Liam’s research focuses on the analytical modelling of river systems, with an emphasis on how geological and tectonic constraints shape river profiles and drive landscape evolution. His work investigates river incision and the formation and migration of knickpoints using theoretical frameworks such as the stream power law.

He previously applied analytical modelling to the study of gravitational waves and later to the statistical analysis of earthquakes. Seeking a more tangible connection to geological processes, he is transitioning to geomorphology, where he now studies the geomorphic signatures of tectonic activity. By analysing river profiles and landscape features, his work aims to reconstruct the history of landscape evolution and understand how fluvial systems—particularly in Singapore and the Sunda Shelf region—have responded to tectonic forcing and past sea-level changes, informing predictions of future landscape evolution.