Our Publications

Our full list of publications is accessible on our Google Scholar webpage, which you can visit by clicking here. Below, you'll find a list of our publications, although it may not be current.

Books

  1. Leon, A. S. (2009). “Improved Modeling of Transient Flows in Storm-sewer Systems. Theory and Applications”, ISBN 978-3-639-15213-5, VDM Verlag Dr. Müller, Germany.
  2. Leon, A. S. (2000) “Local scour around cylindrical piers in non-cohesive beds (In Spanish)”, Distribuidora Lopez G., Lima, Peru.
  3. Leon, A. S., and Coronado F.  (1998) “The hydraulic design of a bottom rack-type intake in supercritical regime (In Spanish)”, W. H. Editores S.R. Ltda., Lima, Peru.

Book Chapter

  1. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2007). “An efficient finite-volume scheme for modeling water hammer flows.''  Contemporary Modeling of Urban Water Systems, Monograph 15, W. James (Editor in Chief).
  2. Leon, A. S., Oberg N., Schmidt, A. R., and García, M. H. (2011). “The Illinois Transient Model. A state-of-the-art model for simulating the flow dynamics in combined storm-sewer systems”. Urban Water Systems, Monograph 19.

Journal (Refereed) Papers

  1. Mahyawansi, P., Zanje, S. R., Sharifi, A., McDaniel, D., & Leon, A. S. (2024). Experimental and numerical investigation of a small scale storm sewer geyser. Journal of Hydraulic Research, 62(1), 25-38.
  2. Yin, Z., Saadati, Y., Hu, B., Leon, A. S., Amini, M. H., & McDaniel, D. (2024). Fast high-fidelity flood inundation map generation by super-resolution techniques. Journal of Hydroinformatics, 26(1), 319-336.
  3. Yin, Z., Saadati, Y., Leon, A. S., Amini, M. H., Bian, L., & Hu, B. (2024). Forecasting and optimization for minimizing combined sewer overflows using Machine learning frameworks and its inversion techniques. Journal of Hydrology, 628, 130515.
  4. Hu, B., Yin, Z., Hamrani, A., Leon, A. S., & McDaniel, D. (2024). Super-resolution-assisted rapid high-fidelity CFD modeling of data centers. Building and Environment, 247, 111036.
  5. Shi, J., Yin, Z., Myana, R., Ishtiaq, K., John, A., Obeysekera, J., Leon, A. S. and Narasimhan, G.  (2023). Deep learning models for water stage predictions in south florida. arXiv preprint arXiv:2306.15907.
  6. Chen, D., Leon, A. S., Li, R. and Han, R. (2023). Evaluation of schemes for reservoir operation: from rule-curve to many-objective optimization, Water Management, XXX, 1-30. https://www.icevirtuallibrary.com/doi/10.1680/jwama.21.00022a.
  7. Qin L., Yang D-S, Weng Y-N, Leon, A. S., Shi X-H (2023). Tunnel safety: A pilot study investigating drivers’ fixation characteristics when approaching tunnel entrance at different driving speeds. Lighting Research & Technology. 2023;55(2):155-169. https://doi.org/10.1177/14771535221100261.
  8. Qin, L.; He, S.; Yang, D.; Leon, A. S. (2022). Proposal for a Calculation Model of Perceived Luminance in Road Tunnel Interior Environment: A Case Study of a Tunnel in China. Photonics 2022, 9, 870. https://doi.org/10.3390/photonics9110870
  9. Maleki, H., Safaei, M. R., Leon, A. S., Muhammad, T., Nguyen, T. K. (2022). Improving shipboard electronics cooling system by optimizing the heat sinks configuration, Journal of Ocean Engineering and Science, https://doi.org/10.1016/j.joes.2021.09.013.
  10. Zanje, S. R., Bian, L., Verma, V., Yin, Z., and Leon, A. S. (June 15, 2022). "Siphon Break Phenomena Associated With Pipe Leakage Location." ASME. J. Fluids Eng. November 2022; 144(11): 111202. https://doi.org/10.1115/1.4054654
  11. Yin, Z., Matus, M., Zisis, I., Leon, A. S. (2022). Numerical Investigation on the Wind-Excited Dynamic Response of Span-Wire Traffic Signal System, Fluid Mechanics. Volume 8, Issue 1, June 2022, pp. 16-26. doi:10.11648/j.fm.20220801.12
  12. Troxler, T.G., Amy C. Clement, Yoca Arditi-Rocha, Gretchen Beesing, Mahadev Bhat, Jessica Bolson, Carissa Cabán-Alemán, Karina Castillo, Olivia Collins, Mayra Cruz, Alan Dodd, Scotney D. Evans, Abigail L. Fleming, Carlos Genatios, Jane Gilbert, Alyssa Hernandez, Cheryl Holder, Maria Ilcheva, Elizabeth Kelly, Arturo S. Leon, Joanna Lombard, Katharine J. Mach, Diana Moanga, James F. Murley, Amy Knowles, Jayantha Obeysekera, Loren Parra, Jennifer Posner, Arif Sarwat, Rachel Silverstein, John A. Stuart, Michael C. Sukop, Shimon Wdowinski and Elizabeth Wheaton (2021). A System for Resilience Learning: Developing a Community-Driven, Multi-Sector Research Approach for Greater Preparedness and Resilience to Long-Term Climate Stressors and Extreme Events in the Miami Metropolitan Region. Journal of Extreme Events 08(03). Available at: http://dx.doi.org/10.1142/s2345737621500196.
  13. Leon, A. S., Bian, L. and Tang Y.  (2021). Comparison of the genetic algorithm and pattern search methods for forecasting optimal flow releases in a multi-storage system for flood control. Environmental Modelling & Software 145, November 2021, 105198. [see PDF]
  14. Bian, L.; Melesse, A. M.; Leon, A. S.; Verma, V.; Yin, Z. (2021). A Deterministic Topographic Wetland Index Based on LiDAR-Derived DEM for Delineating Open-Water Wetlands. Water, 13, 2487.
  15. Qin, L.; Peña-García, A.; Leon, A. S.; Yu, J.-C. (2021). Comparative Study of Energy Savings for Various Control Strategies in the Tunnel Lighting System. Appl. Sci. 2021, 11, 6372. https://doi.org/10.3390/app11146372.
  16. Qin, L., Cao, Q-L., Leon, A. S., Weng, Y-N., Shi, X-H. (2021). "Use of Pupil Area and Fixation Maps to Evaluate Visual Behavior of Drivers inside Tunnels at Different Luminance Levels—A Pilot Study"  Appl. Sci.11, no. 11: 5014. https://doi.org/10.3390/app11115014.
  17. Chen, Y., Gibson, N., Biswas, A., Li, A., Bashiri, H., Sharifi, E., Fuentes, C., Hoyle, C., Leon, A. S., Skypeck, C.J. (2021). “Valuation of operational flexibility: A case study of Bonneville power administration.” Energy Economics, 98, 105251. https://www.sciencedirect.com/science/article/pii/S0140988321001560#!
  18. Hosseini, P., Gibson, N., Chen, D., Leon, A. S. (2021). “Flexible Decision Variables in Multi-Objective Reservoir Operation.” International Journal of Computer Mathematics, DOI: 1080/00207160.2021.1894418.
  19. Chegini, T. and Leon, A. S. (2020). Numerical investigation of field-scale geysers in a vertical shaft. Journal of Hydraulic Research, 58(3), 503-515.   [see PDF]
  20. Tang, Y., Leon, A. S., Kavvas, M. L. (2020). Impact of Size and Location of Wetlands on Watershed-Scale Flood Control. Water Resour Manage 34, 1693–1707.   [see PDF]
  21. Tang, Y., Leon, A. S., Kavvas, M. L. (2020). Impact of Dynamic Storage Management of Wetlands and Shallow Ponds on Watershed-scale Flood Control. Water Resour Manage 34, 1305–1318.   [see PDF]
  22. Leon, A. S., Tang, Y., Qin, L., and Chen, D. (2020). A MATLAB framework for forecasting optimal flow releases in a multi-storage system for flood control. Environmental Modelling & Software 125, March 2020, 104618.   [see PDF]
  23. Qin, L., Shi, X., Leon, A. S., Tong, C., Ding, C. (2020). Dynamic luminance tuning method for tunnel lighting based on data mining of real-time traffic flow, Building and Environment, 176, 106844, https://doi.org/10.1016/j.buildenv.2020.106844.
  24. Dadsetani, R.; Sheikhzadeh, G. A.; Safaei, M. R.; Leon, A. S.; Goodarzi, M. (2020). Cooling Enhancement and Stress Reduction Optimization of Disk-Shaped Electronic Components Using Nanofluids. Symmetry, 12, 931.
  25. Mehrdad, S., Dadsetani, R., Amiriyoon, A., Leon, A.S., Reza Safaei, M., Goodarzi, M. (2020) Exergo-Economic Optimization of Organic Rankine Cycle for Saving of Thermal Energy in a Sample Power Plant by Using of Strength Pareto Evolutionary Algorithm II. Processes 2020, 8, 264.
  26. Qin, L., Shi, X., and Leon, A. S. (2020). Luminance calculation method accounting for mesopic vision and fog penetration ability. Applied Optics, 59(3).   [see PDF]
  27. Qin, L., Leon, A. S., Bian, L., Dong, L., Verma, V., and Yolcu, A. (2019). A remotely-operated siphon system for water release from wetlands and shallow ponds.  IEEE Access, 7, 157680-157687.   [see PDF]
  28. Sarafraz, M. M., Dareh Baghi, A., Safaei, M. R., Leon, A. S., Ghomashchi, R., Goodarzi, M., Lin, C-X. (2019). Assessment of Iron Oxide (III)–Therminol 66 Nanofluid as a Novel Working Fluid in a Convective Radiator Heating System for Buildings. Energies, 12(22), 4327.
  29. Sarafraz, M. M., Safaei, M. R., Leon, A. S., Khaled, U., Goodarzi, M., and Meer, R. (2019). Energetic analysis of different configurations of power plants connected to liquid chemical looping gasification. Processes, 7(10), 763.
