Large Scale Natural Convection Boundary Layers with Non-Boussinesq Effects. This proposal aims to understand and predict heat transfer by turbulent natural convection in two scenarios, firstly at very large environmental scales, such as occur on melting Antarctic ice sheets, and secondly convection involving very large temperature differences such as occur in solar thermal power plants and industrial processes. These natural convection flow regimes are incredibly difficult to investigate directl ....Large Scale Natural Convection Boundary Layers with Non-Boussinesq Effects. This proposal aims to understand and predict heat transfer by turbulent natural convection in two scenarios, firstly at very large environmental scales, such as occur on melting Antarctic ice sheets, and secondly convection involving very large temperature differences such as occur in solar thermal power plants and industrial processes. These natural convection flow regimes are incredibly difficult to investigate directly but by focusing on the fundamental dynamics of the turbulent flows using large scale numerical simulations and innovative experiments, the project is expected to develop better analytical and computational models which will underpin improvements in
global ocean models and improve energy efficiency.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210100004
Funder
Australian Research Council
Funding Amount
$440,185.00
Summary
Mixing and air-sea coupling in the Pacific: Toward better El Nino forecasts. The Tropical Pacific drives significant year-to-year variability in Australian rainfall and climate extremes. However, tropical climate predictions are severely limited due to systematic biases in numerical climate models. Using new techniques and leveraging international collaborations, this project aims to transform our ability to simulate tropical Pacific climate through a new understanding of key air-sea interaction ....Mixing and air-sea coupling in the Pacific: Toward better El Nino forecasts. The Tropical Pacific drives significant year-to-year variability in Australian rainfall and climate extremes. However, tropical climate predictions are severely limited due to systematic biases in numerical climate models. Using new techniques and leveraging international collaborations, this project aims to transform our ability to simulate tropical Pacific climate through a new understanding of key air-sea interaction and ocean mixing processes. Expected outcomes include a better representation of tropical climate in the Australian climate model and improved seasonal to interannual predictive capability. These improved predictions will give communities more time to prepare for extreme events such as droughts, heatwaves and bushfires.Read moreRead less
Testing a new explanation of cloud feedback on global climate. A new analysis suggests that the sensitivity of global climate to greenhouse gases is largely controlled by the upward transport of water vapour in the lower troposphere, but the analysis did not examine clouds, which must be involved for the mechanism to be valid. The aim of the proposed project is to determine whether variations in cloud implied by this new explanation are supported by observations and process models. If the explan ....Testing a new explanation of cloud feedback on global climate. A new analysis suggests that the sensitivity of global climate to greenhouse gases is largely controlled by the upward transport of water vapour in the lower troposphere, but the analysis did not examine clouds, which must be involved for the mechanism to be valid. The aim of the proposed project is to determine whether variations in cloud implied by this new explanation are supported by observations and process models. If the explanation is confirmed, then for the first time in over 30 years of intense research it will be possible to determine the long-term severity of global warming by examining the present-day atmosphere. The expected outcome of this research is to clarify how and why low clouds change in altered climates.Read moreRead less
Australian Laureate Fellowships - Grant ID: FL150100035
Funder
Australian Research Council
Funding Amount
$2,765,281.00
Summary
Revisiting the physics of clouds. Revisiting the physics of clouds: This fellowship project aims to bring new rigour to climate modelling by improving our understanding of key phenomena like clouds and storms. Earth’s climate has taken a number of turns in the recent and geologic past that so far cannot be reproduced in models. Clouds and atmospheric turbulence are also a problem for weather and climate prediction, the conceptual understanding of which now has evident flaws. The hypothesis of th ....Revisiting the physics of clouds. Revisiting the physics of clouds: This fellowship project aims to bring new rigour to climate modelling by improving our understanding of key phenomena like clouds and storms. Earth’s climate has taken a number of turns in the recent and geologic past that so far cannot be reproduced in models. Clouds and atmospheric turbulence are also a problem for weather and climate prediction, the conceptual understanding of which now has evident flaws. The hypothesis of this project is that these two problems are strongly linked, and that this link may be exploited to solve problems across disciplines. This project aims to systematically re-evaluate our conceptual understanding of cloud physics, and investigate how this affects our understanding of climate phenomena in Earth’s past and future.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE120102927
