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
Measuring the flushing time of waters in the Great Barrier Reef. There are concerns both in the scientific community and in the general public about the possible implications of agricultural runoff to the Great Barrier Reef (GBR). Due to this, the Great Barrier Reef Marine Park Authority has developed a "Reef Water Quality Protection Plan" (RWQPP) which may have significant economic implications to the grazing, sugar, and other primary industries. In order to protect the GBR, whilst also minimiz ....Measuring the flushing time of waters in the Great Barrier Reef. There are concerns both in the scientific community and in the general public about the possible implications of agricultural runoff to the Great Barrier Reef (GBR). Due to this, the Great Barrier Reef Marine Park Authority has developed a "Reef Water Quality Protection Plan" (RWQPP) which may have significant economic implications to the grazing, sugar, and other primary industries. In order to protect the GBR, whilst also minimizing the impacts on agricultural industries, it is important to understand the processes that affect the buildup and broad-scale dispersion of contaminants in the GBR. This project will facilitate that understanding.Read moreRead less
Contribution of surf zone wind stress to storm surge inundation. In the present era of climate change, storm surge forecasting is becoming an increasingly important part of disaster management planning. The responsible state and national agencies require accurate forecasting tools in order to best safeguard communities and plan infrastructure. Storm surges result from low pressure atmospheric conditions and wind forces on the ocean. However, the wind forces on the surf zone are unknown, with the ....Contribution of surf zone wind stress to storm surge inundation. In the present era of climate change, storm surge forecasting is becoming an increasingly important part of disaster management planning. The responsible state and national agencies require accurate forecasting tools in order to best safeguard communities and plan infrastructure. Storm surges result from low pressure atmospheric conditions and wind forces on the ocean. However, the wind forces on the surf zone are unknown, with the result that inaccurate warnings are issued to communities. This project will lead to significant improvements in forecast accuracy by providing this missing data and by developing new models for the surf zone wind forcing. Read moreRead less
Wave Climate in the Southern Great Barrier Reef. Sea surface roughness has a major influence on global climate modelling. This project will provide a better understanding of the variability of sea waves in coastal waters. New technology of HF ocean radar can map wave fields over coastal waters and thus fill a gap between the open ocean satellite measurements and the point measurements from wave buoys. In this project we will improve the analysis of the radar echoes to produce sea wave spectra, a ....Wave Climate in the Southern Great Barrier Reef. Sea surface roughness has a major influence on global climate modelling. This project will provide a better understanding of the variability of sea waves in coastal waters. New technology of HF ocean radar can map wave fields over coastal waters and thus fill a gap between the open ocean satellite measurements and the point measurements from wave buoys. In this project we will improve the analysis of the radar echoes to produce sea wave spectra, and evaluate focussing of waves by complex currents on the continental shelf to help improve wave forecasting in coastal waters. The HF radar will be used to experimentally test current theories of wind wave spreading.Read moreRead less
Next-generation ocean current forecasting to improve maritime safety . This project aims to measure upper ocean currents at scales of 10-100 km in Australia's marine estate using pioneering satellite radar technology. The Surface Water and Ocean Topography (SWOT) mission will map currents at 10 times the resolution of present-day satellites and revolutionise our understanding of ocean dynamics. Expected outcomes include validation of SWOT data in Australian waters and merging this data into Bure ....Next-generation ocean current forecasting to improve maritime safety . This project aims to measure upper ocean currents at scales of 10-100 km in Australia's marine estate using pioneering satellite radar technology. The Surface Water and Ocean Topography (SWOT) mission will map currents at 10 times the resolution of present-day satellites and revolutionise our understanding of ocean dynamics. Expected outcomes include validation of SWOT data in Australian waters and merging this data into Bureau of Meteorology ocean models. Downstream benefits include improved ocean forecasts for maritime safety, search-and-rescue, spill modelling, and marine conservation. At the same time, the project will build sovereign capability in emerging remote sensing technology with a legacy beyond the life of the SWOT mission.Read moreRead less
Coupling tropical cyclone and climate physics with ocean waves. It is argued that without accounting for the wave effects directly, the physics of large-scale air-sea interactions is inaccurate and incomplete. The project will introduce explicit coupling of large-scale atmospheric and oceanic phenomena with the physics of surface waves which should lead to improved predictions of tropical cyclones and climate.
IMPACTS OF RIVER NUTRIENTS ON THE GREAT BARRIER REEF LAGOON. While salinity was one of the first properties of the ocean to be studied, it is one of the last to be measured by remote sensing. A prototype air borne salinity mapper will be used in this project along with an airborne multi-spectral sampler to develop a new approach to the study of river plumes. The salinity and nutrient densities will be traced to determine the destination of river runoff. Outcomes will assist the management of ....IMPACTS OF RIVER NUTRIENTS ON THE GREAT BARRIER REEF LAGOON. While salinity was one of the first properties of the ocean to be studied, it is one of the last to be measured by remote sensing. A prototype air borne salinity mapper will be used in this project along with an airborne multi-spectral sampler to develop a new approach to the study of river plumes. The salinity and nutrient densities will be traced to determine the destination of river runoff. Outcomes will assist the management of the Great Barrier Reef Marine Park and land management near the coast, and will improve our understanding of the carbon sink in coastal waters.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0560892
Funder
Australian Research Council
Funding Amount
$284,232.00
Summary
HF Radar Facility for Oceanography in the Great Barrier Reef. HF radar is becoming a dominant tool, globally, for monitoring surface features in coastal waters. A facility will be installed in the southern section of the Great Barrier Reef to monitor currents and waves on a continuous basis in support of an international study of coral bleaching. The facility will also be used to support the development of satellite remote sensing tools for monitoring the ocean on the continental shelf. HF ra ....HF Radar Facility for Oceanography in the Great Barrier Reef. HF radar is becoming a dominant tool, globally, for monitoring surface features in coastal waters. A facility will be installed in the southern section of the Great Barrier Reef to monitor currents and waves on a continuous basis in support of an international study of coral bleaching. The facility will also be used to support the development of satellite remote sensing tools for monitoring the ocean on the continental shelf. HF radar technology is relatively new and this facility offers Australian scientists the opportunity to retain their leading role in the world. The HF radar may be used for ship surveillance, for security and for environmental management in coastal waters.Read moreRead less
Effects of uptake of carbon and nutrients (nitrogen, phosphorous and silicon) on pH among phytoplankton species: implications for ocean acidification feedback mechanisms. Anthropogenic CO2 emission has caused a decrease in the ocean pH, which may affect coral reefs. The project will study two processes, as the feedback mechanisms, which can increase pH in seawater, uptake of additional CO2 by algae directly and stimulated by the human input of nitrogen and phosphorus.
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.