Climate change in the abandonment of islands: a high-resolution case study from the tropical Pacific. Climate change in the last 1000 years is thought to have had negative environmental and societal consequences in the Pacific, particularly in Palau through the occupation and abandonment of limestone islands. This project uses high-resolution data to establish the palaeoclimate and the cultural mechanisms used to cope with climate events.
Discovery Early Career Researcher Award - Grant ID: DE140100089
Funder
Australian Research Council
Funding Amount
$371,151.00
Summary
A new understanding of Antarctic ice melting. Melting of grounded ice in the Antarctic may play a key role in future global sea level rise and Earth's climate system. Ocean-ice interactions governing the rate of melting are not well understood and limited data leads to large uncertainties in the predictions of future melting rates. This project will undertake the first direct numerical simulations examining the complex dynamics of melting of ice-shelves in the presence of convection and turbulen ....A new understanding of Antarctic ice melting. Melting of grounded ice in the Antarctic may play a key role in future global sea level rise and Earth's climate system. Ocean-ice interactions governing the rate of melting are not well understood and limited data leads to large uncertainties in the predictions of future melting rates. This project will undertake the first direct numerical simulations examining the complex dynamics of melting of ice-shelves in the presence of convection and turbulence, while translating the results to improve ocean models. By calculating the sensitivity of melting rate to surrounding ocean conditions, the project will develop the knowledge required to better predict future melting rates.Read moreRead less
Examining the vulnerability of ocean carbon biogeochemistry in a high CO2 world. Rising CO2 levels in the atmosphere from human activity is changing the biogeochemistry of the ocean, with large potential consequences on future atmospheric CO2. This work will explore these changes and will result in a more complete understanding of how the ocean will either accelerate or delay the increase in atmospheric CO2.
Back to the Future: Interglacial Warming and the West Antarctic Ice Sheet . The Antarctic is highly-sensitive to abrupt changes caused by the passing of tipping points within the climate system. Crucially, the instrumental record is too short to resolve major uncertainties surrounding future warming. The Last Interglacial (125,000 yrs ago) was 2°C warmer than today and experienced 6-11 m higher global sea levels. The role of Antarctica is vital for constraining sea-level projections. This Austra ....Back to the Future: Interglacial Warming and the West Antarctic Ice Sheet . The Antarctic is highly-sensitive to abrupt changes caused by the passing of tipping points within the climate system. Crucially, the instrumental record is too short to resolve major uncertainties surrounding future warming. The Last Interglacial (125,000 yrs ago) was 2°C warmer than today and experienced 6-11 m higher global sea levels. The role of Antarctica is vital for constraining sea-level projections. This Australian-led international project aims to determine the mechanisms and impacts of past interglacial Antarctic warming up to 2°C (relative to pre-industrial). Innovative techniques integrating horizontal ice cores and high resolution marine records will help identify polar tipping points and better plan for impacts in Australia.Read moreRead less