  30. Sarafraz, M. M., Safaei, M. R., Leon, A. S., Tlili, I., Alkanhal, T.A., Tian, Z., Goodarzi, M., and Arjomandi, M. (2019). Experimental Investigation on Thermal Performance of a PV/T-PCM (Photovoltaic/Thermal) System Cooling with a PCM and Nanofluid. Energies, 12, 2572.
  31. Leon, A. S. (2019), Elayeb I. S., Tang, Y. (2019). An experimental study on violent geysers in vertical pipes. Journal of Hydraulic Research, 57(3), 283-294.   [see PDF]
  32. Leon, A. S. (2019). Mechanisms that lead to violent geysers in vertical shafts. Journal of Hydraulic Research, 57(3), 295-306.   [see PDF].
  33. Chen, D., Leon, A. S., Chen, Q., and Li, R. (2018). A derivative-free hybrid optimization model for short-term operation of a multi-objective reservoir system under uncertainty, Water Resources Management, 32(11), 3707-3721.   [see PDF] 
  34. Qin, L., Dong, L. L., Xu, W. H, Zhang L. D, and Leon, A. S. (2018). Influence of Vehicle Speed on the Characteristics of Driver’s Eye Movement at a Highway Tunnel Entrance during Day and Night Conditions: A Pilot Study, Int. J. Environ. Res. Public Health, 15(4), 656. E-print: here.
  35. Leon A. S., Tang, Y., Chen, D., Yolcu A., Glennie, C., Pennings, S. C. (2018). Dynamic Management of Water Storage for Flood Control in a Wetland System: A Case Study in Texas, Water, 10, 325. [see PDF] 
  36. Chen, D., Leon, A. S., Fuentes, C., Gibson, N. L., and Qin, H.  (2017). Incorporating filters in random search obroalgorithms for the hourly operation of a multi-reservoir system, ASCE Journal of Water Resources Planning and Management. 144(2). [see PDF] 
  37. Qin, L., Dong, L. L., Xu, W. H, and Leon, A. S. (2017). An intelligent luminance control method for tunnel lighting based on traffic volume, Sustainability, 9(12), 2208. E-print: here.
  38. Sharifi, E., Bashiri, H., Leon, A. S., Chen, Y., Gibson, N. (2017). “Valuation of flexibility for optimal reservoir operation.” Open Water Journal, 14(2), Article 5.
  39. Bashiri, H., Sharifi, E., Leon, A. S., Chen, Y., Gibson, N. (2017). “Quantification of Short-term Hydropower Generation Flexibility.” Open Water Journal, 14(2), Article 6.
  40. Chen, D., Leon, A. S., Engle, S. P., Fuentes, C., and Chen, Q. (2017). “Offline training for improving online performance of a genetic algorithm based optimization model for hourly multi-reservoir operation.” Environmental Modelling and Software, 96, 46-57. E-print: [see PDF] 
  41. Chen, D., Leon, A. S., Hosseini, P., Gibson, N., and Fuentes, C.  (2017) “Application of Cluster Analysis for Finding Operational Patterns of Multireservoir System during Transition Period.” ASCE Journal of Water Resources Planning and Management. 143(8). [see PDF] 
  42. Leon, A. S. and Gifford-Miears, C. H., (2017) “Evaluation of the PG Method for Modeling Unsteady flows in Complex Bathymetries.” IAHR Journal of Applied Water Engineering and Research, 6(2), 139-149. [see PDF]
  43. Oberg N., Schmidt, A. R., Landry, B. J., Leon, A. S., Waratuke, A. R.,  Mier,  J. M. and García, M. H. (2017) “Improved understanding of combined sewer systems using the Illinois Conveyance Analysis Program (ICAP).” Urban Water Journal, 14(8), 811-819. [see PDF]
  44. Leon, A. S. and Goodell C. (2016) .“Controlling HEC-RAS using MATLAB” Journal of Environmental Modelling and Software, 84, 339–348. [see PDF]
  45. Chen, D., Chen, Q., Leon, A. S., and Li, R. (2016). “A Genetic Algorithm Parallel Strategy for Optimizing the Operation of Reservoirs with Multiple Eco-environmental Objectives” Water Resources Management, 30(7), 2127–2142. DOI: 10.1007/s11269-016-1274-1 [see PDF]
  46. Chen, D., Leon, A. S., Gibson, N., and Hosseini, P. (2016) “Dimension reduction of decision variables for multireservoir operation: A spectral optimization model.” Water Resources Research, 52(1), 36–51. DOI: 10.1002/2015WR017756. [see PDF]
  47. Leon, A. S. (2016). “Mathematical models for quantifying eruption velocity in degassing pipes based on exsolution of a single gas and simultaneous exsolution of multiple gases” Journal of Volcanology and Geothermal Research, 323, 72–79. [see PDF]
  48. Lowe, R. J., Leon, A. S., Symonds, G., Falter, J. L., Gruber, R. (2015). “The intertidal hydraulics of tide-dominated reef platforms.” Journal of Geophysical Research - Oceans,  120(7), 4845–4868. [see PDF]
  49. Nania,  L. S., Leon, A. S.,  and Garcia, M. H. (2015). “Hydrologic-Hydraulic Model for Simulating Dual Drainage and Flooding in Urban Areas: Application to a Catchment in the Metropolitan Area of Chicago.” ASCE Journal of Hydrological Engineering, 20(5), 04014071-1 – 04014071-13. [see PDF]
  50. Leon, A. S., Zhu, L. (2014). “A dimensional analysis for determining optimal discharge and penstock diameter in impulse and reaction water turbines.” Renewable Energy, 71, 609–615. [see PDF]
  51. Gibson, N. L., Gifford-Miears, C., Leon, A. S., Vasylkivska, V. S. (2014). “Efficient computation of unsteady flow in complex river systems with uncertain inputs.” International Journal of Computer Mathematics, 91(4), 781-797. DOI: 10.1080/00207160.2013.854336 [see PDF]
  52. Leon, A. S., Kanashiro, E. A., Valverde, R., and Sridhar V. (2014) “Dynamic Framework for Intelligent Control of River Flooding - Case Study.” ASCE Journal of Water Resources Planning and Management, 140(2), 258-268. [see PDF]
  53. Leon A. S., Kanashiro E. A., and Gonzalez-Castro J. A. (2013), “Fast Approach for Unsteady Flow Routing in Complex River Networks Based on Performance Graphs”, ASCE Journal of Hydraulic Engineering, 139(3), 284–295. [see PDF]
  54. Leon, A. S. and Gifford-Miears, C. H. and Choi, Y. (2013) “Well-balanced scheme for modeling open-channel and surcharged flows in steep-slope closed conduit systems.” ASCE Journal of Hydraulic Engineering, 139(4), 374–384. [see PDF]
  55. Leon, A. S., Oberg N., Schmidt, A. R., and García, M. H. (2011). “The Illinois Transient Model. A state-of-the-art model for simulating the flow dynamics in combined storm-sewer systems”. Urban Water Systems, Monograph 19. [see PDF]
  56. Nania, L. S., Gómez, M., Dolz, J. and León, A. S. (2010). Discussion of Experimental and numerical modelling of symmetrical four-branch supercritical cross junction flow. IAHR Journal of Hydraulic Research, 48(6), 826-828. [see PDF]
  57. Leon, A. S., and Ghidaoui, M. S. (2010) Closure to Discussion of “Application of Godunov-type schemes to transient mixed flows.” IAHR Journal of Hydraulic Research, 48(5), 688-689. [see PDF]
  58. Leon, A. S., Liu, X., Ghidaoui, M. S., Schmidt, A. R., and Garcia, M. H. (2010) “Junction and drop-shaft boundary conditions for modeling free-surface, pressurized, and mixed free-surface pressurized transient flows.” ASCE Journal of Hydraulic Engineering, 136(10), 705-715. [see PDF]
  59. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R. and Garcia, M. H. (2010) “A robust two-equation model for transient mixed flows.” IAHR Journal of Hydraulic Research, 48(1), 44-56. [see PDF]
  60. Leon, A. S., Ghidaoui, M.S. (2010). Discussion of “Numerical oscillations in pipe-filling bore predictions by shock-capturing models” by J. G. Vasconcelos, S. J. Wright, and P. L. Roe. ASCE J. Hydraulic Engng., 136(6), 392-393. [see PDF]
  61. Leon, A. S., Nania, L. S. and Sridhar, V. (2010). Discussion of “Potential Dangers of Simplifying Combined Sewer Hydrologic/Hydraulic Models” by J. P. Cantone and A. R. Schmidt. ASCE J. Hydrological. Engng., 15, 587-588. [see PDF]
  62. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R. and Garcia, M. H. (2009) “Application of Godunov-type schemes to transient mixed flows.” IAHR Journal of Hydraulic Research, 47(2), 147-156. [see PDF]
  63. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R. and Garcia, M. H. (2008) “An efficient second-order accurate shock-capturing scheme for modeling one and two-phase water hammer flows.”  ASCE Journal of Hydraulic Engineering, 134(7), 970-983. [see PDF]
  64. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2007). “An efficient finite-volume scheme for modeling water hammer flows.''  Contemporary Modeling of Urban Water Systems, Monograph 15, W. James (Editor in Chief).
  65. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R. and Garcia, M. H. (2006) “Godunov-type solutions for transient flows in sewers”.  ASCE Journal of Hydraulic Engineering, 132(8), 800-813. [see PDF]

