Hydrodynamics of Fringing Reef Systems. This project aims to develop a numerical circulation model applicable to fringing reef systems, in particular, the Ningaloo reef, Western Australia. The model will include the effects of tides, winds, surface gravity waves and density. The model results will be compared to field measurements collected by the Australian Institute of Marine Science. After the model has been developed and validated, it will be used to investigate processes such as water e ....Hydrodynamics of Fringing Reef Systems. This project aims to develop a numerical circulation model applicable to fringing reef systems, in particular, the Ningaloo reef, Western Australia. The model will include the effects of tides, winds, surface gravity waves and density. The model results will be compared to field measurements collected by the Australian Institute of Marine Science. After the model has been developed and validated, it will be used to investigate processes such as water exchange between lagoons and open sea, effects of contaminant spills and recruitment within the reef systems. An understanding of these processes is essential for the sustainable management of these systems.Read moreRead less
An Australian storm wave damage and beach erosion early warning system. This project aims to develop a new coastal hazard early-warning system capability for Australia, to alert coastal communities, emergency managers and coastal engineers to impending storm wave damage and coastal erosion. Emergency preparedness informed by early warning is expected to significantly benefit vulnerable communities and infrastructure along Australia’s coasts.
MODAL AND DIRECTIONAL CHARACTERISTICS OF SEASTATES AND THEIR IMPACT ON DYNAMICS OF MOORED OFFSHORE SYSTEMS. Under certain conditions a typical sea can becomes bimodal comprising of wind-driven seas and long period swells interacting from two directions. Using a nonlinear model, the occurrence and characteristics of bimodal and bi-directional seastates are quantified.
Low frequency oscillations of a moored offshore structure have profound design influence on the mooring system. A nonlinear res ....MODAL AND DIRECTIONAL CHARACTERISTICS OF SEASTATES AND THEIR IMPACT ON DYNAMICS OF MOORED OFFSHORE SYSTEMS. Under certain conditions a typical sea can becomes bimodal comprising of wind-driven seas and long period swells interacting from two directions. Using a nonlinear model, the occurrence and characteristics of bimodal and bi-directional seastates are quantified.
Low frequency oscillations of a moored offshore structure have profound design influence on the mooring system. A nonlinear response model for a floating vessel in bimodal and bi-directional seastates, will be developed using nonlinear dynamics techniques. The numerical models for the environment and the floating platform will be validated by experiments at the Ocean Basin in Canada.
The project adopts a holistic approach by considering the environment and the moored platform as a complex natural system. With excellent opportunities for technology transfer, the project also benefits from substantial in-kind contributions of the overseas PIs.
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Internal wave energetics, mixing and transport in lakes. The aim of this project is to increase our understanding of the physical processes controlling water quality in lakes. Water supplies world-wide are under increasing pressure from development, usually resulting in decreasing water quality. The biology and chemistry in lakes is controlled primarily by physical processes, and so understanding these processes is crucial to managing water quality in lakes and reservoirs. The outcomes of this p ....Internal wave energetics, mixing and transport in lakes. The aim of this project is to increase our understanding of the physical processes controlling water quality in lakes. Water supplies world-wide are under increasing pressure from development, usually resulting in decreasing water quality. The biology and chemistry in lakes is controlled primarily by physical processes, and so understanding these processes is crucial to managing water quality in lakes and reservoirs. The outcomes of this project will be improved tools for the management of these water resources, as all the research findings will be incorporated into already existing numerical models for lake management.Read moreRead less
Quantifying and parameterising ocean mixing. This project aims to advance our ability to describe the efficiency and intensity of ocean mixing. The project will develop and apply innovative techniques to estimate ocean mixing from both traditional ship-based, vertical-profiling turbulence measurements and from autonomous moorings. The project will undertake a re-analysis of historic measurements and obtain new measurements using autonomous systems. The results will be used to develop both a uni ....Quantifying and parameterising ocean mixing. This project aims to advance our ability to describe the efficiency and intensity of ocean mixing. The project will develop and apply innovative techniques to estimate ocean mixing from both traditional ship-based, vertical-profiling turbulence measurements and from autonomous moorings. The project will undertake a re-analysis of historic measurements and obtain new measurements using autonomous systems. The results will be used to develop both a universal relationship describing the efficiency of ocean mixing, and to quantify the underlying length scale controlling mixing intensity. This will enable the development of the next generation of turbulence closure models needed to describe ocean circulation and stirring.Read moreRead less
