Dr. Deas' professional experience is focused in the field of water quality monitoring, modeling, and analysis. As a consultant and researcher, he has continued to apply his education to a wide range of water resources problems including surface flow, temperature, and water quality assessments; formulating conceptual models and identifying the interactions between aquatic system elements; developing and applying analytical tools as well as complex numerical models to evaluate flow and the fate and transport of physical and chemical constituents in aquatic systems; and providing technical consultation.