Peer-Reviewed Conference Proceedings

  1. Bian, L., Verma, V., Yin, Z., Campbell W., and Leon, A. S. (2023). An Integrated Framework for Automatic Flood Mitigation at the Watershed Scale. In Proceedings of 2023 International Low Impact Development Conference, 58-66, Oklahoma City, OK, August 6-9, 2023.
  2. Yin, Z., Leon, A. S., Sharifi, A., Amini, M. H. (2023). “Optimal Control of Combined Sewer Systems to Minimize Sewer Overflows by Using Reinforcement Learning.” In Proceedings of 2023 ASCE-EWRI World Environmental & Water Resource Congress, 711-722, Henderson, NV, May 21-25, 2023.
  3. Yin, Z., Bian, L., Hu, B., Shi, J., Leon, A. S. (2023). “Physic-Informed Neural Network Approach Coupled with Boundary Conditions for Solving 1D Steady Shallow Water Equations for Riverine System.” In Proceedings of 2023 ASCE-EWRI World Environmental & Water Resource Congress, 280-288, Henderson, NV, May 21-25, 2023.
  4. Campbell, W. H., Savant, G., Leon, A. S., Bian, L. (2023). “Applying HEC-RAS to Simulate the Complex Tidal Conditions for Estuaries and Bays: A Case Study of the San Francisco Bay.” In Proceedings of 2023 ASCE-EWRI World Environmental & Water Resource Congress, 185-193, Henderson, NV, May 21-25, 2023.
  5. Mahyawansi, P., Lin, C-X, Leon, A. S. (2022). Understanding the Influence of Pressure Disturbance on the Transition of Stratified to Slug Flow. 7th Thermal and Fluids Engineering Conference (TFEC), 947-957, Las Vegas, NV, May 15-18, 2022.
  6. Verma, V., Bian, L., Leon, A. S. (2022). “A Remotely Operated Software Defined Radio Based Framework to Release Water from a Network of Storage Units.” In proceedings of 2022 ASCE-EWRI World Environmental & Water Resource Congress, 8-15, Atlanta, GA, June 5–8, 2022.
  7. Campbell, W. H., Savant, G., Leon, A. S., Bian, L. (2022). “Applying HEC-RAS to Simulate the Complex Tidal Conditions for Estuaries and Bays: A Case Study of the Cook Inlet in Alaska.” In proceedings of 2022 ASCE-EWRI World Environmental & Water Resource Congress, 232-243, Atlanta, GA, June 5–8, 2022.
  8. Zanje, S. R., Verma, V., Bian, L., Yin, Z., Leon, A. S. (2022). “Impact of Pipe Leakage Location on Siphon Flow Breakage.” In proceedings of 2022 ASCE-EWRI World Environmental & Water Resource Congress, 1211-1220, Atlanta, GA, June 5–8, 2022.
  9. Verma, V., Bian, L., Leon, A. S. (2022). “A Remotely Operated Framework Based on Internet of Things (IoT) Technology to Release Water from Ponded Systems.” In proceedings of 2022 ASCE-EWRI World Environmental & Water Resource Congress, 1-7, Atlanta, GA, June 5–8, 2022.
  10. Bian, L., Yin, Z., Verma, V., Campbell, W. H., Leon, A. S., Melesse, A. M. (2022). “Estimating the Potential Wetland Storage Capacity for Flood Mitigation by Using Deterministic Topographic Wetland Index.” In proceedings of 2022 ASCE-EWRI World Environmental & Water Resource Congress, 1252-1263, Atlanta, GA, June 5–8, 2022.
  11. Mahyawansi, P., Zanje, S. R., Lin, C-X, Leon, A. S.  (2022). “An Affordable PIV Technique for Water Using Potato Starch with Diode Laser and Smartphones.” In proceedings of 2022 ASCE-EWRI World Environmental & Water Resource Congress, 390-399, Atlanta, GA, June 5–8, 2022.
  12. Yin Z., Zahedi, L., Leon, A. S., Hamini, M. H., Bian, L. (2022). “A Machine Learning Framework for Overflow Prediction in Combined Sewer Systems.” In proceedings of 2022 ASCE-EWRI World Environmental & Water Resource Congress, 194-205, Atlanta, GA, June 5–8, 2022.
  13. Zanje, S. R., Mahyawansi, P., Leon, A. S., Lin, C-X. (2022). “CFD Modeling of Storm Sewer Geysers in Partially Filled Dropshafts.” In proceedings of 2022 ASCE-EWRI World Environmental & Water Resource Congress, 1187-1195, Atlanta, GA, June 5–8, 2022.
  14. Verma, V., Bian L., Ozecik, D., Sirigineedi, S.S. and Leon, A. S. (2021). Internet-Enabled Remotely Controlled Architecture to Release Water from Storage Units. World Environmental and Water Resources Congress 2021, 586-592.
  15. Bian L., Verma, V., Li, J., Zanje, S. R., Vento, A., Filgueiras, L., Ozecik, D., Leon, A. S., et al. (2021). A Feasibility Study on Harvesting Rainwater from Large Solar Panel Canopies to Supplement Makeup Water for Cooling Towers by Using Remotely Controlled and Self-Cleaning Rain Cistern. World Environmental and Water Resources Congress 2021, 1118-1134.
  16. Bian L., Verma, V., Rojali, A., Ozecik, D. and Leon, A. S. (2021). Operational Reliability Assessment of a Remotely Controlled Siphon System for Draining Shallow Storage Ponds. World Environmental and Water Resources Congress 2021, 607-620.
  17. Ying J., Qin L., Cao, Q., and Leon, A. S. (2021). Autonomous control and monitoring of on-site in-network storage systems in remote environments to mitigate floods, Proceedings of the Fifteenth International Conference on Management Science and Engineering Management, Vol. 1. 1st ed. 2022. 
  18. Verma, V., Vutukuru K. S., Bian L., Rojali, A., Ozecik, D., and Leon, A. S. (2020). Reliability and Robustness Evaluation of a Remotely Operated Siphon System for Flood Mitigation during Hurricanes. World Environmental and Water Resources Congress 2020: Emerging and Innovative Technologies and International Perspectives, 31-39. https://ascelibrary.org/doi/abs/10.1061/9780784482940.004
  19. Verma, V., Bian L., Rojali, A., Ozecik, D., and Leon, A. S. (2020). A Remotely Controlled Framework for Gravity-Driven Water Release in Shallow and Not Shallow Storage Ponds. World Environmental and Water Resources Congress 2020: Emerging and Innovative Technologies and International Perspectives, 12-22. https://ascelibrary.org/doi/abs/10.1061/9780784482940.002
  20. Leon, A. S. and Zanje S. (2019). “Experiments and Numerical Modeling of Field-scale geysers in stormsewer systems.” In proceedings of the 38th IAHR World Congress, 3370-3379, Panama City, Panama, September 1-6, 2019. [see PDF]
  21. Leon, A. S. (2019). “ Upper Limit Velocity of Geyser Eruptions in Stormwater and Combined Sewer Systems.” In proceedings of 2019 ASCE-EWRI World Environmental & Water Resource Congress, 122-128, Pittsburgh, PA, May 19-23, 2019.
  22. Leon, A. S. and Verma, V.  (2019). “Towards Smart and Green Flood Control: Remote and Optimal Operation of Control Structures in a Network of Storage Systems for Mitigating Floods.” In proceedings of 2019 ASCE-EWRI World Environmental & Water Resource Congress, 177-189, Pittsburgh, PA, May 19-23, 2019.
  23. Kang D., Kim J., Verma, V., Leon, A. S. and Kang, B. (2019). “Evaluation of urban inundation under changing landuse - Application of EPA SWMM-LID to Andong city in South Korea.” In proceedings of 2019 ASCE-EWRI World Environmental & Water Resource Congress, 83-88, Pittsburgh, PA, May 19-23, 2019.
  24. Vasconcelos, J. and Leon, A. S. (2019). “Evaluation of mathematical model alternatives for the simulation of unsteady, two-phase flows in urban water systems.” In proceedings of 2019 ASCE-EWRI World Environmental & Water Resource Congress, 99-108, Pittsburgh, PA, May 19-23, 2019.
  25. Maleki, H., Reza, M. S., Leon, A. S. and Khang, T. N. (2019). “Thermal and hydraulic performance of longitudinal perforated rectangular fins with perforation shape and size variations”, In proceedings of 4th Thermal and Fluids Engineering Conference, (TFEC), TFEC-2019-27962, 1-8, Las Vegas, NV, April 14–17, 2019.  [see PDF]
  26. Chegini, T., Phan, M. K., and Leon, A. S. (2018). “Comparison of Various Turbulence Models for Violent Geysers in Vertical Pipes.” In proceedings of 2018 ASCE-EWRI World Environmental & Water Resource Congress, 99-108, Minneapolis, MN, June 3-7, 2018. This paper won the third place in graduate student technical paper competition.
  27. Leon, A. S. (2017). “Mechanisms that lead to the occurrence of violent geysers in storm water and combined sewer systems.” In Proceedings of 37th IAHR World Congress, Vol. 1, pp. 5821-5830, Kuala Lumpur, Malaysia,  August 13-18, 2017.
  28. Leon, A. S. (2016). “Determining Optimal Discharge and Optimal Penstock Diameter in Water Turbines.” In B. Crookston & B. Tullis (Eds.), Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June (pp. 332-342).  doi:10.15142/T390628160853 (ISBN 978-1-884575-75-4).
  29. Leon, A. S. and Alnahit, A. O. (2016). “A Remotely Controlled Siphon System for Dynamic Water Storage Management.” In B. Crookston & B. Tullis (Eds.), Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June (pp. 1-11). doi:10.15142/T3690628160853 (ISBN 978-1-884575-75-4). 
  30. Choi, Y., Leon, A. S., and Apte, S. (2016). “A One-Dimensional Numerical Model to Predict Pressure and Velocity Oscillations of a Compressed Air Pocket in a Vertical Shaft Filled with Water.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 202-211, West Palm Beach, FL, May 22-26, 2016 (contributed text and discussion). 
  31. Leon, A. S. (2016). “New Evidence on the Causes of Explosives Geysers in Stormwater and Combined Sewer Systems: A Simplified Model for the Prediction of These Geysers.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 224-233, West Palm Beach, FL, May 22-26, 2016.  *
  32. Chen, D., Leon, A. S., and Hosseini P. (2016).“Patterns of Optimal Operational Schemes for the Short-Term Operation of a Multi-Reservoir System with Shifting Objectives.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 428-437, West Palm Beach, FL, May 22-26, 2016 (contributed text and discussion).  †
  33. Choi, Y., Leon, A. S., Apte, S. (2014). “Three-dimensional Numerical Modeling of Air-water Geyser Flows.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 1535-1548, Portland OR, June 1-5, 2014 (provided significant text and discussion).
  34. Chen, D., Leon, A. S., Hosseini P. (2014). “Optimizing Short-term Operation of a Multi-reservoir System During Transition of Objectives and Constraints.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 1093- 1105, Portland OR, June 1-5, 2014 (provided significant text and discussion).
  35. Gomez, L. A., Lee, H. W., and Leon, A. S.  (2014). “A real options-based framework to evaluate investments in river flood control under uncertainty.” In proceedings of Second International Conference on Vulnerability and Risk Analysis and Management (ICVRAM) and the Sixth International Symposium on Uncertainty, Modeling, and Analysis (ISUMA), 1465-1474, Liverpool, UK, July 13-16, 2014.
  36. Leon, A. S., Valverde, R., and Gonzalez-Castro, J. A. (2012). “A robust, numerically efficient model for unsteady flow routing in topologically complex river networks.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 1119-1128, Albuquerque, New Mexico, May 20-24, 2012.
  37. Leon, A. S., Kanashiro E. A., Gichamo, T. Z., Valverde, R., and Gifford-Miears, C. H. (2012). “Towards the intelligent control of river flooding.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 1687-1696, Albuquerque, New Mexico, May 20-24, 2012.
  38. Bernedo, C. E., Julien, P., Leon, A. S. (2011). “Dam Breach Analysis in Tailings Storage Facilities (TSF)” In Proceedings of the ASCE-EWRI World Environmental and Water Resources Congress, 2216-2224, Palm Springs, CA, May 2011
  39. Leon, A. S., Kanashiro E.A. (2010). “A New Coupled Optimization-Hydraulic Routing Model for Real-Time Operation of Regulated River Systems”, In Proceedings of Watershed Management, 213-224, ASCE-EWRI, August 23-27, 2010, Madison, Wisconsin.
  40. Leon, A. S., Choi, N. J., Schmidt, A. R., and García, M. H. (2010). “Flow Dynamics in Combined Storm-Sewer Systems: Application of the Illinois Transient Model (ITM) to the Calumet TARP System in Chicago, Illinois.” In Proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 3703-3717, Providence, Rhode Island, May 16-20, 2010.
  41. Leon, A. S., Liu, X. Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2009). “Boundary Conditions for Simulating Complex Storm-sewer Systems in Free Surface, Pressurized, and Mixed Flow Conditions.” In Proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 5557-5567, Kansas City, Missouri, 2009
  42. Leon, A. S., Nanía, L. S., Schmidt, A. R., and García, M. H. (2009). “A Robust And Fast Model For Simulating Street Flooding.” In Proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 5364-5373, Kansas City, Missouri, 2009.
  43. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2008). “A Shock-capturing Approach for Simulating Gravity Flows, Pressurized Flows and the Simultaneous Occurrence of Gravity and Pressurized Flows.” In Proceedings of 10th International Conference on Pressure Surges, 489-502, BHR Group, 14-16 May, 2008, Edinburgh, United Kingdom.
  44. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2008). “A finite volume model for mixed free surface-pressurized flows in drainage systems.” In Proceedings of World Water and Environmental Resources Congress, CD-ROM Edition (10 pages), Hawaii, USA, May 13-16, 2008.
  45. Leon, A. S., Cataño-Lopera, Y. A., Liu, X., Schmidt, A. R., and García, M. H. (2008). “Experimental and CFD modeling of a vortex flow restrictor.” In Proceedings of World Water and Environmental Resources Congress, CD-ROM Edition (10 pages), Hawaii, USA, May 13-16, 2008. [see PDF]
  46. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2007). “Godunov-type solutions for two-phase water hammer flows.” In Proceedings of Fifth International Symposium on Environmental Hydraulics, CD-ROM Edition (7 pages), Tempe, Arizona, USA. Dec.  4-7, 2007. [see PDF]
  47. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R. and Garcia, M. H. (2006) “An efficient numerical scheme for the modeling of two-phase bubbly homogeneous air-water mixtures”. In Proceedings of World Environmental & Water Resources Congress, CD-ROM Edition, P32 (10 pages),  Nebraska, 2006. [see PDF]
  48. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2005). “Importance of numerical efficiency for real time control of transient gravity flows in sewers.” In Proceedings of XXXI IAHR Congress, 1106-1115, Seoul, Korea. [see PDF]
  49. Schmidt, A. R., Ghidaoui, M. S., Leon, A. S., and García, M. H. (2005). “Review of sewer surcharging phenomena and models.” In Proceedings of XXXI IAHR Congress, 257-258, Seoul, Korea.

