Journal Articles

Martin P. Hoerling, Jon K. Eischeid, Henry F. Diaz, Balaji Rajagopalan, and Eric Kuhn (2024) 鈥Critical Effects of Precipitation on Future Colorado River FlowJournal of Climate, April 19, 2024 ().

Woodson, D, Rajagopalan, B., Zagona, E., (2024). "Long-Lead Forecasting of Runoff Season Flows in the Colorado River Basin Using a Random Forest Approach" Journal of Water Resources Planning and Management, 150, No. 4, January 31, 2024 ( https://doi.org/10.1061/JWRMD5.WRENG-6167).

Bonham, N., Kasprzyk, J., Zagona, E., Smith, R. (2023). "Interactive and Multimetric Robustness Tradeoffs in the Colorado River Basin" Journal of Water Resources Planning and Management, 150, No. 3, December 30, 2023 (https://doi.org/10.1061/JWRMD5.WRENG-6199).

Bonham, N., Kasprzyk, J., Zagona, E., & Rajagopalan, B. (2023). "Subsampling and space-filling metrics to test ensemble size for robustness analysis with a demonstration in the Colorado River Basin,"听Environmental Modelling & Software, 2023, 105933, (ISSN 1364-8152, (https://doi.org/10.1016/j.envsoft.2023.105933).

Bonham, N., Kasprzyk, J. and Zagona, E. (2022). "post-MORDM: Mapping Policies to Synthesize Optimization and Robustness Results for Decision-maker Compromise," Environmental Modelling & Software, 157, November 2022, 105491, (https://doi.org/10.1016/j.envsoft.2022.105491).

Thapa, S., Magee, T., and Zagona, E. (2022). "Factors That Affect Hydropower Flexibility," Water听2022,听14(16), [Special Issue: Feature Papers of Water-Energy Nexus], 20 August 2022 (https://doi.org/10.3390/w14162563).

Magee, T, Turner, S, Clement, M., Oikonomou, K., Zagona, E., and Voisin, N. (2022) "Evaluating Power Grid Model Hydropower Feasibility with a River Operations Model" IOP Environmental Research Letters, 08 August, 2022, (https://doi.org/10.1088/1748-9326/ac83db).

Wheeler, K., Jeuland, M., Strzepek, K., Hall, J., Zagona, E., Abdo, G., Basson, T., Blackmore, D., Block, P., & Whittington, D., (2022) "Comment on "Egypt's water budget deficit and suggested mitigation policies for the Grand Ethiopian Renaissance Dam filling scenarios," IOP Science, Environmental Research Letters, 5 August, 2022 (https://iopscience.iop.org/article/10.1088/1748-9326/ac7e5e).

Baker, S. A., Wood, A. W., Rajagopalan, B., Prairie, J., Jerla, C., Zagona, E., Butler, R. A., Smith, R. (2022). "The Colorado River Basin Operational Prediction Testbed: A Framework for Evaluating Streamflow Forecasts and Reservoir Operations," Journal of the American Water Resources Association, 29 June 2022 (https://doi.org/10.1111/1752-1688.13038).

Smith, R., Zagona, E., Kasprzyk, J., Bonham, Alexander, E., Butler, A., Prairie, J. & Jerla, C. (2022). "Decision Science Can Help Address the Challenges of Long-Term Planning in the Colorado River Basin," Journal of the American Water Resources Association, 22 January 2022 ( https://doi.org/10.1111/1752-1688.12985).

Woodson, D., Rajagopalan, B., Baker, S., Smith, R., Prairie, J., Towler, E., Ge, M. & Zagona, E. (2021). "Stochastic Decadal Projections of Colorado River Streamflow and Reservoir Pool Elevations Conditioned on Temperature Projections,"听Water Resources Research, 57 (12),聽https://doi.org/10.1029/2021WR030936

Wheeler, K.G., Jeuland, M., Hall, J.W., Zagona, E.A., & Whittington, D. (2020). 鈥Understanding and Managing New Risks on the Nile with the Grand Ethiopian Renaissance Dam,鈥 Nature Communications, 11, 5222. https://doi.org/10.1038/s41467-020-19089-x

Basheer, M., Wheeler, K.G., Elagib, N.A., Etichia, M., Zagona, E.A., Abdo, G.M., & Harou, J.J. (2020), 鈥Filling Africa鈥檚 Largest Hydropower Dam Should Consider Engineering Realities,鈥 One Earth, [Commentary] Volume 3, Issue 3, 18 September 2020, 277鈥281.聽DOI:聽https://doi.org/10.1016/j.oneear.2020.08.015

Rajagopalan, B., Erkyihun, S., Lall, U., Zagona, E., & Nowak, K., (2019), 鈥A Nonlinear Dynamical Systems-Based Modeling Approach for Stochastic Simulation of Streamflow and Understanding Predictability,鈥 AGU Water Resources Research 55. https://doi.org/10.1029/2018WR023650

