Is there a climatic tipping point for Antarctic Bottom Water formation? Antarctic Bottom Water plays an important role in global ocean circulation and climate and yet its formation is also highly sensitive to climate change. This project will analyse new seafloor, core and water samples from the understudied Cape Darnley, East Antarctica, collected on a voyage in early 2022. This new data will be used in combination with an improved high resolution regional ocean model, to understand modern and ....Is there a climatic tipping point for Antarctic Bottom Water formation? Antarctic Bottom Water plays an important role in global ocean circulation and climate and yet its formation is also highly sensitive to climate change. This project will analyse new seafloor, core and water samples from the understudied Cape Darnley, East Antarctica, collected on a voyage in early 2022. This new data will be used in combination with an improved high resolution regional ocean model, to understand modern and past Antarctic Bottom Water formation under different climate states (warmer and colder than present), to determine if there are climate tipping points for the shut down of Antarctic Bottom Water formation. The anticipated benefits include a better understanding of future climate change on this important water mass.Read moreRead less
El Niño in a changing climate: novel long-term perspectives from Pacific corals and model simulations. El Niño and La Niña events have a profound influence on Australian drought conditions and rainfall. Forecasting is hampered by short climate records, which do not capture the full range of El Niño dynamics. This project aims to generate records of unprecedented length and spatial coverage from key sites across the western and central equatorial Pacific. Five hundred years of continuous, monthly ....El Niño in a changing climate: novel long-term perspectives from Pacific corals and model simulations. El Niño and La Niña events have a profound influence on Australian drought conditions and rainfall. Forecasting is hampered by short climate records, which do not capture the full range of El Niño dynamics. This project aims to generate records of unprecedented length and spatial coverage from key sites across the western and central equatorial Pacific. Five hundred years of continuous, monthly-resolution climate data will be integrated with output from state-of-the-art climate model simulations to distil the key processes that cause El Niño to vary. This project aims to provide major advances in determining the full range of El Niño and La Niña behaviour, leading to improved forecasts of future changes, with consequences for Australia's water security.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE210100028
Funder
Australian Research Council
Funding Amount
$3,000,000.00
Summary
Australian Membership of the International Ocean Discovery Program. This proposal is for an 18-month membership of the International Ocean Discovery Program (IODP), the world’s largest collaborative research program in Earth and Ocean sciences. The Program studies the history and current activity of the Earth by conducting seagoing coring expeditions and monitoring of instrumented boreholes, using globally unique infrastructure that Australians would otherwise have no access to. Program outcomes ....Australian Membership of the International Ocean Discovery Program. This proposal is for an 18-month membership of the International Ocean Discovery Program (IODP), the world’s largest collaborative research program in Earth and Ocean sciences. The Program studies the history and current activity of the Earth by conducting seagoing coring expeditions and monitoring of instrumented boreholes, using globally unique infrastructure that Australians would otherwise have no access to. Program outcomes include understanding past global environmental change on multiple time scales, the deep biosphere, plate tectonics, formation and distribution of resources, and generation of hazards. These outcomes are paramount to Australia’s national science and research priorities, and societal and economic prosperity.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE140100047
Funder
Australian Research Council
Funding Amount
$3,600,000.00
Summary
Australian Membership of the International Ocean Discovery Program. Australian membership of the International Ocean Discovery Program: This project is for an Australian membership of the International Ocean Discovery Program. The Program will recover drill cores, situate observatories, and conduct down-hole experiments in all the world's oceans from lowest to highest latitudes to address fundamental questions about Earth's history and processes within four high-priority scientific themes: clima ....Australian Membership of the International Ocean Discovery Program. Australian membership of the International Ocean Discovery Program: This project is for an Australian membership of the International Ocean Discovery Program. The Program will recover drill cores, situate observatories, and conduct down-hole experiments in all the world's oceans from lowest to highest latitudes to address fundamental questions about Earth's history and processes within four high-priority scientific themes: climate and ocean change - reading the past and informing the future; biosphere frontiers - deep life, biodiversity, and environmental forcing of ecosystems; earth connections - deep processes and their impact on earth's surface environment; earth in motion - processes and hazards on a human time scale.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE160100067
Funder
Australian Research Council
Funding Amount
$10,000,000.00
Summary
Australian Membership of the International Ocean Discovery Program. Australian membership of the International Ocean Discovery Program:
This project is for a 5-year membership of the International Ocean Discovery Program, the world’s largest collaborative research program in earth and ocean sciences addressing international priorities. The program conducts seagoing coring expeditions and monitoring of instrumented boreholes to study the history and current activity of the Earth, recorded in sed ....Australian Membership of the International Ocean Discovery Program. Australian membership of the International Ocean Discovery Program:
This project is for a 5-year membership of the International Ocean Discovery Program, the world’s largest collaborative research program in earth and ocean sciences addressing international priorities. The program conducts seagoing coring expeditions and monitoring of instrumented boreholes to study the history and current activity of the Earth, recorded in sediments and rocks below the seafloor. The program’s aims include understanding past global environments on multiple time scales, the deep biosphere, plate tectonics, occurrence and distribution of resources, and generation of hazards. Several multinational expeditions are scheduled and planned in our marine jurisdiction and within the Australasian region. Read moreRead less
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
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
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
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100229
Funder
Australian Research Council
Funding Amount
$160,000.00
Summary
Time-of-flight mass spectrometer for analysis of complex mixtures in oils, ancient rocks, recent sediments, natural products and atmospheric aerosols. Research benefits will be:1. More effective remediation of petroleum spills through better understanding of degradation pathways, and ecotoxicological impact of spills.
2. Better understanding of the role of urban aerosols in human health impacts and climate change.
3. More effective development of finite petroleum resources by better understand ....Time-of-flight mass spectrometer for analysis of complex mixtures in oils, ancient rocks, recent sediments, natural products and atmospheric aerosols. Research benefits will be:1. More effective remediation of petroleum spills through better understanding of degradation pathways, and ecotoxicological impact of spills.
2. Better understanding of the role of urban aerosols in human health impacts and climate change.
3. More effective development of finite petroleum resources by better understanding of processes altering crude oil in the sub-surface.
4. Identification of natural products from algae, cyanobacteria, plants and mushrooms as new sources of pharmaceutical agents. 5. Improved knowledge of early evolution of life on Earth, helping maintain Australian scientists as world leaders in this field. 6. Greater understanding of the source and migration of petroleum in frontier areas.Read moreRead less
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