Non-Refereed Conference Proceedings

  1. Bian, L., Verma, V., Yin, Z., Leon, A. S. and Campbell W. (2023). Applying a Remotely Controlled and Self-operated Gate on Flood Mitigation at the Watershed Scale. Presented in the 2023 International Low Impact Development Conference, Oklahoma City, OK, August 6-9, 2023.
  2. Pennings, S.C., Hockaday, A., Patterson, K., Leon, A. S. (2023). Freshwater wetlands for flood control: how manipulating the hydroperiod affects plant and invertebrate communities. Virtual presentation made at River Webinar, Management and Restoration of Eco-environment – The role of Land-Water Ecotone, April 20, 2023.
  3. Zanje, S.R., Gutierrez, G., Campbell, W., …, Leon, A. S., Bogosian, B., et al. (2022). Resilient MAST@FIU: Adapting the FIU MAST for Living with Coastal Waters Under Extreme Events. Available at https://www.epa.gov/system/files/documents/2022-05/d27-project-narrative%20508_0.pdf.
  4. Bian, L., Verma, V., Yin, Z., Leon, A. S., Melesse A. M. (2021). “A Cell Size Sensitivity Study on the Accuracy of Wetland Delineation by Using Deterministic Topographic Wetland Index.” AGU Fall Meeting Abstracts, New Orleans, LA, December 13-17, 2021.
  5. Vasconcelos, J.G., Karney, B., and Leon, A.S. (2021). An Investigation on the Causes and Solutions for Operational Issues in Urban Water Systems Linked to Two-Phase Flows, EWRI CURRENTS, Volume 23, Number 3, Summer 2021. https://www.paperturn-view.com/ewri/spring-2021?pid=NjY66181&p=7&v=18.7
  6. Bian, L., Verma, V., Zanje, S.R., Yin, Z., Design, G.I., Hernandez, J., Loayza, A., Filgueiras, I.V.L.A., Diez, D.S., Leon, A. S., Bogosian, B., et al. (2021). Smart Eco-Water Use: Towards a Climate-Resilient Campus. Available at https://www.epa.gov/sites/default/files/2021-04/documents/d01-project_narrative.pdf.
  7. Verma, V., Lozada, A., Bian, L., …, Leon, A. S. and Ozer, E. (2020). Coastal Eco-Waters: Adapting for a Resilient Campus. Available at https://www.epa.gov/sites/default/files/2020-04/documents/m11-project_narrative.pdf.
  8. Henao, S.M., Malagon, A., Raubenolt, R., Hogan, A., Verma, V., Leon, A. S., Colasacco, A.A., Solomon, S. and Fuentes, H.R. (2019). EcoFLow: Sustainable and Smart Stormwater Solutions for Future Generations of South Florida. Available at https://www.epa.gov/sites/default/files/2019-04/documents/m31-project_narrative_508.pdf.
  9. Verma V. and Leon, A. S. (2019). “Low-cost hardware for remote operation of siphons and outlet gates in a network of storage systems for mitigating floods,” Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Pittsburgh, PA, May 19-23, 2019.
  10. Leon, A. S. and Tang, Y. (2019). “Decision Support System for the remote and optimal operation of control structures in a network of storage systems for mitigating floods,” Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Pittsburgh, PA, May 19-23, 2019.
  11. Chegini, T., Phan, M. K., and Leon, A. S. (2018). “Numerical Investigation of a Retrofitting Method for Minimizing Violent Geysers in Sewer Systems” Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Minneapolis, MN, June 3-7, 2018.
  12. Leon, A. S. and Chegini, T. (2018). “Chain mechanisms preceding and during violent geysers in sewer systems” Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Minneapolis, MN, June 3-7, 2018.
  13. Chegini, T., Ma, T., Phan, M. K., and Leon, A. S. (2018). “Techniques for Increasing Computational Efficiency in the modeling of Violent Geysers”, Presented in The 8th International Symposium on Environmental Hydraulics, Notre Dame, IN, June 4-7, 2018.
  14. Leon, A. S. and Chegini, T. (2018). “Physical mechanisms preceding and during violent geysers in sewer systems”, Presented in The 8th International Symposium on Environmental Hydraulics, Notre Dame, IN, June 4-7, 2018.
  15. Bashiri, H., Sharifi, E., Leon, A. S., and Gibson, N. (2018). “Optimization of Reservoir Operation using Uncertain Forecasts”, Presented in the Sustainable Water Management Conference, Seattle, WA, March 25-28, 2018.
  16. Sharifi, E., Bashiri, H., Leon, A. S., and Gibson, N. (2018). “Stochastic Modeling of Operational Flexibility for a Reservoir System”, Presented in the Sustainable Water Management Conference, Seattle, WA, March 25-28, 2018.
  17. Sharifi, E., Chen, Y., Gibson, N., Bashiri, H., Leon, A. S., (2018). “A Spread Pricing Option Model for Optimal Operation of Hydropower Systems.” Presented in the 2018 ASCE-EWRI World Environmental & Water Resource Congress, Minneapolis, MN, June 3-7, 2018 (contributed text and discussion).
  18. Bashiri, H., Sharifi, E., Leon, A. S., Gibson, N. and Chen, Y. (2017). “Toward Quantification and Valuation of Flexibility for Hydropower Reservoir Systems.” Presented in the 2017 AGU Fall Meeting, New Orleans, LA, December 11-15, 2017. 
  19. Leon, A. S. (2017). “Dynamic management of water storage of wetlands and shallow ponds for flood control” Presented in the 37th IAHR World Congress, Kuala Lumpur, Malaysia, August 13-18, 2017 (primary author). *  
  20. Sharifi, E., Bashiri, H., Leon, A. S., Chen, Y., Gibson, N. (2017). “Valuation of flexibility for optimal reservoir operation.” Presented in the 2017 CUAHSI Conference on Hydroinformatics, Tuscalosa, AL, July 25-27, 2017 (contributed text and discussion). 
  21. Bashiri, H., Sharifi, E., Leon, A. S., Chen, Y., Gibson, N. (2017). “Quantification of Short-term Hydropower Generation Flexibility.” Presented in the 2017 CUAHSI Conference on Hydroinformatics, Tuscalosa, AL, July 25-27, 2017 (contributed text and discussion).
  22. Gibson, N., Leon, A. S. and Hosseini P. (2017). “Flexible decision variables in reservoir operation using dimension reduction approach”, Presented in the 2017 SIAM Conference on Optimization, Vancouver, British Columbia, Canada, May 22-25, 2017.
  23. Leon, A. S. (2017). “Why Violent Geysers Occur in Stormwater and Combined Sewer Systems?” Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Sacramento, CA, May 21-25, 2017. 
  24. Chen, D., Leon, A. S., Gibson, N. L., and Vasylkivska, V. S. (2014). “Using a Concurrent Hybrid Method to Optimize Short-Term Operation of a Multi-Reservoir System with Multiple Objectives”. In Proceedings of the 11th International Conference on Hydroinformatics HIC 2014, New York City, NY, August 17-21, 2014.
  25. Hosseini P., Chen, D., Leon, A. S., Gibson, N., Hoyle C. (2014). “A Multi-objective Robust Optimization Framework for the Operation of Multi-reservoir Systems”, Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Portland OR, June 1-5, 2014.
  26. Leon, A. S., Hosseini P. (2014). “Effects of Small Tidal-type Waves on Rating Curves in Rivers”, Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Portland OR, June 1-5, 2014.
  27. Leon, A. S., Zhu L. (2014). “A Dimensional Analysis for Determining Optimal Discharge and Optimal Penstock Diameter in Impulse and Reaction Water Turbines”, Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Portland OR, June 1-5, 2014.
  28. Gomez, L., and Leon, A. S. (2014). “Investment Time for Flood Control Under Uncertainty: A Real Options-Based Framework”. 2014 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 12, 2014.
  29. Gibson, N., Gomez, L., Leon, A. S., and Vasylkivska, V. (2014). “A Domain Decomposition Method for Unsteady Flow Routing in Complex River Systems”. 16th SIAM Conference on Parallel Processing for Scientific Computing, Portland OR, February 18-21, 2014.   
  30. Leon, A. S., Gifford-Miears, C., and Gibson, N., Hoyle, C. (2013). “Development of a State-of-the-Art Computational Framework for the Optimal Control of Multi-Reservoir Systems Under Uncertainty”, Presented in the 2013 AWRA Annual Water Resources Conference, Portland OR, November 4-7, 2013.
  31. Chen, D., Leon, A. S., Chen, Q. and Li, R. (2013). “Pareto-Optimal Solutions and Operational Strategies for a Multi-Objective Reservoir with Ecological and Environmental Purposes: A Case Study of Qingshitan Reservoir”, Presented in the 2013 AWRA Annual Water Resources Conference, Portland OR, November 4-7, 2013.
  32. Leon, A. S., Gifford-Miears C., and Gibson N. (2013). “A Framework for Propagation of Uncertainty in River Systems”, Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Cincinnati OH, May 19-22, 2013
  33. Alam M., and Leon, A. S. (2013). “Upper Limit of Extractable Hydropower”. 2013 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 13, 2013
  34. Choi, Y., and Leon, A. S. (2013). “Towards Predicting the occurrence of geysers and CSOs in combined sewer systems - An experimental, theoretical and numerical approach”. 2013 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 13, 2013
  35. Choi, Y., Leon, A. S. (2012). “Towards predicting the occurrence of geysers and CSOs in combined sewer systems - an experimental, theoretical and numerical approach.” Presented in the 2012 Sustainable Stormwater Symposium, Portland, Oregon, September 19-20, 2012.
  36. Bernedo, C. E., Salas, J., and Leon, A. S. (2012). “Challenges of safe and sound designs: Hydrologic design criteria in areas affected by El Niño phenomenon… Can conventional hydrology be applied?” In proceedings of the 2012 Dam Safety Conference, Association of State Dam Safety Officials, Denver, CO., September 16-21, 2012.
  37. Leon, A. S., Gibson, N. L., and Gifford-Miears, C. H. (2012). “Toward reduction of uncertainty in complex multi-reservoir river systems.” In proceedings of the XIX International Conference on Computational Methods in Water Resources (CMWR), University of Illinois at Urbana-Champaign, Urbana, Illinois, June 17-21, 2012.
  38. Leon, A. S., Kanashiro, E. A., Gichamo, T. Z., and Valverde, R. (2012). “Towards the intelligent control of river flooding. Harmonizing long-term objectives (e.g., irrigation, hydropower) with the flooding objective.” In proceedings of the XIX International Conference on Computational Methods in Water Resources (CMWR), University of Illinois at Urbana-Champaign, Urbana, Illinois, June 17-21, 2012.
  39. Choi, Y., and Leon, A. S. (2012). “Minimizing Geysers and CSOs in the Portland Combined Sewer System.” 2012 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 18, 2012.
  40. Gifford-Miears, C. H., and Leon, A. S. (2012). “Applicability of Three Dimensional Modeling in the Construction of Hydraulic Performance Graphs for Unsteady Flow Routing in Complex River Networks.” 2012 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 18, 2012.
  41. Gomez, L.A., and Leon, A. S. (2012). “Improving the Computational Efficiency of the Hydraulic Performance Graphs for Unsteady Flow Routing in Complex River Networks.” 2012 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 18, 2012.
  42. Gibson, N. L., Leon, A. S., and Gifford-Miears, C. H. (2012). “Toward Reduction of Uncertainty in Complex Multi-Reservoir River Systems.” SIAM (Society for Industrial and Applied Mathematics) Conference on Uncertainty Quantification, Raleigh, North Carolina, April 2-5, 2012.
  43. Leon, A. S., Kanashiro, E. A., Valverde, R., Gifford-Miears, C. H., Gichamo, T. Z., Gomez L., and Rask, J. (2012) “A Computationally Efficient and Robust Approach for Multi-objective Operation of Multi-reservoir systems Subjected to Multiple Constraints.” Reservoir System Modeling Technologies Conference, Bonneville Power Administration, February 21-22, 2012, Portland, Oregon.
  44. Gibson, N. L., Gichamo, T. Z., Valverde, R., Gifford-Miears, C. H., and Leon, A. S. (2012) “Towards reduction of uncertainty in the operation of reservoir systems.” Reservoir System Modeling Technologies Conference, Bonneville Power Administration, February 21-22, 2012, Portland, Oregon.
  45. Leon, A. S., and Gichamo, T. Z. (2011). “A novel physically-based framework for the intelligent control of river flooding.” Oregon Water Conference, Corvallis, Oregon, 2011.
  46. Leon, A. S. (2006) “Towards modeling for real-time control of combined-sewer-overflow systems: Application to the Calumet TARP System in Chicago, Illinois.”  Proc., Illinois Water Conference, October 4-5, 2006. Edited by Jennifer Fackler, Illinois Water Resources Center.
  47. Leon, A. S. (2006). “Efficient numerical modeling of one and two-phase transient flows (In Spanish).” Proc., I International Congress of Hydraulics, Hydrology and Environment. Organized by Instituto de la Construcción y Gerencia, Lima, Peru.
  48. Leon, A. S. (2006). “New numerical model for the simultaneous simulation of unsteady free surface and pressurized flows. (In Spanish).” Proc., I International Congress of Hydraulics, Hydrology and Environment. Organized by Instituto de la Construcción y Gerencia, Lima, Peru.
  49. Leon, A. S. (2004). “Special topics in unsteady flows and its applications to Hydraulic Engineering (Key Note speaker - in Spanish).” Proc., I Conference in Hydraulics of Rivers and Channels, Lima, Peru.
  50. Leon, A. S. (2003). “One-dimensional modeling of the intrusion of contaminants for conservative substances in non-permanent and non-uniform flows (In Spanish).” Proc., XIV National congress of Civil Eng., Iquitos, Peru.
  51. Leon, A. S. (2002). “Alternative of hydraulic design for intakes in steep rivers and large transport of boulders. (In Spanish).” Proc., Instituto de la Construcción y Gerencia, Lima, Peru.
  52. Leon, A. S. (1999). “Local scour around cylindrical piers in non-cohesive beds (In Spanish).” Proc., XII National congress of Civil Eng., Huánuco, Peru.

