A5074718865- Ocean Waves and Remote Sensing
- Climate variability and models
- Oceanographic and Atmospheric Processes
- Radar Systems and Signal Processing
- Tropical and Extratropical Cyclones Research
- Geology and Paleoclimatology Research
- Hydrology and Watershed Management Studies
- Coral and Marine Ecosystems Studies
- Meteorological Phenomena and Simulations
- Flood Risk Assessment and Management
- Hydrology and Drought Analysis
- Groundwater and Isotope Geochemistry
- Paleontology and Stratigraphy of Fossils
- Soil Moisture and Remote Sensing
- Isotope Analysis in Ecology
- Mine drainage and remediation techniques
- Marine Biology and Ecology Research
- Ocean Acidification Effects and Responses
- demographic modeling and climate adaptation
- Marine and coastal ecosystems
- Marine Ecology and Invasive Species
- Hydrology and Sediment Transport Processes
- Soil and Water Nutrient Dynamics
- Underwater Acoustics Research
- Geophysics and Gravity Measurements
James Cook University
2006-2023
Townsville Hospital
2018-2023
AIMS@JCU
2013
A recurrent interpretation of ancient climate based on the oxygen isotopic composition marine carbonates and cherts suggests that Earth's was substantially warmer in distant past remained so until as recently 400 Myr ago. This is difficult to reconcile with long-term glacial record, evidence for modest weathering rates during most history, biomarker fossil eukaryotes even vertebrates at times anomalously low δ18O values, predicted faintness young Sun. We argue here, following earlier...
Tropical cyclones (TCs) are an important water source in many regions around the world, replenishing local dams, waterways and groundwater systems. Three diverse precipitation datasets were tested for dissimilarities their rainfall characteristics via a new, freely available tracking toolbox MATLAB GNU Octave users: 1) ERA5 global reanalysis, 2) Global Historical Climatology Network (GHCN)-Daily station dataset 3) regional SILO (Scientific Information Land Owners) database. Although only...
Abstract HF radar data are often collected for time periods that optimized current measurement applications where, in many cases, very high temporal resolution is needed. Previous work has demonstrated this does not provide sufficient averaging robust wave measurements to be made. It was shown improvements could made by the longer periods. provides over space as well time, so there also possibility average space. However, correlated because of range and azimuth processing. The implications...
The impact of waves on the environment (e.g. erosion) and industries (incl. shipping tourism) can be very significant. Here, we are presenting analysis coastal wave data in southern Great Barrier Reef (GBR), Australia, using a combination observational (HF radar) numerical model (WaveWatch3). modeled significant height fields compare reasonably well with those obtained from radar stations, inducing confidence two datasets. radar-produced spatially more variable compared to results, linked...
The worldwide deployment of Argo floats has enabled much more detailed studies global and regional seas over the last decade. Here, seasonal variability mixed layer depth (MLD) within Coral Sea was examined with CTD profiles from floats. Multiple threshold values for both temperature density have been employed to determine most suitable Sea. A value 0.04 kg/m3 0.2°C appear fitting this region. Although MLD isothermal (ILD) coincide quite well in cases, relatively common presence temporary,...
Abstract East coast cyclones (ECCs) provide an essential reprieve from dry periods across eastern Australia. They also deliver flood‐producing rains with significant economic, social and environmental impacts. Assessing comparing the influence of different types is hindered by incomplete understanding ECC typology, given their widely variable spatial temporal characteristics. This study employs a track‐clustering method (probabilistic, curve‐aligned regression model) to identify key cyclonic...
For Australia, there are only a few east coast low (ECL) databases that have been generated to explore aspects of ECL development, movement and subsequent impacts. Improved include track data will enhance future forecasting damage mitigation on the Australia. This paper compares characteristics new low-pressure dataset, NCEP1 (1950–2019), recently updated MATCHES (Maps Tables Climate Hazards Eastern Seaboard) database (1950–2019) in order identify similarities differences may be important...
A brief description of three different platforms (WAVEWATCH III, Acoustic Doppler Current Profiler mooring and HF ocean radar) with directional wave measurement capabilities is provided. Initial results wind patterns derived from observations within the southern Great Barrier Reef, Australia, show consistency WAVEWATCH III model. These early findings are promising for future wind-wave investigations validation studies in this region.