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 a Principal Investigator of environmental and water resources engineering at PSU. He specializes in the development and application of watershed and environmental models. He has been working side-by-side with the Corps of Engineers team for the development of surface water quality, riparian vegetation, watershed, and multimedia environmental modeling capabilities. He is the primary author of water quality and contaminant modules that are currently coupled with HEC-RAS, HEC-ResSim, AdH, and GSSHA as their companion water quality models. He is a co-developer of the HEC-RAS's riparian vegetation simulation module and a contributor of 2D CE-QUAL-W2 model and ERDC multimedia contaminant and risk modeling systems for installations. Additionally, he has conducted a wide range of watershed and water quality modeling applications for many of the major US river systems - Minnesota River, Missouri River, Mississippi River, Patuxent River and Potomac River, Lehigh River system, St. John River, Sacramento River, San Joaquin River, Columbia and Snake River system. He has provided review and technical support for USACE, USBR, EPA and FEMA, conducted water quality modeling workshops and training. He serves on several committees in the ASCE, ASABE, AGU, AWRA, AIH and is the current Vice President for Academic Affairs and Chair of Board of Examination Committee of the AIH.

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

• Watershed hydrology and non-point source modeling
• HEC-RAS hydraulic and water quality modeling
• HEC-ResSim riverine and reservoir water quality modeling
• CE-QUAL-W2 riverine and reservoir modeling
• USBR 1D and 2D (SRH-1D, SRH-2D) hydraulic and sediment modeling
• 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)
   Hydrology Section - 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)
   Vice President for 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)