Posters

  1. Strane M. S., Louie S., Pennings S. C., and Leon, A. S. (2022). “Constructed Wetlands at The University of Houston Coastal Center.” Poster presented in the Joint Aquatic Sciences Meeting (JASM), Grand Rapids, Michigan, May 18, 2022.
  2. Verma V., Bian L., Rojali A., Ozecik D., and Leon, A. S. (2019). “Flood Control using smart low-cost hardware for remote operation of siphons and outlet gates in a network of storage systems.” Poster presented in the 2019 Annual Water Resources Conference, Salt Lake City, UT, November 03, 2019.
  3. Hogan A. and Leon, A. S. (2019). “EcoFLow: Sustainable and Smart Stormwater Solutions for Future Generations of South Florida.” Poster presented in the Conference for Undergraduate Research at FIU (CURFIU), Miami, FL, April 08, 2019.
  4. Leon, A. S. and Goodell, C. (2017). “Automation of HEC-RAS using MATLAB.” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, Sacramento, CA, May 21-25, 2017.
  5. Chen, D., Leon, A. S., Hosseini, P. (2016). “A warm-start Strategy to Improve the Performance of an Evolutionary Algorithm for Optimizing Operation of Multi-reservoirs.” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, West Palm Beach, FL, May 22-26, 2016.
  6. Leon, A. S. and Elayeb, I., (2016). “An Experimental Study on Geysers with Unsaturated Air and Near-saturation CO2. Implications on the Design of Stormwater and Combined Sewer Systems.” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, West Palm Beach, FL, May 22-26, 2016.
  7. Elayeb, I., and Leon, A. S. (2016). “An experimental study on air- and CO2 based geyser flows” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, April 18, 2016.
  8. Hosseini, P., Chen D., Leon, A. S. and Gibson N. (2016). “Optimization of reservoir operation considering uncertain decision variables.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, April 18, 2016.
  9. Choi, Y., Leon, A. S., and Apte, S. (2016). “A one-dimensional numerical model for predicting pressure and velocity oscillations due to buoyancy of a compressed air-pocket in a vertical shaft” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, April 18, 2016.
  10. Elayeb, I., and Leon, A. S. (2016). “An experimental study of geyser occurrence in combined sewer systems” Poster presented in the Oregon State COE Graduate Student Research Expo, Portland, March 01, 2016.
  11. Choi, Y., Leon, A. S., and Apte, S. (2016). “A one-dimensional numerical model for predicting pressure and velocity oscillations due to buoyancy of a compressed air-pocket in a vertical shaft.” Poster presented in the Oregon State COE Graduate Student Research Expo, Portland, March 01, 2016.
  12. Hosseini, P., Chen, D. Leon, A. S., Gibson, N. (2016). “Robust Optimization of Reservoir Operation Considering Uncertainty of Inflows and Flexible Decision Variables.” Poster presented in the Oregon State COE Graduate Student Research Expo, Portland, March 01, 2016.
  13. Alnahit, A. O., and Leon, A. S. (2015). “A Remotely Controlled Siphon System for Dynamic Water Storage Management.” Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 14-18, 2015.
  14. Choi, Y., Leon, A. S., and Apte, S. (2015). “A one-dimensional numerical model for predicting pressure and velocity oscillations of a compressed air-pocket in a vertical shaft.” Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 14-18, 2015.
  15. Hosseini, P., Chen, D., Leon, A. S. and Gibson, N. (2015). “Flexible Decision Variables in Short-term Operation of Reservoirs Using Dimension Reduction Approach.” Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 14-18, 2015.
  16. Elayeb, I. S., Leon, A. S., Choi, Y., and Alnahit, A. O. (2015). “An experimental study of geyser-like flows induced by a pressurized air pocket.” Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 14-18, 2015.
  17. Chen, D., Leon, A. S., Hosseini, P., and Gibson, N. (2015). “Robust multi-objective optimization for short-term reservoir operation under inflow uncertainty.” Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 14-18, 2015.
  18. Hosseini, P., and Leon, A. S. (2015). “Multi-Objective Optimization of Reservoir Operation Considering Flexibility in Decision Variables.” Poster presented in the OSU College of Engineering Research Engineering Expo, Portland, March 04, 2015. Parnian received the Runner-up Award (School of Civil and Construction Engineering).
  19. Choi, Y., Leon, A. S., and Apte, S. (2014). “Predicting Air-Water Geysers and their Implications on Reducing Combined Sewer Overflows. Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 15-19, 2014.
  20. Livingston, G. E., Leon, A. S. and Babbar-Sebens, M. (2014). “Oregon BEST Lab: OSU-Benton County, Green Stormwater Infrastructure Research Facility.” Poster presented in the Oregon BEST FEST, Portland, Oregon, September 15th –16th, 2014.
  21. Livingston, G. E., Babbar-Sebens, M. and Leon, A. S. (2014). “Green Infrastructure for Stormwater Treatment.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 12, 2014.
  22. Choi, Y., Leon, A. S., and Apte, S. (2014). “Three-Dimensional Numerical Study of the Turbulent Flow Structures Present in Air-Water Geyser Flows.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 12, 2014.
  23. Hosseini, P., and Leon, A. S. (2014). “A Multi-Objective Optimization for the Operation of Multi-Reservoir Systems under Uncertainty.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 12, 2014.
  24. Gomez, L., Lee, H. W, and Leon, A. S. (2014). “A Domain Decomposition strategy for Unsteady Flow Routing in River Systems.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 12, 2014.
  25. Hosseini, P., and Leon, A. S. (2014). “Effects of small tidal-type waves on average flow discharge in mild-sloped rivers and canals.” Poster presented in the OSU College of Engineering Research Engineering Expo, Portland, OR, 2014.
  26. Hosseini, P., Leon, A. S. and Chen D. (2014). “A Framework for Optimizing Short-time Operation of Multiple Reservoirs with Multi-objectives Under Uncertainty.” Poster presented in the OSU College of Engineering Research Engineering Expo, Portland, OR, 2014.
  27. Leon, A. S., Gifford-Miears C. and Gomez L. (2013). “Unsteady flow routing using Performance Graphs based on two-dimensional hydrodynamic simulations” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, Cincinnati OH, May 19-22, 2013.
  28. Leon, A. S. and Choi Y. (2013). “A new numerical model that preserves “lake at rest” conditions in open-channel and surcharged flows in steep-slope closed conduit systems” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, Cincinnati OH, May 19-22, 2013.
  29. Gomez, L., Lee, H. W, and Leon, A. S. (2013). “A real options-based framework to evaluate investments in river flood control under uncertainty.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 13, 2013.
  30. Gomez, L., and Leon, A. S. (2013). “The OSU Rivers Model and its Comparison with the Unsteady HEC-RAS Model.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 13, 2013.
  31. Leon, A. S., Gichamo, T. Z., Valverde, R., and Rask, J. (2012). “Hydraulic performance graph-based model for unsteady flow simulations in topologically complex river networks.” Poster presented in the XIX International Conference on Computational Methods in Water Resources (CMWR), University of Illinois at Urbana-Champaign, Urbana, Illinois, June 17-21, 2012.
  32. Choi, Y., and Leon, A. S. (2012). “Design, Analysis and Implementation of Multipurpose River Research Facility at O.H. Hinsdale Wave Research Laboratory.” Poster presented in the 2012 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 18, 2012.
  33. Bernedo C., Salas, J. and Leon, A. S. (2012). “Considering climate uncertainties to determine hydrologic design criteria – Does traditional Rainfall-Frequency Analysis works?” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, Albuquerque, NM, May 20-24, 2012.

Short Courses

  1. Leon, A. S. (2015) Workshop on “Overview of the OSU-OUU model and its Application to the Columbia River System”, 2 hours, held at Bonneville Power Administration Headquarters, Portland, OR, July 22, 2015.
  2. Leon, A. S. (2013) short course on “Flow Dynamics in Combined Storm-sewer Systems. Modeling needs and Application of the Illinois Transient Model (ITM)”, 8 hours, held at City of Portland, Environmental Services, Portland, OR, October 25, 2013.
