A5075800538- Hydrology and Sediment Transport Processes
- Hydrology and Watershed Management Studies
- Geology and Paleoclimatology Research
- Soil erosion and sediment transport
- Geological formations and processes
- Flood Risk Assessment and Management
- Fish Ecology and Management Studies
- Peatlands and Wetlands Ecology
- Tree-ring climate responses
- Coastal and Marine Management
- Aeolian processes and effects
- Ecology and biodiversity studies
- Underwater Vehicles and Communication Systems
- Geophysical and Geoelectrical Methods
- Geochemistry and Geologic Mapping
- Hydrocarbon exploration and reservoir analysis
- Aquatic and Environmental Studies
- Animal and Plant Science Education
- South African History and Culture
- Land Use and Ecosystem Services
- Species Distribution and Climate Change
- Archaeology and Rock Art Studies
Macquarie University
2015-2025
NSW Department of Planning and Environment
2021
Abstract Rivers provide crucial ecosystem services in water-stressed drylands. Australian dryland rivers are geomorphologically diverse, ranging from through-going, single channels to discontinuous, multi-channelled systems, yet we have limited understanding of their sensitivity future hydroclimatic changes. Here, characterise for the first time geomorphology 29 with catchments across a humid arid gradient covering >1,800,000 km 2 continental eastern and central Australia. Statistical...
Abstract Controls on the characteristics of floodplain wetlands in drylands are diverse and may include extrinsic factors such as tectonic activity, lithology climate, intrinsic thresholds channel change. Correct analysis interplay between these controls is important for assessing possible channel–floodplain responses to changing environmental conditions. Using aerial imagery, geological maps field data, this paper investigates wetland Tshwane Pienaars catchments, northern South Africa,...
The Liverpool Plains in northern New South Wales contain some of the best agricultural land Australia and are underlain by extensive smectite clay-dominated soils sourced from weathering alkali basalts Ranges. It had been thought that a relatively simple geological model explained underlying Cenozoic sequence with salt-rich clays Narrabri Formation overlying sands gravel aquifers comprising Gunnedah Formation. Extensive groundwater modelling based upon this conceptualisation has used...
Abstract Palaeochannels of lowland rivers provide a means investigating the sensitivity river response to climate-driven hydrologic change. About 80 palaeochannels lower Macquarie River southeastern Australia record evolution this distributive fluvial system. Six were dated by single-grain optically stimulated luminescence. The largest (Quombothoo, median age 54 ka) was on average 284 m wide, 12 times wider than modern (24 m) and with 21 greater meander wavelength. Palaeo-discharge then...
A key skill that geomorphologists possess is the ability to use multi‐scale perspectives in their interpretations of landscapes. One way gain these with nested hierarchical frameworks. In fluvial geomorphology, such frameworks help assessment large‐scale controls (e.g., tectonic activity, climate change) on pattern and dynamics smaller‐scale physical features channels, floodplains, bars), conversely illustrate how provide building blocks from which make processes over larger spatial temporal...
Abstract Dust plays a globally important role in supplying biologically essential elements to landscapes underlain by nutrient‐poor substrates. Here we show that dust may play significant sustaining productivity the vast wetlands of Okavango Delta southern Africa, one world's richest biodiversity hotspots. accumulates preferentially on tree‐covered islands seasonal swamps Delta, creating pockets fine‐grained, nutrient‐rich material within semi‐arid landscape Kalahari Desert. Strontium and...