Looking back to see the future: Change in the Lambert Glacier and the East Antarctic Ice Sheet. To develop a comprehensive understanding of the Lambert Glacier of East Antarctica, from the time of the last maximum glaciation to the present, through an integrated and interdisciplinary study combining new field evidence - ice retreat history, geodetic measurements of crustal rebound, satellite measurements of present ice heights and changes therein - with other geological and glaciological data an ....Looking back to see the future: Change in the Lambert Glacier and the East Antarctic Ice Sheet. To develop a comprehensive understanding of the Lambert Glacier of East Antarctica, from the time of the last maximum glaciation to the present, through an integrated and interdisciplinary study combining new field evidence - ice retreat history, geodetic measurements of crustal rebound, satellite measurements of present ice heights and changes therein - with other geological and glaciological data and numerical geophysical modelling advances. The project contributes to the quantitative characterisation of the complex interactions between ice-sheets, oceans and solid earth within the climate system. Outcomes have implications for geophysics, glaciology, geomorphology, climate, and past and future sea-level change.Read moreRead less
Tracking the response of terrestrial and ocean waters to climate variations using space gravity observations. Climate change puts Australia at risk from sea level rise and an increase in the occurrence and intensity of droughts. We need to learn about issues concerning the water cycle that are still poorly understood, such as whether droughts cause a reduction in only surface water or also water stored in underground reservoirs and what happens to ocean waters when thermal expansion causes an in ....Tracking the response of terrestrial and ocean waters to climate variations using space gravity observations. Climate change puts Australia at risk from sea level rise and an increase in the occurrence and intensity of droughts. We need to learn about issues concerning the water cycle that are still poorly understood, such as whether droughts cause a reduction in only surface water or also water stored in underground reservoirs and what happens to ocean waters when thermal expansion causes an increase in sea surface height in some regions but not others. This proposal will provide new and accurate scientific information on the risks of sea level rise through the effects of thermal expansion of the oceans, in particular in shallow coastal zones. It will help us to understand droughts, variations in water resources and groundwater recharge patterns.Read moreRead less
Quantifying sea-level trends and extremes along Australia's coastal margin. Multi-decadal changes in sea-level, and sea-level extremes, cannot be well quantified along most global coastlines, including Australia's, because the high spatial variability of sea-level is under-sampled by the sparse set of long, high quality tide gauge records. Satellite altimetry provides an alternative data source with greater spatial sampling, yet experiences contamination from land within tens of kilometres from ....Quantifying sea-level trends and extremes along Australia's coastal margin. Multi-decadal changes in sea-level, and sea-level extremes, cannot be well quantified along most global coastlines, including Australia's, because the high spatial variability of sea-level is under-sampled by the sparse set of long, high quality tide gauge records. Satellite altimetry provides an alternative data source with greater spatial sampling, yet experiences contamination from land within tens of kilometres from the coast and also suffers from regionally correlated biases. This project proposes to address these problems through re-tracking radar altimetry waveforms to derive new data in the coastal margin, enabling the production of new inferences on sea-level change and extremes at dramatically improved spatial resolution around Australia.Read moreRead less
Space gravity: squeezing the last drop of hydrological information out of current and future missions. Australia needs space gravity measurements in order to estimate regional-scale total water storage changes on our continent. This project will deliver the analysis capability required to exploit all the measurements of the current Gravity Recovery and Climate Experiment (GRACE) mission and to place Australia in a state of readiness for the 2017 GRACE Follow On mission.