  3. Leon, A. S. (2010) “Modeling of flows in Combined Storm-sewer Systems”, 4 hours, held at the ASCE EWRI World Environmental & Water Resource Congress, Providence, Rhode Island, May 16, 2010.
  4. Leon, A. S. (2010) “Unsteady flow modeling using HEC-RAS”, 16 hours, held at Montgomery Watson and Harza Engineering (MWH), Denver, Colorado, August 21 and 23, 2010.

My Theses

PhD Thesis

  • Leon A. S. (2006) “Improved Modeling of Unsteady Free Surface, Pressurized and Mixed Flows in Storm-sewer Systems.”, Ph.D. thesis, University of Illinois at Urbana-Champaign.  Advisors: Dr. Marcelo García (University of Illinois at Urbana-Champaign) and Dr. Mohamed Ghidaoui (Hong Kong University of Science and Technology). [see PDF]

    MS Thesis

  • Leon, A. S. (2000) “Local scour around cylindrical piers in non-cohesive beds (In Spanish).”, Advisor: Dr. Francisco Coronado (Ph.D., Massachusetts Institute of Technology (MIT)).

    Civil Engineer Thesis

  • Leon, A. S. (1998) “The hydraulic design of a bottom rack type intake in a supercritical regime and software applications (In Spanish).”, Advisors: Prof. Erasmo Matos, Dr. Francisco Coronado (MIT).

    Recent Research Reports

    1. Leon, A. S., and other nine authors (2018). “Framework for Quantification of Risk and Valuation of Flexibility in the FCRPS – Final Report, Software and User’s Manual”, Report, Software and User’s Manual prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    2. Leon, A. S., and other nine authors (2018). “Framework for Quantification of Risk and Valuation of Flexibility in the FCRPS – Stage gate 5”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    3. Leon, A. S. (2017). “Prediction and quantification of CSOs in combined sewer systems under extreme storm events: Extreme events, Flow dynamics, Reduction of CSOs”, Final Report prepared for the U.S. Environmental Protection Agency.
    4. Leon, A. S., and other nine authors (2017). “Framework for Quantification of Risk and Valuation of Flexibility in the FCRPS – Stage gate 4”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    5. Leon, A. S., and other nine authors (2017). “Framework for Quantification of Risk and Valuation of Flexibility in the FCRPS – Stage gate 3”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    6. Leon, A. S., and other eight authors (2016). “Framework for Quantification of Risk and Valuation of Flexibility in the FCRPS – Stage gate 2”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    7. Leon, A. S., and Choi Y. (2016). “Prediction and quantification of CSOs in combined sewer systems under extreme storm events: Extreme events, Flow dynamics, Reduction of CSOs”, Progress Report Year 4 prepared for the U.S. Environmental Protection Agency (primary author).
    8. Leon, A. S., and other eight authors (2016). “Framework for Quantification of Risk and Valuation of Flexibility in the FCRPS – Stage gate 1”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    9. Leon, A. S., and other nine authors (2015). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty – Final Report, Software and Other Deliverables.”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    10. Leon, A. S., and Choi Y. (2015). “Prediction and quantification of CSOs in combined sewer systems under extreme storm events: Extreme events, Flow dynamics, Reduction of CSOs”, Progress Report Year 3 prepared for the U.S. Environmental Protection Agency (primary author).
    11. Babbar-Sebens M. and Leon, A. S. (2015). “Improving sustainability of urban streets via rain gardens – How effective are these practices in the Pacific Northwest?”, Final Project Report prepared for the Pacific Northwest Transportation Consortium (PacTrans), USDOT University Transportation Center for Federal Region 10, University of Washington.
    12. Leon, A. S., and other nine authors (2015). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 6”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    13. Leon, A. S., and other nine authors (2014). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 5”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    14. Leon, A. S., and Choi Y. (2014). “Prediction and quantification of CSOs in combined sewer systems under extreme storm events: Extreme events, Flow dynamics, Reduction of CSOs”, Progress Report Year 2 prepared for the U.S. Environmental Protection Agency (primary author).
    15. Leon, A. S., and other nine authors (2014). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 4”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    16. Leon, A. S., and other nine authors (2013). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 3”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    17. Leon, A. S., and Choi Y. (2013). “Prediction and quantification of CSOs in combined sewer systems under extreme storm events: Extreme events, Flow dynamics, Reduction of CSOs”, Progress Report Year 1 prepared for the U.S. Environmental Protection Agency (primary author).
    18. Leon, A. S., and other nine authors (2013). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 2”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
    19. Leon, A. S., and Oberg, N. (2013). “User's manual for Illinois Transient Model-two equation model v. 1.3. A Model for the Analysis of Transient Free surface, Pressurized and Mixed flows in Storm-sewer Systems”, Oregon State University, Corvallis.
    20. Leon, A. S., and other nine authors (2012). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 1”, Report prepared for the Bonneville Power Administration, US Department of Energy.
    21. Leon, A. S., and Oberg, N. (2010). “User's manual for Illinois Transient Model-two equation model. A Model for the Analysis of Transient Free surface, Pressurized and Mixed flows in Storm-sewer Systems. Version 1.2”.
    22. Leon, A. S., and Oberg, N. (2009). “Illinois Transient Model Programmer's Manual”, University of Illinois at Urbana-Champaign.
    23. Leon, A. S., Oberg, N., Choi, N.J., Schmidt, A., and García, M.H., 2009. "Transient Analysis of the Calumet TARP System" Report prepared for the Metropolitan Water Reclamation District of Greater Chicago. University of Illinois at Urbana-Champaign, Civil Engineering Studies, Hydraulic Engineering Series.
    24. Cataño-Lopera  Y. A., Oberg N., Choi N. J., Schmidt, A. R., Leon, A. S., and Garcia, M. H. (2009). “Hydraulic Conveyance Analysis of the Tarp Calumet System." Report prepared for the Metropolitan Water Reclamation District of Greater Chicago. University of Illinois at Urbana-Champaign, Civil Engineering Studies, Hydraulic Engineering Series.
    25. Leon, A. S., and Oberg, N. (2009). “User's manual for Illinois Transient Model-two equation model v. 1.1. A Model for the Analysis of Transient Free surface, Pressurized and Mixed flows in Storm-sewer Systems”, University of Illinois at Urbana-Champaign.
    26. Oberg, N., Schmidt, A., Leon, A. S., Waratuke, A., and García, M.H., 2008. "Illinois Hydraulic Conveyance Analysis Program: ICAP." Report prepared for the Metropolitan Water Reclamation District of Greater Chicago (MWRDGC). University of Illinois at Urbana-Champaign, Civil Engineering Studies, Hydraulic Engineering Series No. 81, ISSN: 0442-1744.
    27. Leon, A. S., Christensen, D. R., Schmidt, A. R., and García, M. H. (2007). “Illinois Transient Model (One-equation model) user's manual. A Model for the Analysis of Unsteady Free surface, Pressurized and Mixed flows in Storm-sewer Systems”, University of Illinois at Urbana-Champaign.
    28. García, M. H., Leon, A. S., Ancalle, C. (2007) “Sedimentation analysis of Valenciano reservoir, Juncos, Puerto Rico”, Prepared by CA Engineering for CSA Group, San Juan, Puerto Rico.
    29. García, M. H., Leon, A. S., Ancalle, C. (2007) “Safe yield Analysis of Valenciano reservoir, Juncos, Puerto Rico”, Prepared by CA Engineering for CSA Group, San Juan, Puerto Rico.
    30. Leon, A. S., Schmidt, A. R., Ghidaoui, M. S. and García, M. H. (2006) “Review of sewer surcharging phenomena and models." University of Illinois at Urbana-Champaign. Civil Engineering Studies, Hydraulic Engineering Series No. 78.
    31. García, M. H., Niño, Y., Abad, J. D., Cantero, M., Leon, A. S., Manzini, S., Sequeiros, O. (2003) “Sedimentation management in combined sewer overflow storage reservoirs using water jets." University of Illinois at Urbana-Champaign. Report to Metropolitan Water Reclamation District of Greater Chicago.

