Ocean Acidification in a Rapidly Increasing CO2 World. Carbon dioxide not only acts as a greenhouse gas but is being dissolved at increasing rates into the surface waters of the world's oceans, causing ocean acidity. We will examine how the rapidly increasing trend towards acidity in the oceans surrounding Australia is effecting the ability of marine organisms to calcify and determine the rate at which the world's ocean sink for CO2 is being reduced. New constraints will be placed on the critica ....Ocean Acidification in a Rapidly Increasing CO2 World. Carbon dioxide not only acts as a greenhouse gas but is being dissolved at increasing rates into the surface waters of the world's oceans, causing ocean acidity. We will examine how the rapidly increasing trend towards acidity in the oceans surrounding Australia is effecting the ability of marine organisms to calcify and determine the rate at which the world's ocean sink for CO2 is being reduced. New constraints will be placed on the critical threshold limits of CO2 emissions for sustainable calcification in both shallow tropical and deep-water marine ecosystems of the Southern Oceans.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE180100087
Funder
Australian Research Council
Funding Amount
$328,075.00
Summary
Internal wave breaking and mixing in the ocean. This project aims to quantify turbulent mixing in the ocean using ultra-high-resolution numerical modelling. Turbulent mixing is caused by internal waves which transport energy from the ocean boundaries into the interior, where they drive mixing of cold, deep water with warmer water above. This mixing is crucial to the ocean circulation which controls the storage of heat and carbon in the ocean, but is inadequately represented in current climate mo ....Internal wave breaking and mixing in the ocean. This project aims to quantify turbulent mixing in the ocean using ultra-high-resolution numerical modelling. Turbulent mixing is caused by internal waves which transport energy from the ocean boundaries into the interior, where they drive mixing of cold, deep water with warmer water above. This mixing is crucial to the ocean circulation which controls the storage of heat and carbon in the ocean, but is inadequately represented in current climate models. The anticipated outcome of the project is an enhanced, global-ocean model incorporating an accurate description of turbulent mixing. This should provide significant benefits to the Australian community by improving the accuracy of future climate predictions.Read moreRead less
Probing the response of Southern Ocean phytoplankton to changes in iron biogeochemistry, light and pH associated with climate change. Determining factors that influence the health and vitality of coastal and open-ocean regions is crucial to maintaining marine biodiversity and the Earth’s climatic balance. This research project will determine the role climate change and ocean acidification will have on the ability of Southern Ocean phytoplankton to flourish.
The stability and predictability of the Southern Hemisphere coupled ocean-atmosphere climate system. Our ability to adapt to and manage the effects of a changing climate is limited by our understanding of the ocean's response to changes in the atmospheric circulation. This project will establish the basis for the predictability of the climate system and provide state-of-the-art forecasts for climate adaptation.
Special Research Initiatives - Grant ID: SR0354683
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
Ocean Discovery Network. The ODN will focus research on Australia's vast marine jurisdiction by:
1. Providing a forum for developing coordinated marine research enterprises in the National Research Priority areas of biodiversity, exploitation of resources, seaway security and climate.
2. Developing innovative international research and providing a mechanism for involvement in international science programs
3. Advancing research capabilities between national and international ocean scientist ....Ocean Discovery Network. The ODN will focus research on Australia's vast marine jurisdiction by:
1. Providing a forum for developing coordinated marine research enterprises in the National Research Priority areas of biodiversity, exploitation of resources, seaway security and climate.
