Lachlan is a coastal scientist and graduate of Civil Engineering and Science (Geophysics and Geography) from the University of Sydney, where he also completed a PhD in coastal geomorphology. His research focuses on coral reef hydrodynamics, morphology, and the interaction between waves and complex reef environments. In particular, his work investigates how morphological features such as coral reef spurs and grooves influence wave transformation, circulation, and energy dissipation, and how these processes may change under future environmental conditions.
His research combines field observations, remote sensing, and numerical modelling, including LiDAR-derived bathymetry, satellite data, wave and current measurements, and hydrodynamic models. This work aims to improve understanding of the coastal protection provided by coral reefs and to inform reef restoration, coastal management, and nature-based approaches to coastal defence. Alongside his research, Lachlan has professional experience in operational wave forecasting and a broader interest in atmospheric and oceanographic processes.
Email: lachlan.perris@sydney.edu.au
Geocoastal Research Group 