    Presentations to Professional Groups: Invited-Keynote

    1. Keynote Talk, International Association for Hydro-Environment Engineering and Research (IAHR) Online Short Course: Perspectives on Two-phase Flows in Urban Water Systems, “Mitigation strategies for air-water issues in gravity-based systems,” May 10, 2023.
    2. Keynote Talk, IX Seminario Internacional de Ingenieria Civil, Ayacucho, Peru, Virtual Conference, “Towards minimizing overflows in combined sewer systems,” November 30, 2022.
    3. Keynote Talk, 2021 International Workshop on Sustainable Urban Drainage, Virtual Conference, “Geysers in Sewer Systems and Physics-based AI for CSO Mitigation,” August 06, 2021.
    4. Keynote Talk, HGS Flood Conference: FLOODING IN SOUTHEAST TEXAS: THE SCIENCE BEHIND THE FLOODS, Houston, Texas, “Towards smart and green flood control,” June 2018.
    5. Keynote Talk, XXIV Congreso Nacional de Estudiantes de Ingenieria Civil del Perú, Ayacucho, Peru, “State-of-the-art strategies on flood mitigation, reservoir operation and control of geyser eruptions in stormwater and combined sewer systems,” August 2016
    6. Keynote Talk, Pacific Northwest Waterways Association (PNWA) Summer Conference, Hood River, OR, “Development of a Computational Framework for the Optimal Control of Multi-Reservoir Systems Under Uncertainty: Application to the Columbia River System”, June 2015
    7. Keynote Talk, X Congreso Latinoamericano de Estudiantes de Ingenieria Civil - XXII Congreso Nacional de Estudiantes de Ingenieria Civil del Perú, Arequipa, Peru, “Recent advances on Flood Control, Reservoir Operation and Transient Flows,” August 2014

    Presentations to Professional Groups: Invited-Other

    1. Invited Talk, St. Louis Section of ASCE-EWRI, Monthly Speaker Series Event, “Towards minimizing sewer overflows,” September 21, 2023
    2. Invited Talk, FIU Department of Politics and International Relations, Miami, FL, Politics of Disaster seminar, “Simulation of natural Hazards,” March 10, 2023.
    3. Invited Talk, University of Miami, Miami, FL, “Towards minimizing overflows in combined sewer systems,” September 16, 2022.
    4. Invited Talk, FIU Department of Politics and International Relations, Miami, FL, Politics of Disaster seminar, “Simulation of natural Hazards,” March 10, 2022.
    5. Invited Talk, Vicksburg District, U. S. Army Corps of Engineers, Vicksburg, MS, “Potential Areas for Research Collaboration on Coastal and Hydraulic Engineering,” August 04, 2021.
    6. Invited Talk, Universidad Peruana de Ciencias Aplicadas (Lima, Peru), Virtual Seminar, “Geysers in Sewers and “Smart” and “Green” Flood Control,” October 02, 2020.
    7. Invited Talk, FIU Department of Mechanical and Materials Engineering Graduate Seminar, Miami, FL, “Violent Geysers in Stormsewer Systems and Towards “Smart” and “Green” Flood Control,” January 24, 2020.
    8. Invited Talk, South Florida Water Management District, West Palm Beach, FL, “Optimal Multi-objective Reservoir Operation and Decision Support System/Low-Cost Hardware for Automated and Remote Control  of Hydraulic Systems,” May 2, 2019.
    9. Invited Talk, "Lunch n’ Learn" at FIU Miami Beach Urban Studios, Miami Beach, FL, “Towards Smart and Green control of Stormwater Quantity and Quality. Coastal Communities in the not so near future,” April 12, 2019.
    10. Invited Talk, Center for Thermo-Fluid Mechanics Seminar, University of Houston, Houston, TX, “Violent Geysers in Stormwater and Combined Sewer Systems: Experimental and Numerical Modeling,” April 2017.
    11. Invited Talk, Harris County Flood Control District, Houston, TX, “Flood Control Research and Applications,” March 2017.
    12. Invited Talk, Technology Innovation Summit, Bonneville Power Administration, Portland, OR, “Framework for Quantification of Risk and Valuation of Flexibility in the Federal Columbia River Power System (FCRPS),” January 2017.
    13. Invited Talk, Technology Innovation Summit, Bonneville Power Administration, Portland, OR, “Framework for Quantification of Risk and Valuation of Flexibility in the Federal Columbia River Power System (FCRPS),” January 2016.
    14. Invited Talk, Changjiang River Scientific Research Institute (CRSRI), Wuhan, Hubei, China, “Recent Advances on Flood Control and Reservoir Operation”, May 2015. 
    15. Invited Talk, Winter Seminar Series, Water Resources Graduate Program, Oregon State University, Corvallis, OR,“Development of Computer Models for the Optimal Control of Multi-Reservoir Systems Under Uncertainty: Application to the Columbia River System,” March 2015
    16. Invited Talk, Technology Innovation Summit, Bonneville Power Administration, Portland, OR, “Development of a computational framework and platform for the optimal control of multi-reservoir systems under uncertainty,” January 2015
    17. Invited Talk, Geosyntec, Portland, OR, “Stormwater and Reservoir Operation Research and Potential Collaborations between OSU and Geosyntec,” June 2014
    18. Invited Talk, Technology Innovation Summit, Bonneville Power Administration, Portland, OR, “Development of a computational framework and platform for the optimal control of multi-reservoir systems under uncertainty,” January 2014
    19. Invited Talk, EPA RESEARCH FORUM: Extreme Event Impacts on Air Quality and Water Quality with a Changing Global Climate, Arlington, VA, “Prediction and quantification of CSOs under extreme storm events: Flow dynamics and Reduction of CSOs,” February 2013
    20. Invited Talk, Technology Innovation Summit, Bonneville Power Administration, Portland OR “Development of a computational framework and platform for the optimal control of multi-reservoir systems under uncertainty,” January 2013
    21. Invited Talk, Reservoir System Modeling Technologies Conference, Bonneville Power Administration, Portland, OR, “A Computationally Efficient and Robust Approach for Multi-objective Operation of Multi-reservoir systems Subjected to Multiple Constraints,” February 2012
    22. Invited Talk, Winter Seminar Series, Department of Mathematics, Oregon State University, Corvallis, OR, “Towards the intelligent control of river flooding. Harmonizing long-term objectives with the flooding objective,” February 2012
    23. Invited Talk, Universidad Nacional San Cristobal de Huamanga, Ayacucho, Peru, “Real-time Control of Multi-Objective and Multi-Reservoir Systems,” December 2011
    24. Invited Talk, Universidad Nacional de Ingenieria, Lima, Peru, “Real-time Control of Multi-Objective and Multi-Reservoir Systems,” December 2011
    25. Invited Talk, Bonneville Power Administration (BPA), Portland, Oregon, “Towards Real-time Control of Multi-objective and Multi-Reservoir Systems,” October 2011
    26. Invited Talk, Ecosystem Informatics at Oregon State University (IGERT), Corvallis, OR, “Towards Real-time Control of Multi-objective and Multi-Reservoir Systems,” May 2011
    27. Invited Talk, Universidad Nacional de Ingenieria, Lima, Peru, “Modeling of Combined Sewer Systems,” December 2010
    28. Invited Talk, Montgomery Watson and Harza Engineering (MWH), Denver, CO, “Modeling of Unsteady Flows using HEC-RAS,” July 2010
    29. Invited Talk, Oregon State University, Corvallis, OR, “Towards Real-time Control of Reservoir Systems,” May 2010
    30. Invited Talk, University of Idaho, Boise, Idaho, “Application of Genetic Algorithms to the Operation of Reservoir Systems,” May 2010
    31. Invited Talk, Boise State University, Boise, ID, “Towards Real-time Control of Combined Sewer Systems,” March 2009
    32. Invited Talk, University of Illinois at Urbana-Champaign, Urbana, IL, “A mathematical and numerical model for the simultaneous occurrence of free surface and pressurized flows,” May 2006
    33. Invited Talk, Universidad Nacional de Ingenieria, Lima, Peru, “Transient flows in Combined Sewer Systems,” December 2005
    34. Invited Talk, I Conference in Hydraulics of Rivers and Channels, Lima, Peru, “Special Topics in Unsteady Flows and its Applications to Hydraulic Engineering,” December 2004
    35. Invited Talk, I Conference in Hydraulics of Rivers and Channels, Lima, Peru, “Special Topics in Unsteady Flows and its Applications to Hydraulic Engineering,” December 2004
    36. Invited Talk, Universidad Nacional San Cristobal de Huamanga, Ayacucho, Peru, “Unsteady transition between free surface and pressurized flows (In Spanish),” December 2004

