Better greenhouse gas budgets: new techniques and applications. The most recent (2001) international assessment strongly confirms the link between global climate change and human-induced changes in atmospheric composition. However, improved knowledge of atmospheric trace gas budgets is essential for better modelling of future climate change and formulation of public policy. We have developed novel techniques for atmospheric trace gas and isoptic analysis that provide new tools for resolving trac ....Better greenhouse gas budgets: new techniques and applications. The most recent (2001) international assessment strongly confirms the link between global climate change and human-induced changes in atmospheric composition. However, improved knowledge of atmospheric trace gas budgets is essential for better modelling of future climate change and formulation of public policy. We have developed novel techniques for atmospheric trace gas and isoptic analysis that provide new tools for resolving trace gas budgets in ways not previously possible. We will apply these tools to improve our understanding of the Australian and global budgets of greenhouse gases, especially nitrous oxide and methane, for which sources still have unacceptably large uncertainties.Read moreRead less
A Generalized Flood Frequency Framework for Prediction of the Effects of Multi-Scale Hydroclimatic Variability. The proposed project aims to investigate the effects of natural, multi-scale variability in climatic inputs, especially precipitation inputs -- intra-annual (seasonal), inter-annual and inter-decadal -- on the estimation of frequency of flooding. It will investigate the propagation of these natural variabilities through the catchment system, through simple models that can enable the e ....A Generalized Flood Frequency Framework for Prediction of the Effects of Multi-Scale Hydroclimatic Variability. The proposed project aims to investigate the effects of natural, multi-scale variability in climatic inputs, especially precipitation inputs -- intra-annual (seasonal), inter-annual and inter-decadal -- on the estimation of frequency of flooding. It will investigate the propagation of these natural variabilities through the catchment system, through simple models that can enable the estimation of probability distributions of soil moisture, runoff generation and flood peaks, and elucidate the underlying process controls. In this way, it will help develop a new framework for the incorporation of these multi-scale variabilities in flood estimation practice in Australia.Read moreRead less