Southern Ocean productivity and carbon dioxide (CO2) exchange under current and future climate regimes. This project will contribute to Australian ocean science expertise in key areas of data synthesis, satellite oceanography and the understanding of marine ecosystems' response to climate change. Collaborations will be developed and strengthened among Australian research institutions, and between Australia and the United States. The focus of the research is the Southern Ocean, which impacts glob ....Southern Ocean productivity and carbon dioxide (CO2) exchange under current and future climate regimes. This project will contribute to Australian ocean science expertise in key areas of data synthesis, satellite oceanography and the understanding of marine ecosystems' response to climate change. Collaborations will be developed and strengthened among Australian research institutions, and between Australia and the United States. The focus of the research is the Southern Ocean, which impacts global climate, and on which Australia's southern coastal ecosystems depend. The expertise and techniques developed will have application to other Australian regional seas.Read moreRead less
Atmospheric CO2, global temperature, and surface ocean acidity response to fossil carbon burning - insights from an ancient analogue. Sequestration of anthropogenic CO2 emissions by the oceans and the impacts of resulting ocean acidification and greenhouse warming upon marine ecosystems are vital to understanding the course of future environmental change. This research will improve knowledge of the biological and chemical responses in the ocean to past changes in atmospheric CO2 levels and incre ....Atmospheric CO2, global temperature, and surface ocean acidity response to fossil carbon burning - insights from an ancient analogue. Sequestration of anthropogenic CO2 emissions by the oceans and the impacts of resulting ocean acidification and greenhouse warming upon marine ecosystems are vital to understanding the course of future environmental change. This research will improve knowledge of the biological and chemical responses in the ocean to past changes in atmospheric CO2 levels and increased ocean acidity. This will assist in predicting the consequences of different fossil fuel burning scenarios for climate and marine life, especially the future viability of organisms like corals, molluscs, and calcareous plankton that underpin key tourism and marine production systems.Read moreRead less
DEEP SEA CORALS AS HIGH RESOLUTION RECORDERS OF SOUTHERN OCEAN NUTRIENT CHEMISTRY AND CIRCULATION. There is compelling evidence that the Earth has been warming dramatically since the end of the 19th century as a consequence of increasing atmospheric CO2. This study aims to understand the long-term role of the Southern Ocean as a 'store-house' for CO2, and its significance in controlling changes in the Earth's climate. We will use coral skeletons from the deep oceans as archives of ocean circu ....DEEP SEA CORALS AS HIGH RESOLUTION RECORDERS OF SOUTHERN OCEAN NUTRIENT CHEMISTRY AND CIRCULATION. There is compelling evidence that the Earth has been warming dramatically since the end of the 19th century as a consequence of increasing atmospheric CO2. This study aims to understand the long-term role of the Southern Ocean as a 'store-house' for CO2, and its significance in controlling changes in the Earth's climate. We will use coral skeletons from the deep oceans as archives of ocean circulation and nutrient levels. This information will help unravel how biological activity in the Southern Ocean has responded during previous episodes of climate change, and how this has controlled the levels of CO2 in the Earth's atmosphere. This will provide a better understanding of greenhouse warming and its effect on our future climate.Read moreRead less
Iron in the Antarctic sea ice zone and its role in the past and future climate. The Antarctic sea ice environment has remained poorly investigated for decades as it is difficult to access. Recent scientific advances have revealed that melting sea ice may provide a significant amount of the plant micro-nutrient iron to the Southern Ocean. Given that polar waters are iron-deficient and seasonal sea ice affects ~14 million square kilometres of ocean, the importance of iron fertilisation from deca ....Iron in the Antarctic sea ice zone and its role in the past and future climate. The Antarctic sea ice environment has remained poorly investigated for decades as it is difficult to access. Recent scientific advances have revealed that melting sea ice may provide a significant amount of the plant micro-nutrient iron to the Southern Ocean. Given that polar waters are iron-deficient and seasonal sea ice affects ~14 million square kilometres of ocean, the importance of iron fertilisation from decaying sea ice and its effect on global climate urgently need to be evaluated. This proposal aims at improving our understanding of Earth's complex system, and will inform future climate change policy in Australia.
