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The Response of the Middle Atmosphere to Solar and Dynamical Forcing. The region of the atmosphere and ionosphere between 50 and 100 km is difficult to measure directly. We will use a unique array of instruments deployed across Australia to study how this region responds to waves generated in the lower atmosphere and to changes in electromagnetic energy from the sun and particle precipitation from the magnetosphere. Outcomes will help our understanding of how the region is responding to rising l ....The Response of the Middle Atmosphere to Solar and Dynamical Forcing. The region of the atmosphere and ionosphere between 50 and 100 km is difficult to measure directly. We will use a unique array of instruments deployed across Australia to study how this region responds to waves generated in the lower atmosphere and to changes in electromagnetic energy from the sun and particle precipitation from the magnetosphere. Outcomes will help our understanding of how the region is responding to rising levels of greenhouse gas concentrations. Cooling effects are already apparent and our research will look for additional evidence of change.Read moreRead less
Quantum Mechanics and Planetary Atmospheres. The project will increase the visibility and status of Australian research, by the participation of researchers and students in a wide international collaboration, covering experiments, theory, and computation, which will solve a fundamental research problem that has previously defied understanding. The resulting nitrogen model will be relevant to the important fields of global and planetary atmospheric change, and will find immediate application in t ....Quantum Mechanics and Planetary Atmospheres. The project will increase the visibility and status of Australian research, by the participation of researchers and students in a wide international collaboration, covering experiments, theory, and computation, which will solve a fundamental research problem that has previously defied understanding. The resulting nitrogen model will be relevant to the important fields of global and planetary atmospheric change, and will find immediate application in the analysis of results from the NASA missions, Voyager, Cassini, and (later) New Horizons. In the experimental part of the project, an Australian-first extreme-ultraviolet laser facility will be developed which will provide research opportunities complementary to the Australian Synchrotron.Read moreRead less
Structural transitions in turbulent fluids and plasma through self-organization. Studies into structural transitions in turbulent systems will greatly benefit Australia through its contributions to the science of complex systems, in the areas of self-organization and turbulence control. Applications range from understanding the formation of the Earth's atmospheric spectrum to generation of transport barriers in magnetically confined plasma, as well as development of novel methods of turbulence c ....Structural transitions in turbulent fluids and plasma through self-organization. Studies into structural transitions in turbulent systems will greatly benefit Australia through its contributions to the science of complex systems, in the areas of self-organization and turbulence control. Applications range from understanding the formation of the Earth's atmospheric spectrum to generation of transport barriers in magnetically confined plasma, as well as development of novel methods of turbulence control in engineering. Recent discoveries by the authors open a window of opportunity for a breakthrough in this fundamental field of modern science. The project is based on several national and international collaborations. Australian postgraduate and research training is an integral part of the project.Read moreRead less
Polar Cap Region Boundary Dynamics. Geomagnetic storms have the potential to severely impair critical technology infrastructure. Consequences of strong geomagnetic activity can include power failures, pipeline corrosion, satellite failures, inaccurate GPS positioning and radio navigation. Knowledge of how, where and under which conditions this activity occurs is therefore crucial. The primary aim of this project is to extend our knowledge of the mechanisms by which this activity occurs. This wor ....Polar Cap Region Boundary Dynamics. Geomagnetic storms have the potential to severely impair critical technology infrastructure. Consequences of strong geomagnetic activity can include power failures, pipeline corrosion, satellite failures, inaccurate GPS positioning and radio navigation. Knowledge of how, where and under which conditions this activity occurs is therefore crucial. The primary aim of this project is to extend our knowledge of the mechanisms by which this activity occurs. This work will consolidate Australia's international space profile and provide excellent training in this field, helping Australia's future technology development.Read moreRead less
Ground based monitoring of plasma dynamics in the magnetosphere. We will use a new technique to study the plasmapause, a fundamental and highly dynamic boundary in geospace. This is usually examined using spacecraft and ground-based VLF measurements, but these suffer several limitations. We have developed the ability to monitor plasma density in geospace, by measuring the resonant frequency of geomagnetic field line oscillations. This project will use data from extensive ground magnetometer a ....Ground based monitoring of plasma dynamics in the magnetosphere. We will use a new technique to study the plasmapause, a fundamental and highly dynamic boundary in geospace. This is usually examined using spacecraft and ground-based VLF measurements, but these suffer several limitations. We have developed the ability to monitor plasma density in geospace, by measuring the resonant frequency of geomagnetic field line oscillations. This project will use data from extensive ground magnetometer arrays to thus study the spatial and temporal variation in particle density near the plasmapause. Comparison with VLF and spacecraft measurements will provide new information on the plasma composition and dynamics in this important region.Read moreRead less