Baker, S., Wood, A., Rajagopalan, B., (2019), 鈥,鈥 Journal of the American Water Resources Association, 08 April 2019聽 (丑迟迟辫蝉://诲辞颈.辞谤驳/10.1111/1752-1688.12746).听

Smith, R., Kasprzyk, J., Basekas, L.,(2018), 鈥Experimenting with Water Supply Planning Objectives Using the Eldorado Utility Planning Model Multireservior Testbed,鈥 ASCE Journal of Water Resources Planning and Management, Volume 144, Issue 8 (https://ascelibrary.org/doi/10.1061/%28ASCE%29WR.1943-5452.0000962).

Basheer, M., Wheeler, K., Ribbe, L., Majdalawi, M., Abdo, G., &聽Zagona, E. (2018), 鈥Quantifying and Evaluating the Impacts of Cooperation in Transboundary River Basins on the Water-Energy-Food Nexus: The Blue Nile Basin,鈥 Science of The Total Environment, Volume 630 (15 July 2018), 1309鈥1323,聽ISSN 0048-9697, https://doi.org/10.1016/j.scitotenv.2018.02.249 (https://www.sciencedirect.com/science/article/pii/S004896971830648X).

Wheeler, K. G., J. W. Hall, G. M. Abdo, S. J. Dadson, J. R. Kasprzyk, R. Smith, and E. A. Zagona, (2018), 鈥Exploring Cooperative Transboundary River Management Strategies for the Eastern Nile Basin,鈥 Water Resources Research, 54, 9224鈥9254. (https://doi.org/10.1029/2017WR022149).

Erkyihun S.T., Zagona, E., & Rajagopalan, B. (2017), 鈥Wavelet and Hidden Markov-Based Stochastic Simulation Methods Comparison on Colorado River Streamflow,鈥 Journal of Hydrologic Engineering 2017, 22(9): 04017033 1鈥12, DOI: 10.1061/(ASCE)HE.1943-5584.0001538. 漏 2017 American Society of Civil Engineers.

Witt, A., Magee, T., Stewart, K., Hadjerioua, B., Neumann, D., Zagona, E., & Politano, M. (2017), 鈥Development and Implementation of an Optimization Model for Hydropower and Total Dissolved Gas in the Mid-Columbia River System,鈥 Journal of Water Resources Planning and Management, Published online 10 August, 04017063 1鈥15, DOI: 10.1061/(ASCE)WR.1943-5452.0000827. 漏 2017 American Society of Civil Engineers.

Erkyihun, S.E., Rajagopalan, B., Zagona, E., Lall, U. &聽Nowak, K. (2016), 鈥Wavelet-based Time Series Bootstrap Model for Multidecadal Streamflow Simulation Using Climate Indicators,鈥 Water Resources Research, 52, 4061鈥4077, doi:10.1002/2016WR018696.

Wheeler, K.G., Basheer, M., Mekonnen, Z. T., Eltoum, S. O., Mersha, A., Abdo, G. M., Zagona, E. A., Hall, J. W.,聽 &聽Dadson, S. J.聽(2016), 鈥Cooperative Filling Approaches for the Grand Ethiopian Renaissance Dam,鈥 Water International, Published online 11 May, DOI:10.1080/02508060.2016.1177698.

Yanto, Rajagopalan, B. & Zagona, E. (2016), 鈥Space-time Variability of Indonesian Rainfall at Inter-annual and Multi-decadal Time Scales,鈥 Climate Dynamics, 1鈥15, DOI 10.1007/s00382-016-3008-8.

Brown, C. M., J. R. Lund, X. Cai, P. M. Reed, E. A. Zagona, A. Ostfeld, J. Hall, G. W. Characklis, W. Yu, & L. Brekke (2015), 鈥The Future of Water Resources Systems Analysis: Toward a Scientific Framework for Sustainable Water Management,鈥澛Water Resources Research, 51, DOI 10.1002/2015WR017114.

Smith, R., J. Kasprzyk, and E. Zagona (2015), 鈥Many-Objective Analysis to Optimize Pumping and Releases in Multireservoir Water Supply Network,鈥澛Journal of Water Resources Planning and Management, 04015049 1鈥14, DOI 10.1061/(ASCE)WR.1943-5452.0000576.

Bracken, C., B. Rajagopalan, and E. Zagona (2014), 鈥A Hidden Markov Model Combined with Climate Indices for Multi-decadal Streamflow Simulation,鈥澛Water Resources Research, 50, 7836鈥7846.

Ibanez, E.,聽T. Magee, M. Clement, G. Brinkman, M. Milligan, and聽E. Zagona聽(2014),聽鈥Enhancing Hydropower Modeling in Variable Generation Integration Studies,鈥 Energy, 74 (2014), 518鈥528.