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Ingredients of the eddy soup in Southern Ocean dynamics: processes, climate impacts and parameterisation. This project aims to understand jet-topography-eddy interactions in the Southern Ocean, and to apply that understanding to improving the representation of ocean physics in models. It will provide the underpinning science needed to increase confidence in climate predictions that will allow Australia to more effectively respond to climate change.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE140100079
Funder
Australian Research Council
Funding Amount
$200,000.00
Summary
A thermally stratified Sea-Ice-Wave Interaction Facility. A thermally stratified sea ice wave interaction facility: Predictions of climate change now impact all levels of society as future political, social and environmental plans are made on the basis of these models. Predictions require models of many complex dynamical processes with a wide range of parameters. An important process is the Marginal Ice Zone (MIZ) dynamics. The MIZ is the region between the open ocean and the fully ice-covered o ....A thermally stratified Sea-Ice-Wave Interaction Facility. A thermally stratified sea ice wave interaction facility: Predictions of climate change now impact all levels of society as future political, social and environmental plans are made on the basis of these models. Predictions require models of many complex dynamical processes with a wide range of parameters. An important process is the Marginal Ice Zone (MIZ) dynamics. The MIZ is the region between the open ocean and the fully ice-covered ocean where waves and ice interact, causing ice-breaking and wave attenuation. This unique facility will enable experiments in sea-ice-wave interactions in a controlled environment. Water and air temperature, thermal stratification, water waveform and ice properties will be adjusted in order to preserve key characteristics of the complex ocean environment.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
ARC Centres of Excellence for Climate System Science. Our capacity to assess the threat of climate change is undermined by an unacceptable level of uncertainty in the understanding and modelling of regional climates. The Centre will undertake world-class research targeting identified weaknesses in the physical, chemical and biological components of the climate system. We will engage and nurture graduate students and postdoctoral follows through a program of graduate training and mentoring to per ....ARC Centres of Excellence for Climate System Science. Our capacity to assess the threat of climate change is undermined by an unacceptable level of uncertainty in the understanding and modelling of regional climates. The Centre will undertake world-class research targeting identified weaknesses in the physical, chemical and biological components of the climate system. We will engage and nurture graduate students and postdoctoral follows through a program of graduate training and mentoring to permanently transform our understanding of climate systems science particularly for the Australian region. The key outcome will be a dramatic enhancement in national capacity to understand and project the scale of future regional climate change.Read moreRead less
Precipitation-groundwater interactions over eastern Australia: climate change impacts at multiple scales. Most surface water in the Murray-Darling Basin is used for agricultural activity, and groundwater extraction is accelerating. We cannot yet predict how these water resources will be affected by climate change, partly because Australian climate models do not represent key interactions between small and large scale rainfall changes, and interactions between ground water, the land surface and t ....Precipitation-groundwater interactions over eastern Australia: climate change impacts at multiple scales. Most surface water in the Murray-Darling Basin is used for agricultural activity, and groundwater extraction is accelerating. We cannot yet predict how these water resources will be affected by climate change, partly because Australian climate models do not represent key interactions between small and large scale rainfall changes, and interactions between ground water, the land surface and the atmosphere. This project will produce the first climate simulations that explicitly include these interactions. This will allow a better understanding of future changes to groundwater resources. This understanding will help us plan ahead, and enable new research to help Australia maintain food security in an uncertain future.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE160100051
Funder
Australian Research Council
Funding Amount
$3,000,000.00
Summary
Maintaining and enhancing merit-based access to the NCI National Facility. Maintaining and enhancing merit-based access to the national computational infrastructure facility:
This project aims to ensure that Australian researchers have access to the integrated high-performance computing and data environments they need. Australia’s national computational infrastructure (NCI) is the national, high-end research computing facility, providing researchers in universities, government science agencies ....Maintaining and enhancing merit-based access to the NCI National Facility. Maintaining and enhancing merit-based access to the national computational infrastructure facility:
This project aims to ensure that Australian researchers have access to the integrated high-performance computing and data environments they need. Australia’s national computational infrastructure (NCI) is the national, high-end research computing facility, providing researchers in universities, government science agencies and industry with world-class, integrated, high-performance services. These services enable high-impact, data-intensive computational research in all fields of science and technology. This project would continue merit-based access to NCI at the current level, ensuring ongoing international competitiveness of Australian research.Read moreRead less