Current-free double layers applied to astrophysical objects and space propulsion. The collaboration between the ANU research group and European Aeronautic Defence and Space Company (EADS) ASTRIUM, the largest European aerospace company, is a unique opportunity for Australia to capitalize on the new discovery of the Helicon Double Layer Thruster made at the ANU. This will allow the Australian space community to stay abreast of international developments in space propulsion and to be with the fore ....Current-free double layers applied to astrophysical objects and space propulsion. The collaboration between the ANU research group and European Aeronautic Defence and Space Company (EADS) ASTRIUM, the largest European aerospace company, is a unique opportunity for Australia to capitalize on the new discovery of the Helicon Double Layer Thruster made at the ANU. This will allow the Australian space community to stay abreast of international developments in space propulsion and to be with the forerunners of this new technology. ANU will have direct access to EADS-ASTRIUM via the relationships developed in this project putting Australia in the enviable position of being an insider in future space developments concerning plasma thrusters and space technology in general.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989069
Funder
Australian Research Council
Funding Amount
$450,000.00
Summary
A New Digital Radar for Studies in Solar-Terrestrial and Atmospheric Physics. Australia is a world leader in the development of High Frequency (HF) radar surveillance systems, such as JORN (Jindalee over-the-horizon radar). However, Australia's ability to support these operations and remain a leader in these fields depends on its capacity to nurture expertise and train new personnel in these areas. The new HF radar system will play a crucial role in this respect, providing (i) high-level trainin ....A New Digital Radar for Studies in Solar-Terrestrial and Atmospheric Physics. Australia is a world leader in the development of High Frequency (HF) radar surveillance systems, such as JORN (Jindalee over-the-horizon radar). However, Australia's ability to support these operations and remain a leader in these fields depends on its capacity to nurture expertise and train new personnel in these areas. The new HF radar system will play a crucial role in this respect, providing (i) high-level training in radar technology and associated science, (ii) a test bed for the development of new instrumental and data analysis techniques, (c) new information on the source of ionospheric perturbations that can affect the performance of JORN, and (d) data important for Australia's space weather prediction community, via IPS (Ionospheric Prediction Service) Radio and Space Services.Read moreRead less
WAVES IN THE MIDDLE ATMOSPHERE. Atmospheric waves have a profound influence in the atmosphere. A unique network of radars in the southern hemisphere will be used to study wave processes in the upper atmosphere. The project will investigate causes of wave variability, wave sources and wave-wave interactions and will involve satellite measurements and international collaboration. Results will guide the development and testing of schemes that incorporate the effects of small-scale waves in numerica ....WAVES IN THE MIDDLE ATMOSPHERE. Atmospheric waves have a profound influence in the atmosphere. A unique network of radars in the southern hemisphere will be used to study wave processes in the upper atmosphere. The project will investigate causes of wave variability, wave sources and wave-wave interactions and will involve satellite measurements and international collaboration. Results will guide the development and testing of schemes that incorporate the effects of small-scale waves in numerical weather and climate models. Outcomes from the project will have application in modelling climate change.Read moreRead less
Isotopic fractionation in planetary atmospheres. Ongoing changes in the Earth's atmosphere, such as ozone depletion, demonstrate the need to understand atmospheric photochemical processes. Isotopic fractionation is one vehicle for obtaining
detailed insight into these processes. The proposed research will
increase our understanding of fundamental molecular processes and use these new results to improve our knowledge of isotopic fractionation in planetary atmospheres. The resulting models wil ....Isotopic fractionation in planetary atmospheres. Ongoing changes in the Earth's atmosphere, such as ozone depletion, demonstrate the need to understand atmospheric photochemical processes. Isotopic fractionation is one vehicle for obtaining
detailed insight into these processes. The proposed research will
increase our understanding of fundamental molecular processes and use these new results to improve our knowledge of isotopic fractionation in planetary atmospheres. The resulting models will lead to new insight into the Earth's ozone chemistry and the recent evolution of Titan's and Venus' atmospheres, including how much water may have been present on Venus in the recent past. The research program also enables Australian participation in three international spacecraft
missions.
Read moreRead less
The coldest region on Earth gets even colder. Studying the observable atmospheric indicators of climate change is of national interest and importance. It strengthens the Australia's participation and further recognition in this research area. This project adds to the Australia's contribution to fundamental atmospheric physics and complements work carried out by other Australian researchers. Australian science further benefits from satellite data access and analyses skills. Development of interna ....The coldest region on Earth gets even colder. Studying the observable atmospheric indicators of climate change is of national interest and importance. It strengthens the Australia's participation and further recognition in this research area. This project adds to the Australia's contribution to fundamental atmospheric physics and complements work carried out by other Australian researchers. Australian science further benefits from satellite data access and analyses skills. Development of international collaborations in this research area and involvement in several international satellite projects is important for future national atmospheric and space programs. Postgraduate training in this area provides expertise needed at many Australian organisations. Read moreRead less