Climate variability, water allocation and land use change impacts on surface-groundwater interactions and salinity discharge. This project contributes to the national research priority of an Environmentally Sustainable Australia and its three sub-priorities: Water-a critical resource; Overcoming salinity and acidity; and Responding to climate change and variability as well as to the National Water Initiative goal: connected surface and groundwater resources managed as a single resource. These em ....Climate variability, water allocation and land use change impacts on surface-groundwater interactions and salinity discharge. This project contributes to the national research priority of an Environmentally Sustainable Australia and its three sub-priorities: Water-a critical resource; Overcoming salinity and acidity; and Responding to climate change and variability as well as to the National Water Initiative goal: connected surface and groundwater resources managed as a single resource. These embody the clear imperative in Australia to improve the management and use of our stream and groundwater systems in the face of long-term climate variability and changing water use. Knowledge gained from this study of coupled surface-groundwater systems in nationally important catchments will be used to improve water allocation and use strategies and salinity mitigation. Read moreRead less
Understanding global warming using long-term glacier retreat records. This project will determine the sensitivity of climate to future global warming, contributing to understanding one of the greatest problems facing humanity today. We will take an historic approach, determining the effects of the greatest global warming in Earth's recent history after the last ice age 20,000 years ago. By constructing well-dated, accurate records of glacier retreat at key locations, we will quantitatively estim ....Understanding global warming using long-term glacier retreat records. This project will determine the sensitivity of climate to future global warming, contributing to understanding one of the greatest problems facing humanity today. We will take an historic approach, determining the effects of the greatest global warming in Earth's recent history after the last ice age 20,000 years ago. By constructing well-dated, accurate records of glacier retreat at key locations, we will quantitatively estimate temperature change as the planet warmed. These findings will help us understand the future effects of global warming so that we are better prepared for the environmental and economic costs. Read moreRead less
Limits to ocean surface temperature in future climates. This project aims to investigate whether ocean surface temperatures can increase beyond the 35 degree centigrade threshold for the survival of humans and many other mammal species. Climate models predict that ocean surface temperatures will exceed 35 degree centigrade in parts of the middle east and throughout much of South East Asia in as little as 50 years. This project will use a series of laboratory experiments to test whether parts of ....Limits to ocean surface temperature in future climates. This project aims to investigate whether ocean surface temperatures can increase beyond the 35 degree centigrade threshold for the survival of humans and many other mammal species. Climate models predict that ocean surface temperatures will exceed 35 degree centigrade in parts of the middle east and throughout much of South East Asia in as little as 50 years. This project will use a series of laboratory experiments to test whether parts of the ocean surface can be warmed beyond this limit under natural conditions. Expected outcomes of this project are a new understanding of what sets the maximum surface temperature of the ocean, thereby allowing us to determine whether coastal regions of the humid tropics and sub-tropics will remain habitable for humans and other mammal species in the near future.Read moreRead less
Groundwater flow age distributions: Understanding open pit mine hydrology. This project aims to improve the estimation of the age of groundwater. Understanding groundwater age is critical for sustainable management and environmental tracers are increasingly used for this purpose. However, groundwater samples are inevitably mixtures of water of different ages. Since for most tracers the relationship between tracer concentration and age is not linear, different tracers can produce different mean a ....Groundwater flow age distributions: Understanding open pit mine hydrology. This project aims to improve the estimation of the age of groundwater. Understanding groundwater age is critical for sustainable management and environmental tracers are increasingly used for this purpose. However, groundwater samples are inevitably mixtures of water of different ages. Since for most tracers the relationship between tracer concentration and age is not linear, different tracers can produce different mean ages for the sample. This project aims to determine whether it is possible to determine moments of the groundwater age distributions from measurements made with different environmental tracers. The project also aims to examine whether the degree of heterogeneity within the aquifer can be determined from the disparity between ages obtained with different tracers. This project aims to tackle the largest problem with using groundwater chemistry to estimate water age – that mixing processes in the subsurface are never known. Solving this problem will allow much more accurate estimates of groundwater velocity and aquifer recharge rates. The groundwater industry contributes an estimated $6.8 billion per annum to the Australian economy, and this project will contribute to the sustainable management of the groundwater resource.Read moreRead less
