Research Dr. Tucker's work focuses on geomorphology and landscape evolution. He uses numerical modeling, field observations, in-situ field monitoring, digital elevation data analysis, and other techniques to improve our understanding of processes that shape the earth. He also works in designing, developing, and testing software for computer simulation and coupled modeling of earth-surface processes, including hydrology, sediment transport, and landscape evolution. His research includes work on present-day geological hazards such as debris flows, floods, and gully network growth, as well as research into the long-term formation of landscapes and sedimentary basins.