    Presentations to Professional Groups: Non-invited (Contributed Talks)

    1. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress (virtual), “Laboratory Tests and OpenFOAM Simulations of Field-Scale Stormsewer Geysers and Retrofitting Methods for their Control,” June 2021.
    2. Contributed Talk (with Linlong Bian and Vivek Verma), ASCE-EWRI World Environmental & Water Resource Congress (virtual), “Operational Reliability Assessment of a Remotely-controlled Siphon System for Draining Shallow Storage Ponds,” June 2021.
    3. Contributed Talk (with Vivek Verma and Linlong Bian), ASCE-EWRI World Environmental & Water Resource Congress (virtual), “Internet-enabled remotely controlled architecture to release water from storage units,” June 2021.
    4. Contributed Talk (with Linlong Bian and Vivek Verma), ASCE-EWRI World Environmental & Water Resource Congress (virtual), “A Feasibility Study on Harvesting Rainwater from Large Solar Panel Canopies to Supplement Makeup Water for Cooling Towers by Using Remotely Controlled and Self-Cleaning Rain Cistern,” June 2021.
    5. Contributed Talk, 2020 Florida Stormwater Association (FSA) Winter Conference, “DSS for Operation of a Network of Storage Ponds for Mitigating Floods,” December 2020.
    6. Contributed Talk, 38th IAHR World Congress, Panama City, Panama, “Experiments and Numerical Modeling of Field-Scale Geysers in Stormsewer Systems”, September 2019.
    7. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Pittsburgh, PA, “Decision Support System for the remote and optimal operation of control structures in a network of storage systems for mitigating floods,” May 2019.
    8. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Pittsburgh, PA, “Towards Smart and Green Flood Control: Remote and optimal operation of control structures in a network of storage systems for mitigating floods,” May 2019.
    9. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Pittsburgh, PA, “Upper Limit Velocity of Geyser Eruptions in Stormwater and Combined Sewer Systems,” May 2019.
    10. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Minneapolis MN, “Chain mechanisms preceding and during violent geysers in sewer systems,” June 2018.
    11. Contributed Talk, The 8th International Symposium on Environmental Hydraulics, Notre Dame, IN, “Physical mechanisms preceding and during violent geysers in sewer systems,” June 2018.
    12. Contributed Talk, 37th IAHR World Congress, Kuala Lumpur, Malaysia, “Mechanisms that lead to the occurrence of violent geysers in storm water and combined sewer systems”, August 2017.
    13. Contributed Talk, 37th IAHR World Congress, Kuala Lumpur, Malaysia, “Dynamic management of water storage of wetlands and shallow ponds for flood control”, August 2017.
    14. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Sacramento CA, “Why Violent Geysers Occur in Stormwater and Combined Sewer Systems,” May 2017.
    15. Contributed Talk, 6th International Symposium on Hydraulic Structures, Portland OR, “Determining Optimal Discharge and Optimal Penstock Diameter in Water Turbines,” June 2016.
    16. Contributed Talk, 6th International Symposium on Hydraulic Structures, Portland OR, “A Remotely Controlled Siphon System for Dynamic Water Storage Management,” June 2016.
    17. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, West Palm Beach, FL, “New Evidences on the Causes of Explosives Geysers in Stormwater and Combined Sewer Systems: A Simplified Model for Prediction of These Geysers,” May 2016.
    18. Contributed Talk, International Conference on Water Management Modeling, Toronto Canada, “New insights on the causes of explosives geysers in stormwater and combined sewer systems: A model for their prediction.,” February 2016
    19. Contributed Talk, American Geophysical Union Fall Meeting, San Francisco CA, “Minimizing water consumption when producing hydropower,” December 2015.
    20. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Portland OR, “Effects of Small Tidal-type Waves on Rating Curves in Rivers,” June 2014.
    21. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Portland, OR, “A Dimensional Analysis for Determining Optimal Discharge and Optimal Penstock Diameter in Impulse and Reaction Water Turbines,” June 2014.
    22. Contributed Talk, AWRA Annual Water Resources Conference, Portland, OR, “Development of a State-of-the-Art Computational Framework for the Optimal Control of Multi-Reservoir Systems Under Uncertainty,” November 2013.
    23. Contributed Talk, City of Portland, Environmental Services, Portland OR, “Flow Dynamics in Combined Storm-sewer Systems. Modeling needs and Application of the Illinois Transient Model (ITM),” October 2013.
    24. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Cincinnati, OH, “A Framework for Propagation of Uncertainty in River Systems,” May 2013
    25. Contributed Talk, XIX International Conference on Computational Methods in Water Resources (CMWR), Urbana, IL, “Toward Reduction of Uncertainty in Complex Multi-reservoir River Systems,” June 2012
    26. Contributed Talk, XIX International Conference on Computational Methods in Water Resources (CMWR), Urbana, IL, “Towards the Intelligent Control of River Flooding. Harmonizing Long-term Objectives (e.g., irrigation, hydropower) with the Flooding Objective,” June 2012
    27. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Albuquerque, NM, “A Robust, Numerically Efficient Model for Unsteady Flow Routing in Topologically Complex River Networks,” May 2012
    28. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Albuquerque, NM, “Towards the Intelligent Control of River Flooding,” May 2012
    29. Contributed Talk, Oregon Water Conference, Corvallis, OR, “A Novel Physically-based Framework for the Intelligent Control of River Flooding,” May 2011
    30. Contributed Talk, Watershed Management Conference, Theme: "Innovations in Watershed Management Under Land Use and Climate Change", Madison, WI, “A New Coupled Optimization-hydraulic Routing Model for Real-time Operation of Highly Complex Regulated River Systems,” August 2010
    31. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Providence, RI, “Flow Dynamics in Combined Storm-Sewer Systems: Application of the Illinois Transient Model (ITM) to the Calumet TARP System in Chicago, Illinois,” May 2010
    32. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Kansas City, MO, “A Robust and Fast Model for Simulating Street Flooding,” May 2009
    33. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Kansas City, MO, “Boundary Conditions for Simulating Complex Storm-sewer Systems in Free Surface, Pressurized, and Mixed Flow Conditions,” May 2009
    34. Contributed Talk, 10th International Conference on Pressure Surges, BHR Group, Edinburgh, United Kingdom “A Shock-capturing Approach for Simulating Gravity Flows, Pressurized Flows and the Simultaneous Occurrence of Gravity and Pressurized Flows,” May 2008
    35. Contributed Talk, World Water and Environmental Resources Congress, Honolulu HI, “A Finite Volume Model for Mixed Free Surface-pressurized Flows in Drainage Systems,” May 2008
    36. Contributed Talk, World Water and Environmental Resources Congress, Honolulu HI, “Experimental and CFD Modeling of a Vortex Flow Restrictor,” May 2008
    37. Contributed Talk, 5th International Symposium on Environmental Hydraulics, Tempe AZ “Godunov-type Solutions for Two-phase Water Hammer Flows,” December 2007
    38. Contributed Talk, Contemporary Modeling of Urban Water Systems, Toronto Canada, “An efficient finite-volume scheme for modeling water hammer flows.,” February 2007
    39. Contributed Talk, Annual Illinois Water Conference, Urbana IL, “Towards Modeling for Real-time Control of Combined Sewer Overflow Systems: Application to the Calumet TARP System in Chicago, Illinois,” October 2006
    40. Contributed Talk, I International Congress of Hydraulics, Hydrology and Environment, Lima, Peru “Efficient Numerical Modeling of One and Two-phase Transient Flows (In Spanish),” June 2006
    41. Contributed Talk, I International Congress of Hydraulics, Hydrology and Environment, Lima, Peru, “New Numerical Model for the Simultaneous Simulation of Unsteady Free Surface and Pressurized Flows (In Spanish),” June 2006
    42. Contributed Talk, World Environmental & Water Resources Congress, Omaha NE, “An Efficient Numerical Scheme for the Modeling of Two-phase Bubbly Homogeneous Air-water Mixtures,” May 2006
    43. Contributed Talk, XXXI IAHR Congress, Seoul, Korea, “Importance of Numerical Efficiency for Real-Time Control of Transient Gravity Flows in Sewers,” September 2005
    44. Contributed Talk, XIV National congress of Civil Engineering, Iquitos, Peru, “One-dimensional Modeling of the Intrusion of Contaminants for Conservative Substances in Non-permanent and Non-uniform Flows (In Spanish),” September 2003
    45. Contributed Talk, Instituto de la Construcción y Gerencia, Lima, Peru, “Alternative of Hydraulic Design for Intakes in Steep Rivers and Large Transport of Boulders (In Spanish),” August 2002.
    46. Contributed Talk, XII National congress of Civil Engineering, Huánuco, Peru, “Local Scour around Cylindrical Piers in Non-cohesive Beds (In Spanish),” September 1999

    Participation at Invitational Workshops

  • ExCEEd Teaching Workshop, American Society of Civil Engineers (ASCE), United States Military Academy at West Point, New York, July 22-27, 2012.
  • CMMI CAREER Proposal Writing Workshop, National Science Foundation, University of Nevada, Reno, March 26, 2012

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