Sonic drilling to provide contamination-free core sampling of rock and unconsolidated sediment. Australia is the world's driest inhabited continent. Understanding environmental and climatic changes, from the temperate period when humans arrived about 50,000 years ago to the present state of widespread aridity, is crucial for modelling future climate change. This facility will provide new generation drilling equipment which is necessary to obtain accurate records.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100094
Funder
Australian Research Council
Funding Amount
$110,000.00
Summary
Single-grain optically-stimulated luminescence and dosimetry instruments to service the Sydney metropolitan and greater New South Wales region. This equipment will support projects that address significant environmental challenges in Australia, such as climate change and variability, coastal management and sustainable river and water management, and that assess the impacts and consequences of these challenges for populations living in environmentally sensitive areas. These projects will build on ....Single-grain optically-stimulated luminescence and dosimetry instruments to service the Sydney metropolitan and greater New South Wales region. This equipment will support projects that address significant environmental challenges in Australia, such as climate change and variability, coastal management and sustainable river and water management, and that assess the impacts and consequences of these challenges for populations living in environmentally sensitive areas. These projects will build on established collaborations in Australia, Antarctica and the south-west Pacific and encourage new collaborations with south-east Asian, Egyptian and Argentinean researchers, which will promote Australian research on a world stage. The use of this equipment will also pioneer new dating methodologies to further enhance Australia's place at the forefront of geochronology.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE120100218
Funder
Australian Research Council
Funding Amount
$254,078.00
Summary
A world-class rock magnetic facility to support Australian palaeomagnetic and environmental research. Magnetic properties of rocks and environmental particles provide information about a vast range of geological and environmental processes. We propose to develop a facility that will enable detection and interpretation of these magnetic signals to aid understanding of climate change, mineral exploration, and the geological development of Australia.