Investigating the archaeology of human settlement in the highlands of PNG. Around 50 000 years ago, people crossed the Wallace Line and set foot on Sahul (Pleistocene Australia-New Guinea) for the first time. Rapid dispersal across the Sahul continent followed during a period of climatic deterioration. Subsequent human impacts on the landscape are well preserved in the fossil record, particularly plants. This project aims to implement an archaeological and palaeobotanical approach to investigate ....Investigating the archaeology of human settlement in the highlands of PNG. Around 50 000 years ago, people crossed the Wallace Line and set foot on Sahul (Pleistocene Australia-New Guinea) for the first time. Rapid dispersal across the Sahul continent followed during a period of climatic deterioration. Subsequent human impacts on the landscape are well preserved in the fossil record, particularly plants. This project aims to implement an archaeological and palaeobotanical approach to investigate the temporal and spatial patterning of landscape use through a period of climatic change in the Late Quaternary. The results are expected to provide a fuller understanding of the subsistence strategies and dynamics of human responses to climate change over long time periods.Read moreRead less
Reconstructing changes in atmospheric circulation over the mid-latitudes of the Southern Hemisphere during the past 3000 years. The climate of the mid-latitudes of the southern hemisphere is of global significance and yet past changes have proved difficult to reconstruct due to the dearth of records. Working across the Southern Ocean region using tree rings, lake sediments and ice cores, the project will produce the first comprehensive reconstruction spanning the last 3000 years.
East Asian Monsoon response to periods of abrupt global change. This proposal aims to investigate the response of the East Asian Monsoon to abrupt climatic change, under baseline states of both warm and cool climate. The research is significant as it utilises unique, precisely dated sediments from Japan, and novel approaches to quantifying spatial and temporal climate patterns. The research will improve understanding of the nature and causes of decadal-scale changes in monsoon precipitation, wit ....East Asian Monsoon response to periods of abrupt global change. This proposal aims to investigate the response of the East Asian Monsoon to abrupt climatic change, under baseline states of both warm and cool climate. The research is significant as it utilises unique, precisely dated sediments from Japan, and novel approaches to quantifying spatial and temporal climate patterns. The research will improve understanding of the nature and causes of decadal-scale changes in monsoon precipitation, with relevance for constraining the trajectory of the future monsoon, and the risks of prolonged drought and flood. The findings will benefit the Asian people, for whom the monsoon has major economic, social and environmental importance. In turn, this will benefit Australia, via economic and climatic ties to Asia.Read moreRead less
Palaeo-vegetation, biodiversity and early human dispersal though island Southeast Asia. This study will use newly developed and fully validated isotope techniques to obtain robustly dated proxy records of vegetation change from the thick deposits of cave guano that occur extensively throughout island Southeast Asia (Sundaland). This project will test the hypothesis that during the Last Glacial Period, there was a substantial contraction of the rainforest towards the equator into refugia. This le ....Palaeo-vegetation, biodiversity and early human dispersal though island Southeast Asia. This study will use newly developed and fully validated isotope techniques to obtain robustly dated proxy records of vegetation change from the thick deposits of cave guano that occur extensively throughout island Southeast Asia (Sundaland). This project will test the hypothesis that during the Last Glacial Period, there was a substantial contraction of the rainforest towards the equator into refugia. This led to the development of an open ‘savannah corridor’ connecting savanna north and south of the equator. The project will shed new light on the palaeoclimatology of the region and provide a major contribution to explaining modern biogeographic patterns across Sundaland, as well as the trajectories of early human dispersal through the region.Read moreRead less
Will rivers be smaller when the climate is hotter? This project aims to investigate how large rivers are affected by changing atmospheric temperature. Large inland rivers are the main source of water supporting ecological functions, economies and societies. This project will quantify the size and age of abandoned river channels in the Murray-Darling Basin (MDB) of southeast Australia and the Atuel/Diamante basin of Argentina. We will use this to reconstruct a history of changes in river discharg ....Will rivers be smaller when the climate is hotter? This project aims to investigate how large rivers are affected by changing atmospheric temperature. Large inland rivers are the main source of water supporting ecological functions, economies and societies. This project will quantify the size and age of abandoned river channels in the Murray-Darling Basin (MDB) of southeast Australia and the Atuel/Diamante basin of Argentina. We will use this to reconstruct a history of changes in river discharge and relate this to climate. Novel climate and hydrological modelling will then be used to simulate the impact of temperature changes on catchment runoff and river discharge. Such information is vital for decision-making, planning and water resource allocation in the MDB and elsewhere. Read moreRead less