Eddy-resolving global ocean-sea ice modelling. Eddy-resolving global ocean-sea ice modelling. This project aims to develop a world-class global ocean-sea ice model framework through a nationwide consortium. The resulting high resolution models are expected to provide the foundation for the next decade of Australian ocean-sea ice modelling capacity. This research should lead to improved ocean and sea ice prediction, ocean reanalyses, and climate projections, enhancing Australia's capacity to pred ....Eddy-resolving global ocean-sea ice modelling. Eddy-resolving global ocean-sea ice modelling. This project aims to develop a world-class global ocean-sea ice model framework through a nationwide consortium. The resulting high resolution models are expected to provide the foundation for the next decade of Australian ocean-sea ice modelling capacity. This research should lead to improved ocean and sea ice prediction, ocean reanalyses, and climate projections, enhancing Australia's capacity to predict the ocean state on timescales of days to decades. This is expected to yield efficiencies in shipping, marine search and rescue and naval operations, and increase the accuracy of projected future changes in climate, sea level, ocean ecosystems and the cryosphere.Read moreRead less
Building Australia's next-generation ocean-sea ice model. Ocean and sea ice models are used for predicting future ocean and climate states, and for climate process research. This project aims to bring the next generation of ocean-sea ice models to Australia and configure the models for our local priorities. The ultimate goal is to create a new coupled ocean-sea ice model for Australia that includes surface waves and biogeochemistry. The model will be optimised and evaluated on Australian facilit ....Building Australia's next-generation ocean-sea ice model. Ocean and sea ice models are used for predicting future ocean and climate states, and for climate process research. This project aims to bring the next generation of ocean-sea ice models to Australia and configure the models for our local priorities. The ultimate goal is to create a new coupled ocean-sea ice model for Australia that includes surface waves and biogeochemistry. The model will be optimised and evaluated on Australian facilities, and released for community use. These developments underpin future ocean state forecasts, sea ice forecasts, wave forecasts, decadal climate prediction and climate process studies. The project will benefit search and rescue, Defence and shipping operations, and will enhance future climate projections.Read moreRead less
Deep ocean thermodynamics and climate change. This project aims to obtain new insights into the thermodynamic and transport properties of mixtures containing water, particularly at high pressures, that impact directly on our understanding of climate change processes. The project will involve the use of a polarisable potential for water which has recently been demonstrated to yield predictions of high accuracy. It will be used to model saline water mixtures containing carbon dioxide, resulting in ....Deep ocean thermodynamics and climate change. This project aims to obtain new insights into the thermodynamic and transport properties of mixtures containing water, particularly at high pressures, that impact directly on our understanding of climate change processes. The project will involve the use of a polarisable potential for water which has recently been demonstrated to yield predictions of high accuracy. It will be used to model saline water mixtures containing carbon dioxide, resulting in valuable data for thermodynamic properties of the world's oceans. These data are of crucial importance for accurate climate change predictions and as such the project will have an important impact on understanding our changing environment.Read moreRead less
Root effects on soil organic matter: a double-edged sword. This project aims to understand how plant roots build and destroy soil organic matter in grasslands and what the impacts are of drought. Soil organic matter is the largest terrestrial reservoir of nutrients for plant growth, but paradoxically, formation of new soil organic matter by plant roots also requires external nutrients. This project will address this apparent paradox by using a new root-centric framework and stable isotope techni ....Root effects on soil organic matter: a double-edged sword. This project aims to understand how plant roots build and destroy soil organic matter in grasslands and what the impacts are of drought. Soil organic matter is the largest terrestrial reservoir of nutrients for plant growth, but paradoxically, formation of new soil organic matter by plant roots also requires external nutrients. This project will address this apparent paradox by using a new root-centric framework and stable isotope techniques. The project will use state-of-the art computer models that incorporate the latest frameworks on soil organic matter interacting with plant roots. Benefits include an improved capacity to manage and predict grassland productivity and soil organic matter dynamics with greater resolution and accuracy.Read moreRead less
Drought effects on soil carbon and nitrogen cycling mediated by rhizosphere processes. There is much uncertainty about how drought caused by global warming will affect agricultural sustainability in Australia. This project will provide new knowledge about plant-soil interactions affecting carbon and nutrient cycling and will make predictions about long-term soil carbon storage and agricultural productivity in response to drought.