Origins and distributions of intraplate earthquakes. This project aims to investigate the behaviour and origin of intraplate earthquakes in Australia by developing a multi-million-year record of earthquakes using geological, geochronological, geospatial, seismological, statistical and numerical modelling data. It will use maximum credible magnitudes, maximum shaking intensities of intraplate earthquakes and spatiotemporal relationships between large prehistoric and contemporary earthquakes to im ....Origins and distributions of intraplate earthquakes. This project aims to investigate the behaviour and origin of intraplate earthquakes in Australia by developing a multi-million-year record of earthquakes using geological, geochronological, geospatial, seismological, statistical and numerical modelling data. It will use maximum credible magnitudes, maximum shaking intensities of intraplate earthquakes and spatiotemporal relationships between large prehistoric and contemporary earthquakes to improve models of future seismic hazard in Australia and globally. This will lead to improved predictions of future earthquake impacts in urban and natural environments and development of new paleoseismic techniques.Read moreRead less
Groundwater dynamics and surface water interactions in the Lower Murrumbidgee Catchment, New South Wales. Water is Australia's most limiting resource. This research will contribute to the sustainable management of groundwater resources in the regional and rural areas of the Lower Murrumbidgee catchment, an important agricultural and horticultural region of Australia. Strategies for sustainable use of water resources will be improved by understanding the impacts of irrigation on groundwater quali ....Groundwater dynamics and surface water interactions in the Lower Murrumbidgee Catchment, New South Wales. Water is Australia's most limiting resource. This research will contribute to the sustainable management of groundwater resources in the regional and rural areas of the Lower Murrumbidgee catchment, an important agricultural and horticultural region of Australia. Strategies for sustainable use of water resources will be improved by understanding the impacts of irrigation on groundwater quality and aquifer extractions. The project will train new scientists in current and new groundwater techniques and improve strategic linkages between the Industry and University sectors through support of student research and a Linkage Fellowship for the key industry partner participant.Read moreRead less
Observed streamflow generation changes: better understanding and modelling. This Project aims to investigate drivers and triggers of variable streamflow response during and after drought and develop modelling strategies and model structures more robust to changing streamflow response. In many catchments during the Millennium Drought, streamflow generation was less than expected and hydrologic models performed poorly. After the drought, streamflow generation is yet to recover in some catchments. ....Observed streamflow generation changes: better understanding and modelling. This Project aims to investigate drivers and triggers of variable streamflow response during and after drought and develop modelling strategies and model structures more robust to changing streamflow response. In many catchments during the Millennium Drought, streamflow generation was less than expected and hydrologic models performed poorly. After the drought, streamflow generation is yet to recover in some catchments. This Project expects to generate new knowledge about variable streamflow response to drought and develop strategies and models to robustly simulate runoff during and after changed conditions, which should provide significant benefit via better understanding and modelling of streamflow response under changing conditions.Read moreRead less
Sea-level change in the Australasian region during the past 6000 years: Understanding the past to predict the future. Interactions of climate, ice, oceans, and solid earth result in complex variations sea level in time and space. This proposal develops a predictive understanding of this change through an interdisciplinary integration of geophysical theory and geologic observations. Focus is on the Australian area and on the present interglacial but the outcomes will be placed in a global frame. ....Sea-level change in the Australasian region during the past 6000 years: Understanding the past to predict the future. Interactions of climate, ice, oceans, and solid earth result in complex variations sea level in time and space. This proposal develops a predictive understanding of this change through an interdisciplinary integration of geophysical theory and geologic observations. Focus is on the Australian area and on the present interglacial but the outcomes will be placed in a global frame. Outcomes will include estimates of rates and amplitudes of sea-level change, of changes in ice volume, of land movements from isostatic and tectonic causes. It also provides the framework necessary for separating natural change from anthropogenic change during the recent past and for predicting future regional and global sea-level change on a century time scale.Read moreRead less
Australian Laureate Fellowships - Grant ID: FL120100050
Funder
Australian Research Council
Funding Amount
$3,079,069.00
Summary
Sea level change and climate sensitivity. This project will aim to improve understanding of climate and sea-level change on timescales relevant to longer-term planning, by characterising the relationship between past sea-level/ice-volume change and other key climate factors such as temperature and greenhouse gases, and by quantifying how rapidly sea level may adjust to climate change.
Water availability, evaporative demand and climate change. Water availability is the balance between supply (i.e., rainfall) and evaporative demand. Rainfall is well studied but evaporative demand is not. The scientifically useful measure of evaporative demand is the rate of evaporation of water from a metal pan - called pan evaporation. Worldwide measurements show decreasing pan evaporation rate over the last 30-50 years. This project will for the first time make a detailed study of that phenom ....Water availability, evaporative demand and climate change. Water availability is the balance between supply (i.e., rainfall) and evaporative demand. Rainfall is well studied but evaporative demand is not. The scientifically useful measure of evaporative demand is the rate of evaporation of water from a metal pan - called pan evaporation. Worldwide measurements show decreasing pan evaporation rate over the last 30-50 years. This project will for the first time make a detailed study of that phenomenon using a new purpose-built evaporation pan. This will result in better information and policy advice about changes in water availability with climate change.Read moreRead less