Clement, M., T.聽Magee, and E.聽Zagona, (2014),聽鈥A Methodology to Assess the Value of Integrated Hydropower and Wind Generation,鈥 Wind Engineering, 38 (3), 261鈥276.

Miller, W., R. Butler, T. Piechota, J. Prairie, K. Grantz, and G. DeRosa, (2012),聽鈥Water Management Decisions Using Multiple Hydrologic Models within the San Juan River Basin under Changing Climate Conditions,鈥澛Journal of Water Resources Planning and Management, 138 (5), 412鈥420.

Nowak, K., M. Hoerling, B. Rajagopalan, and E. Zagona (2012),聽鈥Colorado River Basin Hydroclimatic Variability,鈥澛Journal of Climate, 25 (2), 4389鈥4403.

Magee, T., M. Clement, and E. Zagona (2011) 鈥RiverWare Model Development for Integrated Hydropower and Wind Generation Analysis on the Columbia Basin,鈥 University of Colorado Final Report to UT Battelle under subcontract 4000097293. December 20, 2011.

Nowak, K., B. Rajagopalan and E. Zagona (2011),聽鈥Wavelet Auto-Regressive Method (WARM) for multi-site streamflow simulation of data with non-stationary spectra,鈥澛Journal of Hydrology, 410 (1-2) 1鈥12.

Regonda, Satish Kumar., E. Zagona and B. Rajagopalan (2011),聽鈥Prototype Decision Support System for Operations on the Gunnison Basin with Improved Forecasts,鈥澛Journal of Water Resources Planning and Management, 137 (5).

Bracken, C., B. Rajagopalan, and J. Prairie (2010),聽鈥A Multisite Seasonal Ensemble Streamflow Forecasting Technique,鈥澛Water Resources Research, 46.

Nowak, K., J. Prairie, B. Rajagopalan, and U. Lall (2010),聽鈥A Non-parametric Stochastic Approach for Multisite Disaggregation of Annual to Daily Streamflow,鈥澛Water Resources Research, 46.

Valerio, A., H. Rajaram and E. Zagona (2010),聽鈥Incorporating groundwater-surface water interaction into river management models,鈥 Ground Water, 48 (5): 661鈥673.

Barsugli, J. J., K. Nowak, B. Rajagopalan, J. R. Prairie, and B. Harding (2009), Comment on 鈥淲hen will Lake Mead go dry?鈥 by T. P. Barnett and D. W. Pierce,聽Water Resources Research, 45.

Rajagopalan, B., K. Nowak, J. Prairie, M. Hoerling, B. Harding, J. Barsugli, A. Ray, and B. Udall (2009),聽鈥Water supply risk on the Colorado River: Can management mitigate?,鈥澛Water Resources Research, 45.

Prairie, J., K. Nowak, B. Rajagopalan, U. Lall, and T. Fulp, (2008),聽鈥A Stochastic Nonparametric Approach for Streamflow Generation Combining Observational and Paleo Reconstructed Data,鈥澛Water Resources Research, 44.

Grantz, K., B. Rajagopalan, M. Clark, and E. Zagona (2007),聽鈥Seasonal Shifts in the North American Monsoon,鈥澛Journal of Climate, 20(9): 1923鈥1935.

Grantz, K., B. Rajagopalan, E. Zagona, and M. Clark (2007),聽鈥Water Management Applications of Climate-Based Hydrologic Forecasts: Case Study of the Truckee-Carson River Basin, Nevada,鈥澛Journal of Water Resources Planning and Management, 133 (4): 339鈥350.

Prairie, J. R. and B. Rajagopalan (2007),聽鈥A Basin Wide Stochastic Salinity Model,鈥澛Journal of Hydrology, 344 (1-2): 43鈥54.

Wheeler, K.G. J. Pitt, T. M. Magee and D. F. Luecke (2007),聽鈥Alternatives for Restoring the Colorado River Delta,鈥澛Natural Resources Journal, 47(4): 917鈥967.

Carron, J., E. Zagona, and T. Fulp (2006),聽鈥Modeling Uncertainty in an Object-Oriented Reservoir Operations Model,鈥澛Journal of Irrigation & Drainage Engineering, 132 (2): 104鈥111.

Frevert, D., T. Fulp, E. Zagona, G. Leavesley, and Harry Lins (2006),聽鈥The Watershed and River Systems Management Program鈥擜n Overview of Capabilities,鈥澛Journal of Irrigation & Drainage Engineering, 132(2): 92鈥97.

Neumann, D., E. Zagona and B. Rajagopalan (2006),鈥溌A Decision Support System to Manage Summer Stream Temperatures,鈥澛Journal of the American Water Resources Association, AWRA 42(5):1275鈥1284.