New insights into abrupt climate change using isotope model-data fusion. There have been several episodes in the past 60,000 years during which carbon dioxide was released into the atmosphere causing significant and rapid warming. This project aims to determine the source of the carbon responsible for these warming events. This project is significant because it will increase our understanding of the processes underlying abrupt past, and potential future changes. These processes are currently und ....New insights into abrupt climate change using isotope model-data fusion. There have been several episodes in the past 60,000 years during which carbon dioxide was released into the atmosphere causing significant and rapid warming. This project aims to determine the source of the carbon responsible for these warming events. This project is significant because it will increase our understanding of the processes underlying abrupt past, and potential future changes. These processes are currently underestimated or missing in climate models. The expected outcomes include a better understanding of the non-linear responses in the climate system. This should provide significant benefits, such as an assessment of whether the smooth climate changes currently projected through to year 2100 are misleading.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE220100279
Funder
Australian Research Council
Funding Amount
$453,000.00
Summary
Did ocean circulation changes build the Antarctic ice sheet? The evolution of the Antarctic ice sheet, from its beginning 34 million years ago (Ma) until today, is critical to our understanding of future climate change. This project aims to improve climate and ocean model simulations of the early Oligocene (30 Ma) and middle Miocene (15 Ma), using higher resolution and more accurate paleogeography than has previously been done. Expected outcomes include improvements to paleoclimate reconstructio ....Did ocean circulation changes build the Antarctic ice sheet? The evolution of the Antarctic ice sheet, from its beginning 34 million years ago (Ma) until today, is critical to our understanding of future climate change. This project aims to improve climate and ocean model simulations of the early Oligocene (30 Ma) and middle Miocene (15 Ma), using higher resolution and more accurate paleogeography than has previously been done. Expected outcomes include improvements to paleoclimate reconstructions, better constraints on future climate change, and a better understanding of the impact of ocean eddies on Antarctic climate. These outcomes should strengthen Australia’s long-term program of climate modelling, and enable more effective climate adaptation, mitigation and risk management.Read moreRead less
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.
Investigating the controls on the extent of tidewater glaciers. This project aims to improve our ability to model tidewater glaciers. The project will conduct studies of two iconic glacial systems in Alaska: Glacier Bay and Columbia Glacier. These glaciers have recently experienced rapid retreat and contributed to sea level rise. In particular, the Grand Pacific Glacier has retreated 100 kilometres up Glacier Bay, the greatest recorded glacier retreat in the last 200 years. The project will use ....Investigating the controls on the extent of tidewater glaciers. This project aims to improve our ability to model tidewater glaciers. The project will conduct studies of two iconic glacial systems in Alaska: Glacier Bay and Columbia Glacier. These glaciers have recently experienced rapid retreat and contributed to sea level rise. In particular, the Grand Pacific Glacier has retreated 100 kilometres up Glacier Bay, the greatest recorded glacier retreat in the last 200 years. The project will use geomorphic mapping, dating and climate reanalysis to better understand the long term behaviour of these glaciers and the drivers of recent retreat. An expected outcome from the project is a better understanding of the long term behaviour of tidewater glaciers and an improvement in our ability to predict sea level rise from them.Read moreRead less
ARC Centre of Excellence for Climate Extremes. This Centre aims to transform understanding of past and present climate extremes and revolutionise Australia’s capability to predict them into the future. Climate extremes cost Australia up to $4 billion a year and will intensify over coming decades. This Centre’s blue-sky research will discover processes that explain the behaviour of present and future climate extremes. It will use its researchers, data, modelling, collaboration, graduate programme ....ARC Centre of Excellence for Climate Extremes. This Centre aims to transform understanding of past and present climate extremes and revolutionise Australia’s capability to predict them into the future. Climate extremes cost Australia up to $4 billion a year and will intensify over coming decades. This Centre’s blue-sky research will discover processes that explain the behaviour of present and future climate extremes. It will use its researchers, data, modelling, collaboration, graduate programme and early career researcher mentoring to transform Australia’s capacity to predict climate extremes. This research is expected to make Australia more resilient to climate extremes and minimise risks from climate extremes to the Australian environment, society and economy.Read moreRead less