Aondover Tarhule is an associate professor in the Department of Geography and Environmental Sustainability at the University of Oklahoma, Norman, Oklahoma. After receiving his Ph.D. in Geography at McMaster University, Hamilton, Ontario, Canada, he taught briefly at the University of Jos, Nigeria as well as at Queens University, Kingston, Ontario, Canada as holder of the Canadian Science Advisory Council post-doctoral research fellowship. He has wide ranging research interests, including hydroclimatic variability, hydrologic response to climate change, extreme events in hydrology, climate information dissemination and use, and environmental change. Since 2009, Dr. Tarhule has served as Chair in the Department of Geography and Environmental Sustainability at the University of Oklahoma. He is member of several editorial boards, including the Scientific World Journal. He has served as technical program reviewer for the National Oceanic and Atmospheric Administration (NOAA), numerous National Science Foundation (NSF) panel reviews, and consultant on a World Bank climate risk assessment project.