The U.S. Geological Survey
United States Virgin Islands
Dr. Christian Langevin is a research hydrologist with the U.S. Geological Survey Office of Ground Water in Reston, VA. He began his career with the USGS in 1998 after completing his M.S. and Ph.D. at the University of South Florida in Tampa and his B.S. at the University of Wisconsin at Madison. His first project with the USGS involved quantifying submarine groundwater discharge to a coastal marine estuary. As part of this project, he worked to develop and publish the SEAWAT computer program. Since its first official release in 2002, Dr. Langevin and his colleagues have continued to update SEAWAT and add new capabilities, such as the ability to represent simultaneous solute and heat transport. His present research for the Office of Groundwater centers on development, testing and application of MODFLOW, SEAWAT, and other numerical modeling programs.
groundwater saltwater intrusion
Dausman, A., Langevin, C.D., Thorne, D., Sukop, M.C., 2009. Six benchmark problems for testing heat and solute transport with variable viscosity using SEAWAT Version 4: U.S. Geological Survey Scientific Investigations Report 2009-5028,
Yager, R.M., Misut, P.E., Langevin, C.D., and Parkhurst, D.L., 2009. Brine migration from a flooded salt mine in the Genesee Valley, Livingston County, New York: Geochemical modeling and simulation of variable-density flow: U.S. Geological Survey Professional Paper 1767, 59 p
Hughes, J.D., Langevin, C.D., Chartier, K.L., and White, J.T., 2012, Documentation of the Surface-Water Routing (SWR1) Process for modeling surface-water flow with the U.S. Geological Survey Modular Groundwater Model (MODFLOW-2005), U.S. Geological Survey Techniques and Methods 6-A40