His expertise is in the science of geomorphology, a discipline within both physical geography and geology focusing on Earth surface processes and landforms. Dr. Royall conducts research on fluvial (river) geomorphology and is particularly interested in human impacts on fluvial sediment budgets and pollution, and general land degradation. He has also conducted research into Pleistocene paleoecology, the study of ecosystem changes during and after the most geologically recent “ice age”. Dr. Royall teaches courses in Earth science, physical geology, general and fluvial geomorphology, and soil science. Dan is an Honors Faculty Fellow.