Biography

Dr. Robert Ryan is an Associate Professor of Instruction in the Department of Civil and Environmental Engineering at Temple University and a licensed professional engineer in the Commonwealth of Pennsylvania. His research interests are focused on urban stream hydrology and hydraulics with a special interest in hyporheic exchange, riparian corridor/stream channel interactions and stormwater management. Dr Ryan's research has been published in highly regarded peer-reviewed journals.

Research Interests

  • Urban Stream Hydrology & Stormwater Management

Courses Taught

Number

Name

Level

CEE 4623

Contaminant Dynamics in Urban Streams

Undergraduate

CEE 4631

Environmental Hydrology

Undergraduate

CEE 4641

Urban Streams and Stormwater Management

Undergraduate

CEE 4711

Air Pollution Control System

Undergraduate

CEE 5623

Near-Surface Environmental Systems

Graduate

CEE 5623

Contaminant Transport in Urban Streams

Graduate

CEE 5623

Contaminant Dynamics in Urban Streams

Graduate

CEE 5631

Environmental Hydrology

Graduate

CEE 5641

Urban Streams and Stormwater Management

Graduate

CEE 5711

Air Pollution Control

Graduate

ENGR 4169

Engineering Seminar

Undergraduate

ENGR 4171

Senior Design Project I for Industrial and Systems Engineering

Undergraduate

ENGR 4172

Senior Design Project I for Engineering

Undergraduate

ENGR 4173

Senior Design Project I for Environmental Engineering

Undergraduate

ENGR 4174

Senior Design Project I for Bioengineering

Undergraduate

ENGR 4175

Senior Design Project I for Civil Engineering

Undergraduate

ENGR 4176

Senior Design Project I for Electrical Engineering

Undergraduate

ENGR 4177

Senior Design Project I for Mechanical Engineering

Undergraduate

ENGR 4296

Senior Design Project II

Undergraduate

ENGR 4996

Honors Senior Design Project II

Undergraduate

ENVT 0845

The Environment

Undergraduate

Selected Publications

  • Behbahani, A., Ryan, R.J., & McKenzie, E.R. (2021). Impacts of salinity on the dynamics of fine particles and their associated metals during stormwater management. Science of the Total Environment, 777. doi: 10.1016/j.scitotenv.2021.146135

  • Beganskas, S., Ryan, R.J., Walters, E., Soro, M., Cushman, E., & Toran, L. (2021). Coupling PCSWMM and WASP to Evaluate Green Stormwater Infrastructure Impacts to Storm Sediment Loads in an Urban Watershed. Journal of the American Water Resources Association, 57(1), pp. 134-153. doi: 10.1111/1752-1688.12896

  • Flynn, M. & Ryan, R.J. (2021). Assessment of SMP performance under future climate change. World Environmental and Water Resources Congress 2021: Planning a Resilient Future Along America's Freshwaters - Selected Papers from the World Environmental and Water Resources Congress 2021, pp. 302-313. doi: 10.1061/9780784483466.029

  • Behbahani, A., Ryan, R.J., & McKenzie, E.R. (2020). Long-term simulation of potentially toxic elements (PTEs) accumulation and breakthrough in infiltration-based stormwater management practices (SMPs). Journal of Contaminant Hydrology, 234. doi: 10.1016/j.jconhyd.2020.103685

  • Toran, L., Hughes, B., Nyquist, J., & Ryan, R. (2013). Freeze core sampling to validate time-lapse resistivity monitoring of the hyporheic zone. Groundwater, 51(4), pp. 635-640. doi: 10.1111/j.1745-6584.2012.01002.x

  • Toran, L., Nyquist, J.E., Fang, A.C., Ryan, R.J., & Rosenberry, D.O. (2013). Observing lingering hyporheic storage using electrical resistivity: Variations around stream restoration structures, Crabby Creek, PA. Hydrological Processes, 27(10), pp. 1411-1425. doi: 10.1002/hyp.9269

  • Toran, L., Hughes, B., Nyquist, J., & Ryan, R. (2012). Using hydrogeophysics to monitor change in hyporheic flow around stream restoration structures. Environmental and Engineering Geoscience, 18(1), pp. 83-97. doi: 10.2113/gseegeosci.18.1.83

  • Ryan, R.J., Larson, P.C., & Welty, C. (2011). The logistics and mechanics of conducting tracer injection experiments in urban streams. Urban Ecosystems, 14(1), pp. 87-117. doi: 10.1007/s11252-010-0144-5

  • Ryan, R.J., Welty, C., & Larson, P.C. (2010). Variation in surface water-groundwater exchange with land use in an urban stream. Journal of Hydrology, 392(1-2), pp. 1-11. doi: 10.1016/j.jhydrol.2010.06.004

  • Nyquist, J.E., Toran, L., Fang, A.C., Ryan, R.J., & Rosenberry, D.O. (2010). Tracking tracer breakthrough in the hyporheic zone using time-lapse DC resistivity, Crabby Creek, Pennsylvania. Proceedings of the Symposium on the Application of Geophyics to Engineering and Environmental Problems, SAGEEP, 2, pp. 923-929. doi: 10.4133/1.3445534

  • Ryan, R.J. & Boufadel, M.C. (2007). Lateral and longitudinal variation of hyporheic exchange in a piedmont stream pool. Environmental Science and Technology, 41(12), pp. 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, an urbanizing watershed. Journal of Hydrology, 336(3-4), pp. 444-457. doi: 10.1016/j.jhydrol.2007.01.021

  • Ryan, R.J. & Boufadel, M.C. (2007). Evaluation of streambed hydraulic conductivity heterogeneity in an urban watershed. Stochastic Environmental Research and Risk Assessment, 21(4), pp. 309-316. doi: 10.1007/s00477-006-0066-1

  • Ryan, R.J. & Boufadel, M.C. (2006). Influence of streambed hydraulic conductivity on solute exchange with the hyporheic zone. Environmental Geology, 51(2), pp. 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(1), pp. 50-57. doi: 10.1016/j.jenvman.2005.09.016

  • Ryan, R.J. & Packman, A.I. (2006). Changes in streambed sediment characteristics and solute transport in the headwaters of Valley Creek, an urbanizing watershed. Journal of Hydrology, 323(1-4), pp. 74-91. doi: 10.1016/j.jhydrol.2005.06.042

  • Ryan, R.J., Packman, A.I., & Welty, C. (2004). Estimation of solute transport and storage parameters in a stream with anthropogenically produced unsteady flow and industrial bromide input. Water Resources Research, 40(1). doi: 10.1029/2003WR002458