Earth's Dynamic Topography Through Space and Time. A key component of Earth’s topography remains enigmatic. This so-called dynamic topography is transient, varying in response to convection within Earth’s mantle. This project aims to use a data-driven computational approach to: (i) reconstruct the evolution of dynamic topography over the recent geological history of our planet (Cenozoic Era, 0-66 million years ago); and (ii) uncover the mechanisms controlling its spatial and temporal evolution. ....Earth's Dynamic Topography Through Space and Time. A key component of Earth’s topography remains enigmatic. This so-called dynamic topography is transient, varying in response to convection within Earth’s mantle. This project aims to use a data-driven computational approach to: (i) reconstruct the evolution of dynamic topography over the recent geological history of our planet (Cenozoic Era, 0-66 million years ago); and (ii) uncover the mechanisms controlling its spatial and temporal evolution. This transformational new understanding will connect the evolution of our planet's surface environments to its deep interior, revealing the impact of dynamic topography on sea level change, flooding, river networks, groundwater systems, habitat development and the distribution of economic resources. Read moreRead less
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
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
Natural flood management: Nature-based flood mitigation in the 21st Century. The 2021-22 floods in Eastern Australia revealed the vulnerability of rivers to climate extremes. To prepare for a future with more intense floods, we must integrate nature-based flood mitigation strategies into river management. This project aims to address the potential of using Natural Flood Management (NFM) as a 21st Century flood mitigation solution. NFM uses natural processes to slow floods, reduce erosion, and mi ....Natural flood management: Nature-based flood mitigation in the 21st Century. The 2021-22 floods in Eastern Australia revealed the vulnerability of rivers to climate extremes. To prepare for a future with more intense floods, we must integrate nature-based flood mitigation strategies into river management. This project aims to address the potential of using Natural Flood Management (NFM) as a 21st Century flood mitigation solution. NFM uses natural processes to slow floods, reduce erosion, and minimise flood risk. Collaborating with NSW government partners the project expects to deliver scientific evidence for NFM and solutions for implementation in river rehabilitation, planning and community capacity building. The results will impact society's ability to adapt, reduce economic costs, and benefit the environment.Read moreRead less
Climate extremes and landscape responses across continental Australia. This project aims to determine the magnitude, frequency and duration of dry and wet extremes across the Australian continent over the last thousand years and examine landscape responses to such climate extremes. Using terrestrial records from key lake locations, the project expects to construct a record of mega-lakes and mega-droughts and determine whether such climatic phenomena are becoming more frequent or severe through t ....Climate extremes and landscape responses across continental Australia. This project aims to determine the magnitude, frequency and duration of dry and wet extremes across the Australian continent over the last thousand years and examine landscape responses to such climate extremes. Using terrestrial records from key lake locations, the project expects to construct a record of mega-lakes and mega-droughts and determine whether such climatic phenomena are becoming more frequent or severe through time. The project will develop palaeoclimatic data at sub-centennial resolution, examining the spatial coherence of the climate extremes. The project will integrate this with both the historical record and global climate modelling, allowing us to assess the dominant oceanographic and atmospheric conditions that lead to such extremes.Read moreRead less
Multi-scale ensemble modelling of coastal systems in a changing climate. This project aims to incorporate sandy shoreline adaptation by developing a time-varying framework for model ensemble averaging. This will significantly advance our ability to predict shoreline change over a range of management timescales from days to decades along high-value coastlines. This project expects to generate new knowledge in Coastal Engineering using new methods to train models and deliver unprecedented new shor ....Multi-scale ensemble modelling of coastal systems in a changing climate. This project aims to incorporate sandy shoreline adaptation by developing a time-varying framework for model ensemble averaging. This will significantly advance our ability to predict shoreline change over a range of management timescales from days to decades along high-value coastlines. This project expects to generate new knowledge in Coastal Engineering using new methods to train models and deliver unprecedented new shoreline data. The expected outcomes are enhanced capacity to predict shoreline change over a range of timescales and a better understanding of how sandy coastlines adapt to future climate variability. This should provide significant benefits by enabling a better assessment of coastal hazards along our high-value coastline.Read moreRead less
Breaking Gondwana: interplay between tectonics, climate and resources. The project aims to reconstruct 250 million years of landscape evolution in response to rifting and break-up of the Gondwana supercontinent, using the innovative approach of combining regional thermochronology with global plate tectonic models. From these reconstructions, the time-integrated record of exhumation and erosion at the continental margins will be revealed at an unprecedented scale. The main expected outcome will b ....Breaking Gondwana: interplay between tectonics, climate and resources. The project aims to reconstruct 250 million years of landscape evolution in response to rifting and break-up of the Gondwana supercontinent, using the innovative approach of combining regional thermochronology with global plate tectonic models. From these reconstructions, the time-integrated record of exhumation and erosion at the continental margins will be revealed at an unprecedented scale. The main expected outcome will be a deep time archive of the relationships between tectonic forcing, continental erosion and the global climate, which may assist predictions and debate on future climate change. The outcomes will also provide economic benefits as they will inform on the exhumation and preservation of (critical) mineral resources.Read moreRead less
Evolution. Morphodynamics and History of the Younghusband Peninsula. This project will examine the history and evolution of the Sir Richard-Younghusband Peninsula (SRYP) complex barrier in SA. The aims are to derive a understanding of how the influences of relative sea-level changes, neotectonics, and sediment supply, can produce remarkably different responses in barrier development. No complex barrier (i.e. foredune ridges in one portion, transgressive dunefields in another) has ever been compr ....Evolution. Morphodynamics and History of the Younghusband Peninsula. This project will examine the history and evolution of the Sir Richard-Younghusband Peninsula (SRYP) complex barrier in SA. The aims are to derive a understanding of how the influences of relative sea-level changes, neotectonics, and sediment supply, can produce remarkably different responses in barrier development. No complex barrier (i.e. foredune ridges in one portion, transgressive dunefields in another) has ever been comprehensively drilled, dated, modelled, or examined in the context of indigenous occupation and oral histories in Australia. The study provides excellent analogues for barrier and dune response, and shoreline translation to varying rates of sea level rise, paralleling pressures facing all coastlines today.Read moreRead less
Rivers of Gold: The Legacy of Historical Gold Mining for Victoria's Rivers. By considering rivers as cultural artefacts, this project aims to evaluate how historical gold mining has shaped river systems in Victoria. Victoria’s historic mining industry led to extensive and long-lasting change to waterways across the state. The project plans to integrate approaches from landscape archaeology, physical geography, geomorphology and environmental chemistry to identify and map the extent of changes, i ....Rivers of Gold: The Legacy of Historical Gold Mining for Victoria's Rivers. By considering rivers as cultural artefacts, this project aims to evaluate how historical gold mining has shaped river systems in Victoria. Victoria’s historic mining industry led to extensive and long-lasting change to waterways across the state. The project plans to integrate approaches from landscape archaeology, physical geography, geomorphology and environmental chemistry to identify and map the extent of changes, including increased sedimentation, erosion, and chemical contamination. The project plans to demonstrate how historical mining continues to influence chemical and physical processes in Victorian streams and to develop understanding of the landscapes experienced by Victorians at the height of the mining boom. Project outcomes may provide improved context for catchment and reservoir management and counter prevailing impressions about causes of observed damage to rivers.Read moreRead less