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Energy and Environment Directorate

Jim Yoon

Jim Yoon

(206) 528-3067


Dr. Jim Yoon is a water security and resilience scientist at Pacific Northwest National Laboratory. His research focuses on the development and application of advanced modeling and simulation techniques to understand, quantify, and evaluate impacts to water systems, targeting solutions that can enhance water security and critical infrastructure resilience under changing and adverse conditions. Jim obtained his M.S. and Ph.D. from Stanford University, where his research focused on the development of a multi-agent hydrologic-economic model for evaluation of water security in Jordan and the Middle East. Jim spearheaded the Jordan Water Project (JWP), an international interdisciplinary research project supported by a consortium of national science agencies with further assistance from USAID. Prior to his work at Stanford, Jim spent several years working as a water resources engineer at MWH Global in Southern California, consulting for municipal clients across the western US. He is also co-founder of WellDone International, a San Francisco based non-profit organization working to support clean water and sanitation projects in underserved regions across the developing world. Jim holds a B.S. in Civil Engineering with an English Literature minor from UCLA.

PNNL Publications


  • Yoon J.J., N. Voisin, C. Klassert, T.B. Thurber, and W. Xu. 2024. "Representing farmer irrigated crop area adaptation in a large-scale hydrological model." Hydrology and Earth System Sciences 28, no. 4:899-916. PNNL-SA-167240. doi:10.5194/hess-28-899-2024


  • Hadjimichael A., J.J. Yoon, P. Reed, N. Voisin, and W. Xu. 2023. "Exploring the Consistency of Water Scarcity Inferences between Large-Scale Hydrologic and Node-Based Water System Model Representations of the Upper Colorado River Basin." Journal of Water Resources Planning and Management 149, no. 2:Art. No. 04022081. PNNL-SA-166032. doi:10.1061/JWRMD5.WRENG-5522
  • Wan H., J.J. Yoon, V.A. Srikrishnan, W.B. Daniel, and D.R. Judi. 2023. "Landscape metrics regularly outperform other traditionally-used ancillary datasets in dasymetric mapping of population." Computers, Environment and Urban Systems 99. PNNL-SA-172882. doi:10.1016/j.compenvurbsys.2022.101899
  • Yoon J.J., H. Wan, W.B. Daniel, V.A. Srikrishnan, and D.R. Judi. 2023. "Structural model choices regularly overshadow parametric uncertainty in agent-based simulations of household flood risk outcomes." Computers, Environment and Urban Systems 103. PNNL-SA-173760. doi:10.1016/j.compenvurbsys.2023.101979


  • Lachaut T., J.J. Yoon, C. Klassert, and A. Tilmant. 2022. "Aggregation in bottom-up vulnerability assessments and equity implications: the case of Jordanian households' water supply." Advances in Water Resources 169. PNNL-SA-175836. doi:10.1016/j.advwatres.2022.104311
  • Msangi S.M., S.T. Waldhoff, J.J. Yoon, and W.B. Daniel. 2022. Building a better framework for evaluating human well-being impacts in global change analysis: The example of energy security. PNNL-33571. Richland, WA: Pacific Northwest National Laboratory. Building a better framework for evaluating human well-being impacts in global change analysis: The example of energy security
  • Wan H., J.J. Yoon, V.A. Srikrishnan, W.B. Daniel, and D.R. Judi. 2022. "Population downscaling using high-resolution, temporally-rich U.S. Property Data." Cartography and Geographic Information Science 49, no. 1:18-31. PNNL-SA-162765. doi:10.1080/15230406.2021.1991479
  • Yoon J.J., P. Romero-Lankao, E.Y. Yang, C. Klassert, N. Urban, K.E. Kaiser, and K. Keller, et al. 2022. "A Typology for Characterizing Human Action in MultiSector Dynamics Models." Earth's Future 10, no. 8:Art. No. e2021EF002641. PNNL-SA-170057. doi:10.1029/2021EF002641


  • Thurber T.B., C.R. Vernon, N. Sun, S. Turner, J.J. Yoon, and N. Voisin. 2021. "mosartwmpy: A Python implementation of the MOSART-WM coupled hydrologic routing and water management model." Journal of Open Source Software 6, no. 62:3221. PNNL-SA-161232. doi:10.21105/joss.03221
  • Yoon J.J., C. Klassert, P. Selby, T. Lachaut, S. Knox, N. Avisse, and J. Harou, et al. 2021. "A coupled human-natural system analysis of freshwater security under climate and population change." Proceedings of the National Academy of Sciences (PNAS). 118, no. 14. PNNL-SA-159190. doi:10.1073/pnas.2020431118

Energy and Environment

Core Research Areas