My research focuses on the physical interactions between climate and water, with a particular interest in the physics and hydrology of lakes and reservoirs. This includes aspects such as climate-induced variations in lake evaporation, water temperature, ice cover, gas fluxes, and water levels. My field-based and modeling work have included studies of the Great Lakes, thermokarst lakes in northern Alaska, saline lakes in western Nebraska, and temperate lakes in Wisconsin and Michigan. More recently I have helped to coordinate a global study of trends in lake surface temperature with partners from the Global Lake Temperature Collaboration (GLTC) and Global Lake Ecological Observatory Network (GLEON
