Robert J. Ryan, Ph.D.
Assistant Professor , Teaching/Instructional
Civil and Environmental Engineering
Phone: 215-204-3054
Email: rjryan@temple.edu

• Ph.D. in Environmental Engineering, Drexel University, 2004.
• M.E. in Engineering Management, Widener University, 1996.
• B.S. in Environmental Engineering, Pennsylvania State University, 1985.

Research Interests

• Exploring the Hydrologic, Geomorphic and Ecological Connections between Hyporheic Exchange, Sediment Characteristics, and Nutrient Uptake in Urban Watersheds.

Selected Publications

• Ryan, R.J., Boufadel, M.C., 2007, "Lateral and Longitudinal Variation of Hyporheic Exchange in a Piedmont Stream Pool," Environmental Science and Technology, 41, 4221-4226, doi:10.1021/es061603z.

• Ryan, R.J., Packman, A.I., Kilham, S.S., 2007, "Relating Phosphorus Uptake to Changes in Transient Storage and Streambed Sediment Characteristics in Headwater Tributaries of Valley Creek, and Urbanizing Watershed," Journal of Hydrology, 336, 444-457, doi:10.1016/j.jhydrol.2007.01.021.

• Ryan, R.J., Boufadel, M.C., 2006, "Evaluation of Streambed Hydraulic Conductivity Heterogeneity in an Urban Watershed," Stochastic Environmental Research and Risk Assessment, doi:10.1007/s00477-006-0066-1.

• Ryan, R.J., Boufadel, M.C., 2006, "Influence of Streambed Hydraulic Conductivity of Solute Exchange with the Hyporheic Zone," Environmental Geology, 51, 203-210, doi: 10.1007/s00254-006-0319-9.

• Ryan, R.J., Boufadel, M.C., 2006, "incomplete Mixing in a Small Urban Stream," Journal of Environmental Management, 81, 50-57, doi:10.1016/j.jenvman.2005.09.016.

• Ryan, R.J., Packman, A.I., 2006, "Changes in Steambed Sediment Characteristics and Solute Transport in the Headwaters of Valley Creek, an Urbanizing Watershed," Journal of Hydrology, 323, 74-91, doi:10.1016/j.jhydrol.2005.06.042.

• NSF/Hydrologic Science and Environmental Engineering, "Quantifying Urban Groundwater in Environmental Field Observatories: A Missing Link in Understanding How the Build Environment Affects the Hydrologic Cycle."

• Department of Interior, National Park Services, Cooperative Agreement, "Determination of Sediment Erosion and Deposition Rates for Valley Creek in Valley Forge National Historical Park."

• WATER-WASTEWATER SYSTEM DESIGN
• THE ENVIRONMENT
• INTRO TO ENVIRONMENT