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Patrick Ray

Research Assistant Professor
UMassAmherst


Featured Projects

Research and Background

Water Systems Modeling – Simulation and Optimization, Analysis of Water System Reliability, Vulnerability, Resilience and Sustainability, Engineering Economics and Capacity Expansion, Climate Change Impact Analysis and Adaptation Planning

Contact Info

Patrick Ray
paray@umass.edu
Dept. Civ & Envir Engineering, 18 Marston Hall, University of Massachusetts, 130 Natural Resources Road,
Amherst, Massachusetts

Research in Action

Education

Ph.D., Civil and Environmental Engineering, Water Resources - Tufts University, 2010 M.Sc., Civil and Environmental Engineering, Water Resources - Tufts University, 2006 B.Sc., Civil and Environmental Engineering-University of Massachusetts Amherst, 2001

Publications

Taner, M. Ü., Ray, P. A., Brown, C. M. (2016). “Robustness‐based evaluation of water infrastructure design under climate change.” Climatic Change, Under Review.

Yang, Y. E., Wi, S., Ray, P. A., Brown, C. M., and Khalil, A. F. (2016). “Modeling water resources of the Brahmaputra River under future climate and social uncertainties.” Global Environmental Change. 37, 16‐30, doi:10.1016/j.gloenvcha.2016.01.002.

Ray, P. A., Yang, Y. E., Wi, S., Khalil, A. F., Chatikavanij, V., Brown, C. M. (2015). “Room for improvement: Hydroclimatic Challenges to Poverty‐reducing Development of the Brahmaputra River.” Environmental Science and Policy, 64‐80, doi: 10.1016/j.envsci.2015.06.015.

Yang, Y. E., Ray, P. A., Brown, C. M., Khalil, A. F., Yu, W. H. (2015). “Estimation of flood damage functions for river basin planning: A case study in Bangladesh.” Natural Hazards, 75(3), 2773‐2791. DOI 10.1007/s11069‐014‐1459‐y.

Ray, P. A., Watkins Jr., D. W., Vogel, R. M., Kirshen, P. H. (2014). “Performance‐Based Evaluation of an Improved Robust Optimization Formulation.” Journal of Water Resources Planning and Management‐Asce, 140(6). DOI: 10.1061/(ASCE)WR.1943‐5452.0000389.

Ray, P. A., Kirshen, P. H., Watkins Jr., D. W. (2012). "Staged Climate Change Adaptation Planning for Water Supply in Amman, Jordan." Journal of Water Resources Planning and Management‐Asce, 138(5), 403‐411. DOI: 10.1061/(ASCE)WR.1943‐5452.0000172.

Ray, P. A., Kirshen, P. H., Vogel, R. M. (2010). "Integrated Optimization of a Dual Quality Water and Wastewater System." Journal of Water Resources Planning and Management‐Asce,136(1), 37‐47. 10.1061/ASCEWR.1943‐5452.0000004.

BOOKS AND BOOK SECTIONS

Ray, P., and Brown, C. (2015). “Confronting Climate Uncertainty in Water Resources Planning and Project Design: The Decision Tree Framework." Washington, DC: World Bank, doi:10.1596/978‐1‐4648‐0477‐9.

García, L. E., Matthews, J. H., Rodriguez, D. J., Wijnen, M., DiFrancesco, K. N., Ray, P. A. (2014). “Beyond Downscaling: A Bottom‐Up Approach to Climate Adaptation for Water Resources Management.” AGWA Report 01. World Bank Group. Washington, D. C.

Ray, P. (2014). “Water systems planning under uncertainty in Amman, Jordan: An application of robust optimization techniques to water resources sustainability.” Scholars’ Press, ISBN: 978‐ 3‐639‐66254‐2.

Ray, P., and C. Brown. (2015). Including Climate Uncertainty in Water Resources Planning and Project Design - Decision Tree Framework. Washington, DC: World Bank Group.

CONFERENCE PROCEEDINGS AND THESES/DISSERTATIONS

Ray, P., Bonzanigo, L., Taner, U., Wi, S., Yang, Y.C.E., Brown, C. (2015). “Lessons learned from applications of a climate change decision tree to water system projects in Kenya and Nepal.” Proceedings of the American Geophysical Union 2015 Fall Meeting, San Francisco, CA, 14‐18 December.

Ray, P., Schwarz, A., Wi, S., Correa, M., Brown, C. (2015). “Evaluating options for improving California’s drought resilience.” Proceedings of the American Geophysical Union 2015 Fall Meeting, San Francisco, CA, 14‐18 December.

Wi, S., Yang, Y. E., Ray, P., Brown, C. (2015).” Modular modeling system for building distributed hydrologic models with a user‐friendly software package.” Proceedings of the American Geophysical Union 2015 Fall Meeting, San Francisco, CA, 14‐18 December.

Taner, U. M., et al. (2015). “Vulnerability‐Based Evaluation of Water Supply Design Under Climate Change.” Proceedings of the European Geophysical Union General Assembly, Vienna, Austria, 12‐17 April, EGU2015‐8049.

Brown, C. M., et al. (2015). “Climate Stress Testing to Reveal Vulnerabilities in Infrastructure Planning.” Proceedings of the European Geophysical Union General Assembly, Vienna, Austria, 12‐17 April, EGU2015‐10202.

