Engineering Building (EB) 301T, Portland State University; Portland, OR 97207

phone: (503)725-6618

email: zz3@pdx.edu

Dr. Zhang is a Research Professor and Principal Investigator in Environmental and Water Resources Engineering at PSU. He has closely collaborated with the Corps of Engineers team in developing surface water quality, riparian vegetation, watershed, and multimedia environmental modeling capabilities. Dr. Zhang is the lead author of the water quality and contaminant modules currently integrated with HEC-RAS, HEC-ResSim, AdH, and GSSHA as their companion models. He has made significant contributions to the latest versions of CE-QUAL-W2 and the ERDC multimedia contaminant and risk modeling systems for military installations, primarily funded from the U.S. Corps of Engineers. In addition, Dr. Zhang has provided technical support and mentorship to engineers and scientists in applying these modeling tools. He has led and contributed to numerous projects studying the sources, transport, fate, and effects of heat, nutrients, organics, and metals in rivers, reservoirs, and watershed environments. Notable large-scale projects include modeling the Sacramento River, Minnesota River, Missouri River-Reservoir system, Columbia River and Snake River-Reservoir system, Mississippi River Basin, and various projects for military installations. Dr. Zhang has taught undergraduate and graduate courses and delivered lectures on water quality modeling at conferences and workshops. He is also an active member of several professional organizations, including ASCE, ASABE, AGU, CWEMF, and AIH.

• Ph.D., 1998, Biosystems Engineering, Clemson University
• M.S., 1989, Environmental Engineering, IWHR
• B.S., 1986, Civil Engineering, Hebei Agricultural University

• Conceptualization and implementation of integrated watershed and waterbody modeling systems
• Water management, environmental contamination, TMDL, and EIS studies
• Development and application of watershed models (HEC-HMS, SWAT, GSSHA, NWM)
• Development and application of river and reservoir models (HEC-RAS, HEC-ResSim, CE-QUAL-W2)
• Delft3D modeling (hydrodynamics, wave, sediment, and water quality)
• Groundwater and contaminant transport modeling (MODFLOW and MT3D)
• Multimedia contaminant transport and environmental risk modeling
• Environmental software development

• Research Professor, Civil and Environmental Engineering, Portland State University (2018 – present)
• Adjunct Professor, Georgraphy, Portland State University (2021 – present)
• Adjunct Professor, Civil and Environmental Engineering, Mississippi State University (2007 – 2016)
• Adjunct Professor, Civil and Environmental Engineering, Jackson State University (2008 – 2016)
• Research Assistant, Biosystems Engineering, Clemson University (1995 - 1998)
• Senior Scientist, LimnoTech, ERDC Environmental Laboratory (2002 – present)
• Principal Environmental Systems Modeler, Concurrent Technologies Corporation (2001 - 2002)
• Project Scientist/Interim Supervisor of EPA Center for Subsurface Modeling Support, Robert S. Kerr    Environmental Research Center (1999 - 2001)

• American Society of Agricultural and Biological Engineers (ASABE)
   Hydrology Group
• American Geophysical Union (AGU)
   Water Quality Committee
• American Society of Civil Engineers (ASCE)
   EWRI TMDL Analysis and Modeling Task Committee
• International Association of Hydrologic Science (IAHS)
• American Water Resources Association (AWRA)
• American Institute of Hydrology (AIH)
   Board Director of Academic Affairs and Chair of Board of Examination (2020 - 2024)
• International Water Association (IWA)
• California Water and Environment Modeling Forum (CWEMF)
• Water Environment Federation (WEF)