GRACE follow-on: validation of measurements and initial results. This project aims to advance knowledge to quantify ongoing mass loss of Earth’s polar ice caps and glaciers, increases in sea level, and changes in continental water storage. The project expects to improve the capability to monitor changes on Earth using satellites and to enhance analysis by exploiting data from new instrumentation on the GRACE Follow-On space gravity mission, due for launch in 2018. Expected results aim to improve ....GRACE follow-on: validation of measurements and initial results. This project aims to advance knowledge to quantify ongoing mass loss of Earth’s polar ice caps and glaciers, increases in sea level, and changes in continental water storage. The project expects to improve the capability to monitor changes on Earth using satellites and to enhance analysis by exploiting data from new instrumentation on the GRACE Follow-On space gravity mission, due for launch in 2018. Expected results aim to improve computational tools and to develop expertise to analyse the new data. Other expected outcomes include reliable methods to monitor significant sea-level rise and associated societal and economic disruptions.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190101389
Funder
Australian Research Council
Funding Amount
$325,000.00
Summary
Imaging, analysing and forecasting Australian hazards with satellites. This project aims to improve Australia’s ability to anticipate geophysical hazards. It will generate a new national capability in the use of satellite radar imagery to monitor and manage geohazards, benefiting all communities. By producing high-resolution maps of ground displacements, the project will assess the controls upon where and why these events occur, and whether they exhibit precursory behaviour. This is the first st ....Imaging, analysing and forecasting Australian hazards with satellites. This project aims to improve Australia’s ability to anticipate geophysical hazards. It will generate a new national capability in the use of satellite radar imagery to monitor and manage geohazards, benefiting all communities. By producing high-resolution maps of ground displacements, the project will assess the controls upon where and why these events occur, and whether they exhibit precursory behaviour. This is the first step towards accurate hazard forecasting and in building Australia's capability for near-real-time geophysical hazard monitoring on a national scale. The outputs will impact upon future recommendations for national earthquake and landslide monitoring and deliver new tools to underpin regulation of resource extraction and inform construction codes.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE150100105
Funder
Australian Research Council
Funding Amount
$570,000.00
Summary
Broadband receivers for AuScope geodetic and astronomical applications . Broadband receivers for AuScope geodetic and astronomical applications: This project aims to develop an innovative broadband receiver system which will be deployed on the AuScope array of radio telescopes. This will enable the telescopes to play a key role in improving precision navigation both in Australia and throughout the Southern Hemisphere. The new receiver systems will significantly improve the capability of these fa ....Broadband receivers for AuScope geodetic and astronomical applications . Broadband receivers for AuScope geodetic and astronomical applications: This project aims to develop an innovative broadband receiver system which will be deployed on the AuScope array of radio telescopes. This will enable the telescopes to play a key role in improving precision navigation both in Australia and throughout the Southern Hemisphere. The new receiver systems will significantly improve the capability of these facilities for both geodetic and astronomical investigations. Improvements to the accuracy of the terrestrial reference frame in Australia will allow more accurate measurements of changes in sea level, while high precision astrometric observations undertaken with the new receivers will be used to determine the structure of our Milky Way Galaxy.Read moreRead less
Caught in a vice: Modelling crustal deformation in Papua New Guinea. Papua New Guinea is trapped between the collision of the Australian and Pacific Plates. This proposal uses GPS methods to measure and model the tectonic motion across Papua New Guinea, identifies and quantifies areas undergoing regional deformation near plate boundaries and within tectonic blocks, and evaluates the tectonic processes associated with such deformation. Numerical models will be developed to match the observed site ....Caught in a vice: Modelling crustal deformation in Papua New Guinea. Papua New Guinea is trapped between the collision of the Australian and Pacific Plates. This proposal uses GPS methods to measure and model the tectonic motion across Papua New Guinea, identifies and quantifies areas undergoing regional deformation near plate boundaries and within tectonic blocks, and evaluates the tectonic processes associated with such deformation. Numerical models will be developed to match the observed site motions, thereby revealing the nature of the active plate boundaries and the characteristics of the Earth's crust and mantle. The project will produce new results necessary for assessing the tectonic hazards of Papua New Guinea.
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Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0236393
Funder
Australian Research Council
Funding Amount
$175,000.00
Summary
A Gigabit per second Data Recording System for Geodesy and Astronomy. We plan to acquire a gigabit per second digital data recorder for geodesy and astronomy. We will develop a geodetic VLBI capability to provide independent confirmation of results from alternative techniques such as GPS and SLR and allow us to characterise and remove the systematic errors inherent in these systems. We will estimate motion at sites from the combination of VLBI, GPS, gravity and tide gauge data for geodynamic ef ....A Gigabit per second Data Recording System for Geodesy and Astronomy. We plan to acquire a gigabit per second digital data recorder for geodesy and astronomy. We will develop a geodetic VLBI capability to provide independent confirmation of results from alternative techniques such as GPS and SLR and allow us to characterise and remove the systematic errors inherent in these systems. We will estimate motion at sites from the combination of VLBI, GPS, gravity and tide gauge data for geodynamic effects, such as post-glacial rebound and tectonic motion and global mean sea level change.
We will increase the density of southern radio sources used to define the International Celestial Reference Frame and investigate their structure and evolution. We will make high time resolution observations of young pulsars to study the phenomena of pulsar glitches and aid in the understanding of neutron star interiors.Read moreRead less
Environmental geodesy: variations of sea level and water storage in the Australian region. It is essential for Australia's long-term planning and security that the effects of global warming on our nation's water resources and coastlines are quantified. Sea level variations projected into the future vary around Australia and have large uncertainties, yet the impacts have substantial social and financial ramifications for our community. Australia hasn't yet quantified accurately its critical water ....Environmental geodesy: variations of sea level and water storage in the Australian region. It is essential for Australia's long-term planning and security that the effects of global warming on our nation's water resources and coastlines are quantified. Sea level variations projected into the future vary around Australia and have large uncertainties, yet the impacts have substantial social and financial ramifications for our community. Australia hasn't yet quantified accurately its critical water resources nor how they are changing. This proposal will address both these issues, providing for the first time valuable and accurate information for planning appropriate strategies to mitigate the impact of sea level rise and water storage on the Australian society.Read moreRead less