Clifford I Voss, Ph.D.


Recent Accomplishments


  • Princeton University   09/1973 – 10/1978   Water Resources/Civil Engineering  PhD 1978
  • Princeton University   09/1973 – 06/1975   Hydrology/Civil Engineering             MA, MSE 1975  
  • Boston College           09/1971 – 06/1973   Geophysics                                    MS Program    
  • Bucknell University     09/1967 – 06/1971   Physics                                           BS 1971         

Professional Studies/Experience

  • Dr. Voss is a senior scientist with the hydrological research program of the U.S. Geological Survey (USGS).
  • He has over 30 years of project management, implementation, field and research experience in groundwater systems, including: computer model development and application of models to scientific evaluation of hydrogeologic systems, groundwater resources development and protection, coastal groundwater resources, and the use of the subsurface for energy production and waste isolation.
  • He is recognized as an international expert on groundwater modeling.
  • He consults extensively on groundwater system evaluation and management and lectures worldwide on these and related subjects.
  • The practical methodology and models he developed are in standard use worldwide in subsurface assessment. These are aiding in management of the quantity and quality of groundwater resources, in evaluation of human impacts on the subsurface environment, and for developing deeper understanding of hydrogeologic processes.
  • Nuclear waste repository safety (Germany, Sweden, Japan)
  • Transboundary water resource management (Nubian Aquifer of Egypt, Libya, Sudan, Chad)
  • Sustainability of water supply (arsenic-free groundwater supply from Bengal Aquifer of India, Bangladesh)
  • Groundwater management in coastal areas subject to saltwater intrusion (USA)
  • Evaluation of water resources emergency (2004 tsunami in Thailand)
  • Development of computer simulation methodology for groundwater hydrology with freeze/thaw and application to ground-ice and permafrost studies in cold regions
  • Since 1981 –Head of USGS Research Project “Subsurface Transport Processes”. - Research on theoretical and field investigations in quantitative hydrogeology, subsurface flow and transport systems, transport in heterogeneous media, and development of practical methodology and subsurface hydrology simulation models: SUTRA and SutraSuite code development and support; Flow and transport in variable-density subsurface fluids including seawater and brine, benchmark development; Cold-regions hydrology with freeze/thaw, simulation model development and climate-driven evolution; Inverse modeling, network design, optimization of ground-water systems; Hydrogeology of fractured crystalline rock.
  • Subsurface Resource Management: with focus on nuclear waste repository siting, safety and performance (Sweden, Germany, Japan); coastal aquifers and seawater intrusion management worldwide; transboundary aquifer management (India, Bangladesh; Egypt, Libya, Chad, Sudan); cold-regions hydrology management (Alaska).
  • National and international consulting, teaching, and organization of international scientific congresses.


  •  07/90-09/91 – Visiting Scientist, SGAB (Swedish Geological Co.) Uppsala, Sweden.
  •  01/85-06/85 – Visiting Associate Professor, Dept of Geology and Geophysics, University of Hawaii.

Professional societies/affiliations/committees/editorial boards

  • Dr. Voss is Executive Editor of - Hydrogeology Journal - official journal of the International Association of Hydrogeologists (since 1994).
  • Since 1994 – Executive Editor of Hydrogeology Journal, Official journal of IAH. - Leads international scientific forum for hydrogeology and its co-disciplines that includes articles on theoretical advances and practical applications and that promotes scientific submissions from developing countries. Manages all aspects of scientific journal publication: direction, scope and policy; staffing of Editorial Office, Editors, and the Editorial Board of Associate Editors; organizes annual theme issue; and coordinates work of publisher, IAH Executive Committee, and journal staff. 
  • Amer Geophys. Union (AGU);
  • Geological Society America (GSA);
  • Intl Assoc Hydrogeologists (IAH).

Honors, awards, recognition, elected offices

  • Dr. Voss was selected as the 2015 Birdsall-Dreiss Distinguished Lecturer by the Geological Society of America (GSA).
  • 1990- NWWA-AGWSE Special Recognition Award, Association of Groundwater Scientists & Engineers
  • 1998- Elected a Fellow - Geological Society America (GSA)
  • 2005- IAH Presidents’ Award, International Association of Hydrogeologists
  • 2014- Selected as 2015 Birdsall-Dreiss Distinguished Lecturer - Geological Society of America (GSA)