Dr. Keith Schilling is Iowa's Associate State Geologist and is a research scientist for the Iowa Geological Survey, IIHR-Hydroscience and Engineering, at the University of Iowa. His research is in hydrology with interests in surface and groundwater interaction, land use/land cover change, watershed modeling, nutrient fate and transport, sediment erosion and transport, floodplain processes, ecohydrology, time-series analysis, and biogeochemistry.