Environmental Sciences

Environmental Sciences Experts

Joseph Hughes

The U.S. Geological Survey
United States Virgin Islands


Dr. Joseph Hughes is a hydrologist with the U.S. Geological Survey Integrated Modeling and Prediction Division in Reston, Virginia. He completed his B.S. and Ph.D. at the University of South Florida and his M.S. at the University of Michigan. Prior to working at the U.S. Geological Survey, Dr. Hughes worked for a number of consulting firms including DHI Water and Environment and Arcadis Geraghty and Miller. Dr. Hughes has extensive experience simulating surface water and ground water interactions, variably saturated groundwater flow, groundwater flow in variable-density environments, and surface water and ground water quality at local and regional spatial scales. Dr. Hughes specializes in the development of of numerical simulation codes to solve surface-water flow, groundwater flow, and advective-dispersive transport equations.

Research Interest

computational methods groundwater surface water (non-marine) mathematical simulation saltwater intrusion


  • Documentation for the “XT3D” option in the Node Property Flow (NPF) Package of MODFLOW 6

  • Documentation for the MODFLOW 6 framework

  • Documentation for the MODFLOW 6 Groundwater Flow Model

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