Prairie, J., B. Rajaopalan, T. Fulp, and E. Zagona (2006),聽鈥Modified K-NN Model for Stochastic Streamflow Simulation,鈥澛Journal of Hydrologic Engineering, 11(4): 371鈥378.

Prairie, J., B. Rajagopalan, and U. Lall (2006),聽鈥A Stochastic Nonparametric Technique for Space-time Disaggregation of Streamflows,鈥 Water Resources Research, 43(3).

Regonda, Satish Kumar., B. Rajagopalan, M. Clark, and E. Zagona (2006),聽鈥A Multimodel Ensemble Forecast Framework: Application to Spring Seasonal Flows in the Gunnison River Basin,鈥澛Water Resources Research, 42.

Regonda, Satish Kumar., B. Rajagopalan, and M. Clark (2006),聽鈥A New Method to Produce Categorical Streamflow Forecast,鈥澛Water Resources Research, 42.

Grantz, Katrina, Balaji Rajagopalan, Martyn Clark, and Edith A. Zagona (2005),聽鈥A Technique for Incorporating Large-Scale Climate Information in Basin-Scale Ensemble Streamflow Forecasts,鈥澛Water Resources Research, 41(10), 2005.

Prairie, James R., Balaji Rajagopalan, Terrance J. Fulp, Edith A Zagona (2005),聽鈥Statistical Nonparametric Model for Natural Salt Estimation,鈥澛Journal of Environmental Engineering, 131(1):130鈥138.

Regonda, Satish Kumar, Balaji Rajagopalan, U. Lall, Martyn Clark, Y.-I. Moon (2005),聽鈥Local Polynomial Method for Ensemble Forecast of Time Series,鈥澛Nonlinear Processes in Geophysics, 12:397鈥406.

Regonda, Satish Kumar, Balaji Rajagopalan, Martyn Clark, John Pitlick聽(2005),聽鈥Seasonal Cycle Shifts in Hydroclimatology over the Western United States,鈥 Journal of聽Climate,聽18, 372鈥384.

Neumann, D., B. Rajagopalan, and E. Zagona (2003),聽鈥Regression Model for Daily Maximum Stream Temperature,鈥澛Journal of Environmental Engineering, ASCE 129(7): 659鈥666.

Carron, J. and H. Ragaram (2001),聽鈥Impact of Variable Reservoir Releases on Management of Downstream Water Temperatures,鈥澛Water Resources Research, AGU 37(6):1733.

Eschenbach, E., T. Magee, E. Zagona, M. Goranflo, and R. Shane (2001),聽鈥Goal Programming Decision Support System for Multiobjective Operation of Reservoir Systems,鈥澛Journal of Water Resources Planning and Management, ASCE 127(2):108鈥120.

Zagona, E., T. Fulp, R. Shane, T. Magee, and H. Goranflo (2001),聽鈥RiverWare: A Generalized Tool for Complex Reservoir Systems Modeling,鈥澛Journal of the American Water Resources Association, AWRA 37(4):913鈥929.

Zigurs, I., R. Reitsma, C. Lewis, R. Hubscher, and C. Hayes (1999),聽鈥Access and Control of Computer-based Simulation Models in Inherently Conflict-Laden Negotiations,鈥澛Group Negotiation and Decision Making, 8:511鈥533.

Kim, K.S. and Chapra, S.C.(1997),聽鈥Temperature Model for Highly Transient Shallow Streams,鈥澛Journal of Hydraulic Engineering, ASCE 123(1):30鈥40.

Reitsma R.F. and J.C. Carron (1997),聽鈥Object-oriented Simulation and Evaluation of River Basin Operations,鈥澛Journal of Geographic Information and Decision Analysis, 1(1):9鈥24.

Reitsma, R.F. (1996),聽鈥Structure and Support of Water-resources Management and Decision-making,鈥澛Journal of Hydrology, 177(1):253鈥268.

Reitsma, R., I. Zigurs, C. Lewis, A. Sloane and V. Wilson (1996),聽鈥Experiment with Simulation Models in Water Resources Negotiations,鈥 Journal of Water Resources Management and Planning, ASCE 122:64鈥70.

Runkel, R.L., K.E. Bencala, R.E. Broshears, and S.C. Chapra (1996), 鈥Reactive Solute Transport in Small Streams: I. Development of an Equilibrium-Based Simulation Model,鈥澛Water Resources Research, AGU 32(2):409鈥418.

Runkel, R.L., K.E. Bencala, R.E. Broshears, and S.C. Chapra (1996),聽鈥Reactive Solute Transport in Small Streams: II. Stimulation of a pH-modification Experiment,鈥澛Water Resources Research, AGU 32(2):419鈥430.

Shane, R.M., E.A. Zagona, D. McIntosh, T. Fulp, and H.M. Goranflo (1996),聽鈥Project Object,鈥 Civil Engineering, ASCE 61鈥63.