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Ocean-reef interactions as drivers of continental shelf productivity in a changing climate. Poor coastal management results in the irreparable destruction of reef systems' function and biodiversity, nationally and globally. To manage marine resources effectively we must implement sustainable practices, including forward planning in the context of climate change. A critical limitation in determining appropriate actions is a poor understanding of mechanisms driving productivity. Our project will p ....Ocean-reef interactions as drivers of continental shelf productivity in a changing climate. Poor coastal management results in the irreparable destruction of reef systems' function and biodiversity, nationally and globally. To manage marine resources effectively we must implement sustainable practices, including forward planning in the context of climate change. A critical limitation in determining appropriate actions is a poor understanding of mechanisms driving productivity. Our project will provide key information on the oceanographic mechanisms supporting Australia's coastal systems, linking nutrient supply, physical drivers and climate. By linking all these factors we will both assist in determining appropriate ecosystem management, and provide a knowledge base to support adaptation to future changes in Australia's climate.Read moreRead less
Large-scale climatic control of coastal erosion and shoreline changes based on long-term survey dataset and video monitoring technology. The Australian coastline is one of this country's greatest natural and economic resources. The asset value of existing coastal infrastructure is immeasurable. From past experiences in Australia and overseas, coastal erosion is a major and growing threat to the long-term sustainability of coastal development and the coastal environment. This research will int ....Large-scale climatic control of coastal erosion and shoreline changes based on long-term survey dataset and video monitoring technology. The Australian coastline is one of this country's greatest natural and economic resources. The asset value of existing coastal infrastructure is immeasurable. From past experiences in Australia and overseas, coastal erosion is a major and growing threat to the long-term sustainability of coastal development and the coastal environment. This research will integrate a unique multi-decade dataset of beach surveys and innovative coastal imaging technology, examining the relationship of shoreline movements to changing climatic signals, to enable better prediction of future shoreline changes. This new understanding will inform and strengthen the skills and capacity of Australia's coastal managers.Read moreRead less
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
Quantifying the role of the Southern Ocean for anthropogenic CO2 uptake. Carbon dioxide (CO2) is the most important greenhouse gas contributing to global warming and climate change. Climate change is likely to have dramatic economic and environmental consequences for Australia. Knowledge and understanding of the complex carbon cycle is fundamental for predicting future atmospheric CO2 levels and managing climate change. The aim of the work proposed here is to quantify and improve our understan ....Quantifying the role of the Southern Ocean for anthropogenic CO2 uptake. Carbon dioxide (CO2) is the most important greenhouse gas contributing to global warming and climate change. Climate change is likely to have dramatic economic and environmental consequences for Australia. Knowledge and understanding of the complex carbon cycle is fundamental for predicting future atmospheric CO2 levels and managing climate change. The aim of the work proposed here is to quantify and improve our understanding of the oceans role in controlling atmospheric CO2 levels. This will be done by combining modeling and observational expertise among UNSW and CSIRO (Marine Research) researchers. Our work will be the first to assess the extent of which the Southern Ocean (and Australian waters) acts as a carbon sink. This will reduce modeling uncertainties in predicting future atmospheric CO2 levels and will also be valuable to the federal government in future international negotiations on climate change.Read moreRead less
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
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989731
Funder
Australian Research Council
Funding Amount
$700,000.00
Summary
Instrumentation for Innovative Marine Biogeochemistry. Rising greenhouse gases are changing the chemistry of the oceans, by altering the availability of nutrients and causing ocean acidification. Along with local pollutants, these changes pose significant threats to the productivity and sustainability of Australia's marine ecosystems. The proposed instrumentation will support world-leading research into the nature, impact, and potential for mitigating these changes. This will underpin our abilit ....Instrumentation for Innovative Marine Biogeochemistry. Rising greenhouse gases are changing the chemistry of the oceans, by altering the availability of nutrients and causing ocean acidification. Along with local pollutants, these changes pose significant threats to the productivity and sustainability of Australia's marine ecosystems. The proposed instrumentation will support world-leading research into the nature, impact, and potential for mitigating these changes. This will underpin our ability to manage and preserve the environmental, societal and economic values of our coastal and open ocean marine resources.Read moreRead less