Christian Langevin
Biography
Dr. Christian Langevin is a research hydrologist with the U.S. Geological Survey Earth Systems Modeling Branch. He presently sits in the Mounds View Office in Minnesota, which is part of the Upper Midwest Water Science Center. Dr. Langevin is the primary USGS contact for the MODFLOW program, which is used worldwide to simulate groundwater flow. His present research focuses on development and support of the MODFLOW 6 program and other related programs, such as FloPy, SEAWAT, MT3D-USGS, MODFLOW-USG, and MODFLOW-2005. Dr. Langevin 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.
REFEREED ARTICLES
Langevin, C.D., Panday, Sorab, and Provost, A.M., 2020, Hydraulic-head formulation for density-dependent flow and transport, Groundwater, https://doi.org/10.1111/gwat.12967.
Provost, A.M., Werner, A.D., Post, V.E.A., Michael, H.A., and Langevin, C.D., 2018, Rebuttal to “The case of the Biscayne Bay and aquifer near Miami, Florida: density-driven flow of seawater or gravitationally driven discharge of deep saline groundwater?” by Weyer (Environ Earth Sci 2018, 77:1–16), Environ Earth Sci (2018) 77: 710. https://doi.org/10.1007/s12665-018-7832-5.
Panday, Sorab, Bedekar, Vivek, and Langevin, C.D., 2018, Impact of Local Groundwater Flow Model Errors on Transport and a Practical Solution for the Issue. Groundwater, 56: 667-672. doi:10.1111/gwat.12627
Bakker, M., Post, V., Langevin, C. D., Hughes, J. D., White, J. T., Starn, J. J. and Fienen, M. N., 2016, Scripting MODFLOW model development using Python and FloPy. Groundwater 54 p. 733-739. https://doi:10.1111/gwat.12413.
Feinstein, D.T., Fienen, M.N., Reeves, H.W., and Langevin, C.D., 2016, A semi-structured MODFLOW-USG model to evaluate local water sources to wells for decision support. Groundwater 54 p. 532-544. https://doi:10.1111/gwat.12389.
Hughes, J.D., Langevin, C.D., and White, J.T., 2014, MODFLOW-based coupled surface water routing and groundwater-flow simulation. Groundwater 53 p. 452-463. https://doi:10.1111/gwat.12216.
Konikow, L.F., Akhavan, M., Langevin, C.D., Michael, H.A., and Sawyer, A.H., 2013, Seawater circulation in sediments driven by interactions between seabed topography and fluid density. Water Resources Research, Volume 49, Issue 3 p. 1386-1399. DOI: 10.1002/wrcr.20121.
Morway, E.D., Niswonger, R.G., Langevin, C.D., Bailey, R.T., and Healy, R.W., 2013. Modeling variably saturated subsurface solute transport with MODFLOW-UZF and MT3DMS. Ground Water 51 p. 237-251. doi: 10.1111/j.1745-6584.2012.00971.x.
Langevin, C.D., and Zygnerski, M., 2012. Effect of sea-level rise on salt water intrusion near a coastal well field in southeastern Florida. Ground Water, DOI: 10.1111/j.1745-6584.2012.01008.x.
Morway, E.D., Niswonger, R.G., Langevin, C.D., Bailey, R.T., and Healy, R.W., 2012. Modeling variably saturated subsurface solute transport with MODFLOW-UZF and MT3DMS. Ground Water. doi: 10.1111/j.1745-6584.2012.00971.x
Langevin, C.D., and Panday, S., 2012. Future of groundwater modeling. Ground Water 50 no. 3: 334-339. DOI: 10.1111/j.1745-6584.2012.00937.x
Panday, S., and Langevin, C.D., 2012. Improving sub-grid scale accuracy of boundary features in regional finite-difference models. Advances in Water Resources 41: 65-75.
La Licata, I., Langevin, C.D., Dausman, A.M., and Alberti, L., 2011. Effect of tidal fluctuations on transient dispersion of simulated contaminant concentrations in a coastal aquifer. Hydrogeology Journal, Vol. 18, no. 1: 25-38. DOI: 10.1007/s10040-011-0763-9.
Hughes, J.D., Decker, J.D., and Langevin, C.D., 2011. Use of upscaled elevation and surface roughness data in two-dimensional surface water models. Advances in Water Resources, Vol. 34, no. 9: 1151-1164. DOI:10.1016/j.advwatres.2011.02.004.
Herckenrath, D. Langevin, C.D., and Doherty, J., 2011. Predictive uncertainty analysis of a saltwater intrusion model using null-space Monte Carlo. Water Resources Research, Vol. 47, W05504, doi: 10.1029/2010WR009342.