Ocean response to tropical cyclone forcing on the Australian North West Shelf. Tropical cyclones are a major hazard for the offshore oil and gas industry. This project will develop the ability to predict the ocean response to tropical cyclones, leading to a paradigm shift in the way industry designs and operates both present and future offshore projects.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE160100027
Funder
Australian Research Council
Funding Amount
$600,000.00
Summary
Australian National Facility for Noble-Gas Radio-Isotope Measurements. Australian national facility for noble-gas radio-isotope measurements:
This facility is designed to provide researchers with the ability to accurately date water and ice cores using the natural radio-isotopes in the sample. Radiocarbon dating has been a revolutionary tool in providing answers to a range of questions in anthropology, archaeology and the earth sciences. However, radiocarbon dating has a strong limitation in th ....Australian National Facility for Noble-Gas Radio-Isotope Measurements. Australian national facility for noble-gas radio-isotope measurements:
This facility is designed to provide researchers with the ability to accurately date water and ice cores using the natural radio-isotopes in the sample. Radiocarbon dating has been a revolutionary tool in providing answers to a range of questions in anthropology, archaeology and the earth sciences. However, radiocarbon dating has a strong limitation in that it can only date periods from 1000–50 000 years: the use of radioactive noble-gas isotopes can extend this range out to 1 year to 1 million years. This capability in the new facility is expected to support new understanding of processes in artesian reservoirs, ocean currents and geology that may affect questions of water availability, climate and environmental change.Read moreRead less
Remote sensing techniques to infer fine-scale ocean surface currents. This project aims to develop new technology for measuring ocean surface currents at unprecedented fine resolution using aerial imagery and theory that describes how surface waves are refracted by currents. The project will generate new knowledge on ocean surface current processes and variability across a range of scales, and critically, improve our understanding of surface current uncertainty through application of advanced st ....Remote sensing techniques to infer fine-scale ocean surface currents. This project aims to develop new technology for measuring ocean surface currents at unprecedented fine resolution using aerial imagery and theory that describes how surface waves are refracted by currents. The project will generate new knowledge on ocean surface current processes and variability across a range of scales, and critically, improve our understanding of surface current uncertainty through application of advanced statistical analysis techniques. The outcomes of this project will deliver Australian capability to leverage the enhanced spatial and temporal resolution of next generation Earth observations to directly benefit search and rescue, offshore industry operations, defence, and pollution response in Australian waters.Read moreRead less
Hydrodynamics of Intermittently Closing and Opening Lakes and Lagoons. Intermittently closing and open lakes and lagoons are shallow coastal water bodies that are connected intermittently to the ocean. Sixty of the 135 estuaries in New South Wales are considered to be ICOLL's. The closure of the Lake/Lagoon entrance to the ocean prevents water exchange that can lead to poor water quality. Detailed field and numerical model studies in two ICOLLS (Coila Lake and Wamberal Lagoon) are proposed us ....Hydrodynamics of Intermittently Closing and Opening Lakes and Lagoons. Intermittently closing and open lakes and lagoons are shallow coastal water bodies that are connected intermittently to the ocean. Sixty of the 135 estuaries in New South Wales are considered to be ICOLL's. The closure of the Lake/Lagoon entrance to the ocean prevents water exchange that can lead to poor water quality. Detailed field and numerical model studies in two ICOLLS (Coila Lake and Wamberal Lagoon) are proposed using modern instrumentation. It is recognised that a fundamental understanding of the circulation and mixing characteristics of ICOLLs is imperative for the development of proper management strategies for these systems.Read moreRead less
Coupled physical and biogeochemical dynamics on the Australian North West Shelf. Information regarding the natural function of the Australian North West Shelf is urgently required to sustainably manage the often conflicting uses of the region. This project will study the role of ocean processes in driving ocean productivity on the North West Shelf and determine the impact of projected climate variability.