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Hydrological changes in Australia and the South Pacific. This project plans to use stalagmites from the South–West Pacific to generate continuous rainfall records for the last 2000 years. Stalagmites contain uncorrupted data that are not available in other archives, and provide unparalleled accurate chronologies. The spatial and temporal variations of the data may highlight the interplay of climate drivers, such as El Niño Southern Oscillation, and how they change the distribution of rainfall in ....Hydrological changes in Australia and the South Pacific. This project plans to use stalagmites from the South–West Pacific to generate continuous rainfall records for the last 2000 years. Stalagmites contain uncorrupted data that are not available in other archives, and provide unparalleled accurate chronologies. The spatial and temporal variations of the data may highlight the interplay of climate drivers, such as El Niño Southern Oscillation, and how they change the distribution of rainfall in the Pacific. This knowledge would increase our scientific understanding and enable better predictions of the recurrence of droughts and wet events in Australia.Read moreRead less
Reconstructing changes in atmospheric circulation over the mid-latitudes of the Southern Hemisphere during the past 3000 years. The climate of the mid-latitudes of the southern hemisphere is of global significance and yet past changes have proved difficult to reconstruct due to the dearth of records. Working across the Southern Ocean region using tree rings, lake sediments and ice cores, the project will produce the first comprehensive reconstruction spanning the last 3000 years.
Australian Laureate Fellowships - Grant ID: FL100100195
Funder
Australian Research Council
Funding Amount
$2,981,452.00
Summary
Tipping points in Records of Extreme Events in Australasia: Using the Past to Understand and Plan for Abrupt Future Climate Change. This project will generate the fundamental science outputs required to extend historical records of change and understand the complex linkages between Australian and global atmospheric, terrestrial and marine processes in the climate system, thereby assisting in: (i) identifying the mechanisms of past and future climate variability; (ii) developing and validating me ....Tipping points in Records of Extreme Events in Australasia: Using the Past to Understand and Plan for Abrupt Future Climate Change. This project will generate the fundamental science outputs required to extend historical records of change and understand the complex linkages between Australian and global atmospheric, terrestrial and marine processes in the climate system, thereby assisting in: (i) identifying the mechanisms of past and future climate variability; (ii) developing and validating methodologies for improved climate reconstruction and robust chronological frameworks; (iii) predicting the response of Australian ecosystems to future climate change; and (iv) communicating the research outputs to the general public and state, national and international decision makers, helping scientific understanding and aiding resource management.Read moreRead less
Integrating past ice sheet dynamics with palaeoclimate in the Weddell Sea sector to evaluate current and future change in Antarctica. This project will extend historical records of change and understand the complex linkages between Antarctic climate and ice sheet dynamics, thereby assisting in: (i) identifying the mechanisms of past and future ice sheet stability, and (ii) communicating the research outputs to the general public, helping scientific understanding.
Palaeoclimate reconstructions from the isotopic signatures of fossilised leaf waxes. This project develops a method for using the chemical signature of fossilised leaf waxes to reconstruct hydrologic change in south-eastern Australia during the Holocene (last 10,000 years) and Eocene (56-34 million years ago). Understanding climate in the geologic past is essential for testing models and projecting future climate with rising carbon dioxide.
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
Understanding the drivers and impacts of long-term Antarctic ice sheet change. This project will extend historical records of change and develop an understanding of the complex linkages between the climate and Antarctic ice sheet dynamics. The results will thereby assist in identifying the mechanisms of the past and future ice sheet stability and be communicated to the general public by enhancing scientific understanding.
Past trends and future risk of climate extremes in southern Australia. Prolonged droughts and periods of heightened flood and fire risk present a major challenge for Australia’s society and economy. This proposal aims to better resolve the causes and risks of decadal climate extremes through a suite of high quality records of temperature, rainfall/evaporation and humidity in southern Australia over 2000 years. Novel geochemical analyses will be developed and applied to lake sediments – method de ....Past trends and future risk of climate extremes in southern Australia. Prolonged droughts and periods of heightened flood and fire risk present a major challenge for Australia’s society and economy. This proposal aims to better resolve the causes and risks of decadal climate extremes through a suite of high quality records of temperature, rainfall/evaporation and humidity in southern Australia over 2000 years. Novel geochemical analyses will be developed and applied to lake sediments – method development which is likely to benefit climate, minerals and biosecurity research. New knowledge of mechanisms underlying climate variability is expected to benefit fundamental research, while future-facing models will allow land managers and policy makers to better anticipate extraordinary climate events.Read moreRead less
Fire and rain: Drivers of deep-time ecosystem assembly in Australia. This project aims to investigate the influence of bushfires and shifting rainfall patterns on the development of Australia’s dominant ecosystems. By combining a range of novel geochemical, isotopic and palaeontological techniques, this research seeks to reveal the causes and consequences of Australia’s transformation from a forested to mainly open landscape of grassland, shrubland and savannah. The expected outcome is detailed ....Fire and rain: Drivers of deep-time ecosystem assembly in Australia. This project aims to investigate the influence of bushfires and shifting rainfall patterns on the development of Australia’s dominant ecosystems. By combining a range of novel geochemical, isotopic and palaeontological techniques, this research seeks to reveal the causes and consequences of Australia’s transformation from a forested to mainly open landscape of grassland, shrubland and savannah. The expected outcome is detailed knowledge of how changes in fire and rain shaped the ecology and evolution of plants and animals. This knowledge is key to understanding how Australian ecosystems function and to protecting their cultural, economic and environmental values, especially as climate and fire regimes continue to change into the future.Read moreRead less
Back to the Future: Interglacial Warming and the West Antarctic Ice Sheet . The Antarctic is highly-sensitive to abrupt changes caused by the passing of tipping points within the climate system. Crucially, the instrumental record is too short to resolve major uncertainties surrounding future warming. The Last Interglacial (125,000 yrs ago) was 2°C warmer than today and experienced 6-11 m higher global sea levels. The role of Antarctica is vital for constraining sea-level projections. This Austra ....Back to the Future: Interglacial Warming and the West Antarctic Ice Sheet . The Antarctic is highly-sensitive to abrupt changes caused by the passing of tipping points within the climate system. Crucially, the instrumental record is too short to resolve major uncertainties surrounding future warming. The Last Interglacial (125,000 yrs ago) was 2°C warmer than today and experienced 6-11 m higher global sea levels. The role of Antarctica is vital for constraining sea-level projections. This Australian-led international project aims to determine the mechanisms and impacts of past interglacial Antarctic warming up to 2°C (relative to pre-industrial). Innovative techniques integrating horizontal ice cores and high resolution marine records will help identify polar tipping points and better plan for impacts in Australia.Read moreRead less