Mulligan, A.E., Langevin, C.D., and Post, V., 2011. Tidal boundary conditions in SEAWAT Ground Water 49: 866-879, DOI: 10.1111/j.1745-6584.2010.00788.x
Dausman, A. M., Doherty, J., Langevin, C. D. and Sukop, M. C., 2010. Quantifying data worth toward reducing predictive uncertainty. Ground Water, 48: 729–740. doi: 10.1111/j.1745-6584.2010.00679.x
Langevin, C. D., Dausman, A. M. and Sukop, M. C., 2010. Solute and heat transport model of the Henry and Hilleke laboratory experiment: Ground Water, 48: 757–770. doi: 10.1111/j.1745-6584.2009.00596.x
Dausman, A.M., Doherty, J., Langevin, C.D., and Dixon, J., 2010. Hypothesis testing of buoyant plume migration using a highly parameterized variable-density groundwater model at a site in Florida, USA. Hydrogeology Journal vol. 18, no. 1: 147-160. DOI: 10.1007/s10040-009-0511-6.
Hughes, J.D., Langevin, C.D., and Brakefield-Goswami, L., 2010. Effect of hypersaline cooling canals on aquifer salinization: Hydrogeology Journal vol. 18, no. 1: 25-38. DOI 10.1007/s10040-009-0502-7.
Langevin, C.D., 2008. Modeling axisymmetric flow and transport: Ground Water vol. 46, no. 4:579-590.
La Licata, I., Langevin, C.D., Dausman, A.M., 2007, Effect of tidal fluctuations on contaminant transfer to the ocean, in Sanford, W., Langevin, C.D., Polemio, M., and Povinec. P., eds., 2007, A new focus on groundwater-seawater interactions: IAHS Publication 312, Oxfordshire, United Kingdom, p. 334-341.
Dausman, A.M., Langevin, C.D., Sukop, M.C., 2007, Simulation of submarine groundwater discharge salinity and temperature variations: implications for remote detection, in Sanford, W., Langevin, C.D., Polemio, M., and Povinec. P., eds., 2007, A new focus on groundwater-seawater interactions: IAHS Publication 312, Oxfordshire, United Kingdom, p. 272-280.
Langevin, C.D., Sanford, W., Polemio, M., and Povinec, P., 2007, Background and summary, in Sanford, W., Langevin, C.D., Polemio, M., and Povinec. P., eds., 2007, A new focus on groundwater-seawater interactions: IAHS Publication 312, Oxfordshire, United Kingdom, p. 3-10.
Langevin, C.D., Lebbe, L., Bakker, M., and Voss, C.I., 2007, Ground Water Readers' Forum: Twentieth salt water intrusion meeting planned for June 23 to 27, 2008, in Naples, Florida. Ground Water 46, no. 6: 657-658.
Swain, E.D., Langevin, C.D., and Wang, J.D., 2008. Utilizing spectral analysis of coastal discharge computed by a numerical model to determine boundary influence. Journal of Coastal Research, vol. 24, no. 6: 1418-1429.
Langevin, C.D., Sanford, W., Polemio, M., and Povinec, P., 2007, Background and summary, in Sanford, W., Langevin, C.D., Polemio, M., and Povinec. P., eds., 2007, A new focus on groundwater-seawater interactions: IAHS Publication 312, Oxfordshire, United Kingdom, p. 3-10.
Dausman, A.M., Langevin, C.D., Sukop, M.C., 2007, Simulation of submarine groundwater discharge salinity and temperature variations: implications for remote detection, in Sanford, W., Langevin, C.D., Polemio, M., and Povinec. P., eds., 2007, A new focus on groundwater-seawater interactions: IAHS Publication 312, Oxfordshire, United Kingdom, p. 272-280.
La Licata, I., Langevin, C.D., Dausman, A.M., 2007, Effect of tidal fluctuations on contaminant transfer to the ocean, in Sanford, W., Langevin, C.D., Polemio, M., and Povinec. P., eds., 2007, A new focus on groundwater-seawater interactions: IAHS Publication 312, Oxfordshire, United Kingdom, p. 334-341.
Thorne, D., Langevin, C.D., and Sukop, M.C., 2006. Addition of simultaneous heat and solute transport and variable fluid viscosity to SEAWAT: Computer and Geosciences vol. 32, 1758-1768.
Langevin, C.D., and Guo, W., 2006. MODFLOW/MT3DMS-based simulation of variable density ground water flow and transport: Ground Water vol. 44, no. 3:339-351.
Langevin, C.D., Swain, E.D., and Wolfert, M.A. 2005. Simulation of integrated surface-water/ground-water flow and salinity for a coastal wetland and adjacent estuary: Journal of Hydrology 314, 212-234.