2. Developing innovative international research and providing a mechanism for involvement in international science programs
3. Advancing research capabilities between national and international ocean scientists with web-based data-exchange services and links to global databases
4. Facilitating the transfer of research skills to young investigators
5. Maximising multidisciplinary use of Australian ocean science capacity, particularly the National Facility Research Vessel and the RSV Aurora Australis
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Holding coral reefs together with soluble cement. This project aims to characterise and understand cement formation in coral reefs. Coral reefs are constructed by cementing together aragonite building blocks made by corals. The main cementing agent is high-magnesium calcite, the most soluble carbonate mineral and susceptible to ocean acidification. High-magnesium calcite cements are best developed on the high energy margins of coral reefs. This project will quantify how crustose coralline algae ....Holding coral reefs together with soluble cement. This project aims to characterise and understand cement formation in coral reefs. Coral reefs are constructed by cementing together aragonite building blocks made by corals. The main cementing agent is high-magnesium calcite, the most soluble carbonate mineral and susceptible to ocean acidification. High-magnesium calcite cements are best developed on the high energy margins of coral reefs. This project will quantify how crustose coralline algae produces high-magnesium calcite and controls the dissolution and reprecipitation of high-magnesium cements. This project intends to quantify rates of reef cementation, susceptibility to ocean acidification and warming, and possible mitigating effects of alkalinity addition.Read moreRead less
Sensitivity and Change in the Global Ocean Overturning. The dynamics of the global, deep overturning circulation in the oceans and the way this adjusts to increasing greenhouse forcing will be examined in order to improve our conceptual knowledge of the oceans and the accuracy of climate models. By understanding how the ocean responds to changing surface heat and freshwater fluxes, and particularly the global role of rapid changes in high-latitude seas, we aim to help refine estimates of climate ....Sensitivity and Change in the Global Ocean Overturning. The dynamics of the global, deep overturning circulation in the oceans and the way this adjusts to increasing greenhouse forcing will be examined in order to improve our conceptual knowledge of the oceans and the accuracy of climate models. By understanding how the ocean responds to changing surface heat and freshwater fluxes, and particularly the global role of rapid changes in high-latitude seas, we aim to help refine estimates of climate response times and the warming expected for a given increase in atmospheric greenhouse gases. These two important characteristics of the climate system underlie climate change policy decisions.Read moreRead less
Distribution of ocean heat uptake and its implications for sea level and climate change. Increasing sea levels and ocean temperatures provide critical evidence of long term warming of the climate system. This project will investigate geographical changes in the vertical distribution of heat uptake by the ocean and contribution to sea level changes, including understanding of physical mechanisms and the role of human activity and other natural external and internal factors. The expected outcomes ....Distribution of ocean heat uptake and its implications for sea level and climate change. Increasing sea levels and ocean temperatures provide critical evidence of long term warming of the climate system. This project will investigate geographical changes in the vertical distribution of heat uptake by the ocean and contribution to sea level changes, including understanding of physical mechanisms and the role of human activity and other natural external and internal factors. The expected outcomes will contribute to place more rigorous constraints on the likelihood of future warming and sea level rise projections, and are aligned with scientific deliverables required to address key questions in support of Australia’s climate change policy.Read moreRead less
A Laboratory Study of Ocean-Atmosphere Coupling in the Antarctic Circumpolar Wave. A laboratory model of the southern hemisphere mid-latitude ocean-atmosphere system will be used to investigate the dynamics of ocean-atmosphere coupling contributing to the Antarctic Circumpolar Wave (ACW). The ACW is a recently discovered multi-year climate oscillation which has considerable effect on Australian and New Zealand precipitation. This will be the first laboratory model to include global scale ocean-a ....A Laboratory Study of Ocean-Atmosphere Coupling in the Antarctic Circumpolar Wave. A laboratory model of the southern hemisphere mid-latitude ocean-atmosphere system will be used to investigate the dynamics of ocean-atmosphere coupling contributing to the Antarctic Circumpolar Wave (ACW). The ACW is a recently discovered multi-year climate oscillation which has considerable effect on Australian and New Zealand precipitation. This will be the first laboratory model to include global scale ocean-atmosphere processes, and will be used to test proposed mechanisms for the driving of the climate oscillation that is attributed to the ACW. The project will provide knowledge required for improved computational modelling and climate predictions.
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Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0560956
Funder
Australian Research Council
Funding Amount
$397,100.00
Summary
World-leading elemental and isotopic microanalysis and chemical speciation facilities for an environmentally sustainable Australia. We propose to establish a world-leading centre for the study of the elemental and isotopic composition of key environmental, archaeological and mineral samples. This will be based upon ultra-short wavelength laser ablation and speciation methods, combined with new advanced ICP-MS technologies developed in Australia. This will give the centre unrivalled capabilities ....World-leading elemental and isotopic microanalysis and chemical speciation facilities for an environmentally sustainable Australia. We propose to establish a world-leading centre for the study of the elemental and isotopic composition of key environmental, archaeological and mineral samples. This will be based upon ultra-short wavelength laser ablation and speciation methods, combined with new advanced ICP-MS technologies developed in Australia. This will give the centre unrivalled capabilities and allow new areas of research to be undertaken in global climate change, the impact of increased salinity and pollution on the sustainability of Australia's inland waterways and coastal environments, and the history of the first humans who inhabited Australia. This will provide a baseline and new quantitative measures to better plan for an environmentally sustainable Australia.Read moreRead less