Ray, P. A., Robertson, R., Zhu, T., Pitois, G., Steinschneider, S., and Brown, C. (2014). “The Effects of Variations in El Niño and La Niña Patterns on World Food Markets.” Proceedings of the American Geophysical Union 2014 Fall Meeting, San Francisco, CA, 15‐19 December.

Ray, P. A., Wi, S., Schwarz, A., Correa, M., Brown, C. M. (2014). “A drought vulnerability analysis of California’s Central Valley Project.” Second Annual Workshop on Decision Making Under Deep Uncertainty, RAND Corporation, Santa Monica, CA, 18‐19 November.

Ray, P. A., and Brown, C. M. (2014). “Decision Support Framework for Evaluation of Climate Risk to Water Resource Systems.” Stockholm World Water Week, 31 August ‐ 5 September.

Ray, P. A., Taner, M. Ü., and Brown, C. M. (2014). “Downscaled GCMs and a Weather Generator – Capacity Effects for a Hydro Plant in Malawi.” Proceedings of the Water Systems, Science, and Society Under Global Change: UCOWR / NIWR / CUAHSI Annual Conference, Tufts University, Medford, MA, 18‐20 June.

Ray, P. A., and Brown, C. M. (2014). “Decision support framework for evaluation of climate risk to water resource systems.” Proceedings of the American Society of Civil Engineers 2013 World Water and Environmental Resources Congress, Portland, OR, 1‐5 June.

Yang, Y. E., Ray, P. A., Wi, S., Brown, C. M. (2014). “Climate change risk on water resources management of Himalaya basins.” Proceedings of the American Society of Civil Engineers 2013

World Water and Environmental Resources Congress, Portland, OR, 1‐5 June.

Yang, Y. E., Ray, P. A., Brown, C. M., Khalil, A. F., Yu, W. H. (2014). “Estimation of flood affected area with various data and methods – A case study in Bangladesh.” Proceedings of the 4th Workshop of the Global Flood Working Group, European Centre for Medium‐Range Weather Forecasts, Reading, UK, 4‐6 March.

Yang, Y. E., Ray, P. A., Wi, S., Brown, C. M., Khalil, A. F., (2014). “Modeling the Brahmaputra River: Hydrology, hydropower, flooding and human systems.” Proceedings of the Assam Water Conference and Internal Meeting, Guwahati, India, 3‐7 February.

Ray, P. A., Yang, Y. E., Wi, S., and C. M. Brown. (2013). “Future Visions of the Brahmaputra – Establishing Hydrologic Baseline and Water Resources Context.” Proceedings of the American

Geophysical Union 2013 Fall Meeting, San Francisco, CA, 9‐13 December.

Ray, P. A. (2013). "Labor‐Intensive Works Programs as a Sustainable and Efficient Model Water Resources Development: Case Study of Hajja and Hodeidah, Yemen." Proceedings of the American Society of Civil Engineers 2013 World Water and Environmental Resources Congress, Cincinnati, OH, 19‐23 May.

Kirshen, P., Ray, P., and Watkins Jr., D. (2011) “Incorporating Climate Change into Long‐Range Water Supply Planning Using Scenario Analysis and Stochastic Programming.” AWRA 2011

Spring Specialty Conference: Managing Climate Change Impacts on Water Resources: Adaptation Issues, Options, and Strategies, Baltimore, MD, 18‐20 April.

Ray, P.A. (2010). “Robust Optimization Using a Variety of Performance Measures: A Case Study of Water Systems Planning Under Climate and Demographic Uncertainty in Amman, Jordan.” PhD Dissertation, Tufts University, Department of Civil and Environmental Engineering, Medford, MA.

Ray, P. A., Vogel, R. M., Watkins Jr., D. W. (2010). "Robust optimization using a variety of performance indices." Proceedings of the American Society of Civil Engineers 2010 World Water and Environmental Resources Congress, Providence, RI, 16‐20 May.

Ray, P. A., Kirshen, P. H., Rosenberg, D. E., Hagan, R. E. (2010). "An overview of the water situation in Amman, Jordan." Proceedings of the American Society of Civil Engineers 2010 World Water and Environmental Resources Congress, Providence, RI, 16‐20 May.

Ray, P. A., and Kirshen, P. H. (2010). "Robust optimization of the water system in Amman, Jordan." Proceedings of the American Society of Civil Engineers 2010 World Water and Environmental Resources Congress, Providence, RI, 16‐20 May.

Ray, P. A., Kirshen, P. H., Vogel, R. M. (2006). "Optimization of integrated water and wastewater systems: Case study of Beirut, Lebanon." Proceedings of the American Society of Civil Engineers 2006 World Water and Environmental Resources Congress, Omaha, NE, 21‐25 May. Ray, P. A. (2006). "Least‐Cost Optimization for Water Systems Planning: An Exploration of the Potential Applications of Alternative Technologies for Water Supply in Beirut, Lebanon." MS Thesis, Tufts University, Department of Civil and Environmental Engineering, Medford, MA, 1‐214.

Ray, P.A. (2001). “Hydrogenotrophic Denitrification of Drinking Water Using a Dead‐End Hollow‐ Fiber Membrane Bioreactor.” Honors Thesis, University of Massachusetts, Department of Civil and Environmental Engineering, Amherst, MA, 1‐88.

Full Curriculum Vitae

Full Curriculum Vitae