Greg Tucker is a Professor of Geological Sciences and a Fellow of the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder. Dr. Tucker’s work focuses on geomorphology and landscape evolution. His research team 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. His Computational Geomorphology Group also works in designing, developing, and testing software for computer simulation and coupled modeling of earth-surface processes, including hydrology, landsliding, sediment transport, and landscape evolution. The research includes work on present-day geological hazards such as debris flows, floods, and gully network growth, as well as investigation of long-term evolution of landscapes and sedimentary basins. Since 2017, Tucker has served as Executive Director of the Community Surface Dynamics Modeling System (CSDMS: https://csdms.colorado.edu).