Antonio Arenas Amado


Assistant Professor
Civil, Construction and Environmental Engineering


Town Engr
813 Bissell Rd
Ames, IA 500111066




Dr. Antonio Arenas serves as an assistant professor at Iowa State University (ISU) in the Department of Civil, Construction, and Environmental Engineering. He has participated in a variety of research projects with an emphasis on the application and development of computational models and data analyses to understand and simulate surface-subsurface hydrologic interactions, the long-term effects of land-use changes on watershed hydrology and water quality, fish migratory behavior, spillway hydrodynamics, and total dissolved gas and temperature dynamics at hydropower reservoirs and tailraces. His current research focuses on developing and using fully coupled surface-subsurface watershed models to evaluate flood mitigation strategies and study the fate and transport of nutrients. Before joining ISU, Dr. Arenas worked as an associate research engineer at IIHR Hydroscience & Engineering at the University of Iowa (UI). He has a Ph.D. from UI, received a master’s degree from Universität Stuttgart (University of Stuttgart), and holds a bachelor’s degree from La Escuela Colombiana de Ingenieria.

Research Interests

  • Hydrology and hydraulics
  • Computational modeling
  • Climate change adaptation
  • Nutrient fate and transport
  • Spatial analysis for water resources management


-Schilling, Keith E., Richard J. Langel, Calvin F. Wolter, and Antonio Arenas-Amado.
“Using Baseflow to Quantify Diffuse Groundwater Recharge and Drought at a Regional  Scale.” Journal of Hydrology (2021): 126765.

-Schilling, Keith E., Philip W. Gassman, Antonio Arenas-Amado, Christopher S. Jones,
and Jeff Arnold. “Quantifying the contribution of tile drainage to basin-scale water yield using
analytical and numerical models.” Science of The Total Environment 657 (2019): 297-309.

-Drake, C. W., C. S. Jones, K. E. Schilling, A. Arenas Amado, and L. J. Weber. “Estimating
nitrate-nitrogen retention in a large constructed wetland using high-frequency, continuous
monitoring and hydrologic modeling.” Ecological Engineering 117 (2018): 69-83.

-Arenas, Antonio, Keith Schilling, James Niemeier, and Larry Weber. “Evaluating the
timing and interdependence of hydrologic processes at the watershed scale based on continuously
monitored data.” Water 10, no. 3 (2018): 261.

-Rundhaug, Trevor J., Greg R. Geimer, Chad W. Drake, Antonio Arenas Amado, A. Allen
Bradley, Calvin F. Wolter, and Larry J. Weber. “Agricultural conservation practices in Iowa
watersheds: comparing actual implementation with practice potential.” Environmental monitoring
and assessment 190, no. 11 (2018): 659.

-Weber, Larry J., Marian Muste, A. Allen Bradley, Antonio Arenas Amado, Ibrahim
Demir, Chad W. Drake, Witold F. Krajewski et al. “The Iowa Watersheds Project: Iowa’s prototype
for engaging communities and professionals in watershed hazard mitigation.” International
Journal of River Basin Management 16, no. 3 (2018): 315-328.

-Amado, A. Arenas, K. E. Schilling, C. S. Jones, Nicholas Thomas, and L. J. Weber.
“Estimation of tile drainage contribution to streamflow and nutrient loads at the watershed scale
based on continuously monitored data.” Environmental monitoring and assessment 189, no. 9
(2017): 426.

-Thomas, Nicholas, K. E. Schilling, Antonio Arenas Amado, Matthew Streeter, and Larry
Weber. “Inverse modeling of soil hydraulic properties in a two-layer system and comparisons with
measured soil conditions.” Vadose Zone Journal 16, no. 2 (2017).

-Arenas Amado A., Politano M., Schilling K., Weber Larry. Investigating Hydrologic
Connectivity of a Drained Prairie Pothole Region Wetland Complex Using a Fully Integrated,
Physically-Based Model. Wetlands (2016).

-Thomas, N. W., Arenas, A. A., Schilling, K. E., and Weber, L. J. (2016). “Numerical
investigation of the spatial scale and time dependency of tile drainage contribution to stream flow.”
J Hydrol, 538, 651-666.

-Thomas, N. W., Arenas Amado, A., Schilling, K. E., and Weber, L. J. (2016). “Evaluating
the efficacy of distributed detention structures to reduce downstream flooding under variable
rainfall, antecedent soil, and structural storage conditions.” Adv Water Resour, 96, 74-87.

-Arenas Amado A., Politano M., Weber Larry, Timko Mark. 2015. Analysis of movements
and behavior of smolts swimming in hydropower reservoirs. Ecological Modelling 312 (2015):

-Politano M., Arenas Amado A., Anderson K. 2014. Numerical Modeling of the
Hydrodynamics and Total Dissolved Gas Downstream of Hells Canyon Dam”. Australian Journal
of Water Resources 18.2 (2014): 162.

-Arenas Amado A., Politano M., Weber Larry, Timko Mark. 2014. A Model to Predict
Juvenile Salmon Swim Paths. Hydro Review 33, no. 2.

-Politano M., Arenas Amado A., Bickford S., Murauskas J., Hay D. 2012. Evaluation of
operational strategies to minimize gas supersaturation downstream of a dam. Computers & Fluids.
68(2012): 168-165.

-Politano M., Arenas Amado A., Bickford S., Murauskas J., Hay D. 2011. Investigation
into the Total Dissolved Gas Dynamics of Wells Dam Using a Two-Phase Flow Model. Journal
of Hydraulic Engineering. 137(10): 1257-1268.