Ryan T. Bailey

Ryan T. Bailey is a Professor in the Department of Civil and Environmental Engineering at Colorado State University. His work focuses on watershed management, groundwater hydrology, and environmental systems, with an emphasis on sustainability and numerical modeling.

Education:

• Ph.D., 2012, Colorado State University – Civil and Environmental Engineering
• M.S., 2008, University of Guam – Environmental Science
• B.S., 2006, Brigham Young University – Civil and Environmental Engineering

Ryan's research integrates fieldwork, laboratory studies, and advanced numerical modeling to address critical water resource challenges. Key projects include assessing reactive solute transport in agricultural groundwater systems, evaluating impacts of agricultural dry-up scenarios, and developing coupled watershed-groundwater models like SWAT-MODFLOW and SWAT+ with the gwflow module. His work extends to international contexts, particularly in small oceanic islands such as the Federated States of Micronesia and the Republic of Maldives, where he studies groundwater sustainability during droughts and trains local water managers.

The Groundwater Resources Lab at Colorado State University, led by Ryan, develops open-source tools for hydrologic modeling, including UZF-RT3D, RT3D-OTIS, and SWAT-Salt. These tools facilitate investigations into nutrient cycling, salinity transport, and best-management practices for pollution remediation. His research bridges environmental engineering, climate resilience, and sustainable resource management.

Ryan's contributions include mentoring undergraduate and graduate students, fostering global water security through collaborative projects, and linking watershed and groundwater models to enhance predictive accuracy. His work impacts both academic advancements and practical applications in water-stressed regions.