Is there a climatic tipping point for Antarctic Bottom Water formation? Antarctic Bottom Water plays an important role in global ocean circulation and climate and yet its formation is also highly sensitive to climate change. This project will analyse new seafloor, core and water samples from the understudied Cape Darnley, East Antarctica, collected on a voyage in early 2022. This new data will be used in combination with an improved high resolution regional ocean model, to understand modern and ....Is there a climatic tipping point for Antarctic Bottom Water formation? Antarctic Bottom Water plays an important role in global ocean circulation and climate and yet its formation is also highly sensitive to climate change. This project will analyse new seafloor, core and water samples from the understudied Cape Darnley, East Antarctica, collected on a voyage in early 2022. This new data will be used in combination with an improved high resolution regional ocean model, to understand modern and past Antarctic Bottom Water formation under different climate states (warmer and colder than present), to determine if there are climate tipping points for the shut down of Antarctic Bottom Water formation. The anticipated benefits include a better understanding of future climate change on this important water mass.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE130100663
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Understanding the termination of El Nino-Southern Oscillation events. Australia's climate is extreme, with significant drought and flooding events driven by cycles of the El Nino-Southern Oscillation (ENSO). This study will improve our understanding of the termination of ENSO events and lead to better inter-seasonal climate forecasting, aiding the sectors reliant on accurate climate prediction.
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
Multiphase flow and transport in complex coastal wetland systems. Salt marshes play an essential role in maintaining Australia's coastal bio-diversity. They also function as barriers to fluxes of terrestrial pollutants to our coastal sea. Australia has a large number of salt marshes listed by the Ramsar Convention as coastal wetlands of international importance but many of them are subject to loss and degradation due to competing land uses. This project, examining in detail the flow and transpor ....Multiphase flow and transport in complex coastal wetland systems. Salt marshes play an essential role in maintaining Australia's coastal bio-diversity. They also function as barriers to fluxes of terrestrial pollutants to our coastal sea. Australia has a large number of salt marshes listed by the Ramsar Convention as coastal wetlands of international importance but many of them are subject to loss and degradation due to competing land uses. This project, examining in detail the flow and transport processes in marsh soils, will lead to (1) better understanding of the marsh's response to anthropogenic stress; and (2) improvement of strategies and methods for marsh wetland preservation and restoration.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
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.
Bluebottle dynamics: towards a prediction tool for Surf Life Saving Aust. Many Australians have had a painful bluebottle sting, yet little is known about bluebottles and what brings them to the coast. This project will shed new light on bluebottle dynamics, pathways, and distribution of the beachings. We will use an innovative combination of lab work, ocean surveys, statistical and hydrodynamic modelling to fill knowledge gaps and ultimately provide the framework for prediction.
In partnership w ....Bluebottle dynamics: towards a prediction tool for Surf Life Saving Aust. Many Australians have had a painful bluebottle sting, yet little is known about bluebottles and what brings them to the coast. This project will shed new light on bluebottle dynamics, pathways, and distribution of the beachings. We will use an innovative combination of lab work, ocean surveys, statistical and hydrodynamic modelling to fill knowledge gaps and ultimately provide the framework for prediction.
In partnership with Surf Life Saving Australia (SLSA), we will develop the first bluebottle risk prediction tool for our popular beaches.
Forewarned is forearmed. Forecasts will help mitigate bluebottle stings, lessen their public health burden, while having broad benefits for coastal communities.
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Limits to ocean surface temperature in future climates. This project aims to investigate whether ocean surface temperatures can increase beyond the 35 degree centigrade threshold for the survival of humans and many other mammal species. Climate models predict that ocean surface temperatures will exceed 35 degree centigrade in parts of the middle east and throughout much of South East Asia in as little as 50 years. This project will use a series of laboratory experiments to test whether parts of ....Limits to ocean surface temperature in future climates. This project aims to investigate whether ocean surface temperatures can increase beyond the 35 degree centigrade threshold for the survival of humans and many other mammal species. Climate models predict that ocean surface temperatures will exceed 35 degree centigrade in parts of the middle east and throughout much of South East Asia in as little as 50 years. This project will use a series of laboratory experiments to test whether parts of the ocean surface can be warmed beyond this limit under natural conditions. Expected outcomes of this project are a new understanding of what sets the maximum surface temperature of the ocean, thereby allowing us to determine whether coastal regions of the humid tropics and sub-tropics will remain habitable for humans and other mammal species in the near future.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.
ARC Centres of Excellence for Climate System Science. Our capacity to assess the threat of climate change is undermined by an unacceptable level of uncertainty in the understanding and modelling of regional climates. The Centre will undertake world-class research targeting identified weaknesses in the physical, chemical and biological components of the climate system. We will engage and nurture graduate students and postdoctoral follows through a program of graduate training and mentoring to per ....ARC Centres of Excellence for Climate System Science. Our capacity to assess the threat of climate change is undermined by an unacceptable level of uncertainty in the understanding and modelling of regional climates. The Centre will undertake world-class research targeting identified weaknesses in the physical, chemical and biological components of the climate system. We will engage and nurture graduate students and postdoctoral follows through a program of graduate training and mentoring to permanently transform our understanding of climate systems science particularly for the Australian region. The key outcome will be a dramatic enhancement in national capacity to understand and project the scale of future regional climate change.Read moreRead less