Mao, X., Prommer, H., Barry, D.A., Langevin, C.D., Panteleit, B., and Li, L., 2006. Three-dimensional model for multi-component reactive transport with variable density groundwater flow: Environmental Modelling & Software vol. 21, no. 5:615-628.
Langevin, C.D., and Bean, D.M., 2005, Software Spotlight/Ground Water Vistas: A graphical user interface for the MODFLOW family of ground water flow and transport models. Ground Water 43, no. 2:1-4.
Bakker, M., Oude Essink, G.H.P., and Langevin, C.D., 2004, The rotating movement of three immiscible fluids - a benchmark problem. Journal of Hydrology 287, 270-278.
Langevin, C.D. 2003. Simulation of submarine ground water discharge to a marine estuary: Biscayne Bay, Florida. Ground Water 41, no. 6: 758-771.
Langevin, C.D. 2003. Stochastic ground water flow simulation with a fracture zone continuum model. Ground Water 41, no. 5: 587-601.
Stewart, M.T., and Langevin, C.D. 2000. Author's Reply. Ground Water 38, no. 1: 6-6.
Stewart, M.T., and Langevin, C.D., 1999. Post Audit of a numerical prediction of wellfield drawdown in a semiconfined aquifer system: Ground Water 37, no. 2:245-252.
Langevin, C.D., Stewart,M.T., and Beaudoin, C.M., 1998. Effects of dredge and fill canals on freshwater resources of small oceanic islands. An example from Big Pine Key, Florida: Ground Water 36, no. 3: 503-513.
PUBLISHED USGS REPORTS
Provost, A.M., Langevin, C.D., and Hughes, J.D., 2017, Documentation for the “XT3D” option in the Node Property Flow (NPF) Package of MODFLOW 6: U.S. Geological Survey Techniques and Methods 6–A56, 40 p., https://doi.org/10.3133/tm6A56.
Langevin, C.D., Hughes, J.D., Banta, E.R., Niswonger, R.G., Panday, Sorab, and Provost, A.M., 2017, Documentation for the MODFLOW 6 Groundwater Flow Model: U.S. Geological Survey Techniques and Methods 6–A55, 197 p., https://doi.org/10.3133/tm6A55.
Hughes, J.D., Langevin, C.D., and Banta, E.R., 2017, Documentation for the MODFLOW 6 framework: U.S. Geological Survey Techniques and Methods 6–A57, 42 p., https://doi.org/10.3133/tm6A57.
Bedekar, Vivek, Morway, E.D., Langevin, C.D., and Tonkin, Matt, 2016, MT3D-USGS version 1: A U.S. Geological Survey release of MT3DMS updated with new and expanded transport capabilities for use with MODFLOW: U.S. Geological Survey Techniques and Methods 6-A53, 69 p., https://dx.doi.org/10.3133/tm6A53.
Lien, Jyh-Ming, Liu, Guilin, and Langevin, C.D., 2015, GRIDGEN version 1.0—A computer program for generating unstructured finite-volume grids: U.S. Geological Survey Open-File Report 2014–1109, 26 p., https://doi.org/10.3133/ofr20141109.
Bakker, M., Schaars, F., Hughes, J.D., and Langevin, C.D., 2013, The sea water intrusion (SWI2) Package for modeling vertically-integrated variable density groundwater flow in regional aquifers with the U.S. Geological Survey Modular Groundwater Model (MODFLOW-2005). U.S. Geological Survey Techniques and Methods, 6-A46, 47 p.
Panday, Sorab, Langevin, C.D., Niswonger, R.G., Ibaraki, Motomu, and Hughes, J.D., 2013, MODFLOW-USG version 1: An unstructured grid version of MODFLOW for simulating groundwater flow and tightly coupled processes using a control volume finite-difference formulation: U.S. Geological Survey Techniques and Methods, book 6, chap. A45, 66 p.
Brakefield, L., Hughes, J.D., Langevin, C.D., and Chartier, K., 2013, Estimation of capture zones and drawdown at the Northwest and West Well Fields, Miami-Dade County, Florida, using an unconstrained Monte Carlo analysis: recent (2004) and proposed conditions: U.S. Geological Survey Open-File Report 2013–1086, 124 p., available online at http://pubs.usgs.gov/of/2013/1086.
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
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., also available online at http://pubs.usgs.gov/pp/pp1767/.
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, 72 p.
Wolfert-Lohmann, M.A., Langevin, C.D., Jones, S.A., Reich, C.D., Wingard, G.L., Kuffner, I.B., and Cunningham, K.J., 2008. U.S. Geological Survey science support strategy for Biscayne National Park and surrounding areas in Southern Florida: U.S. Geological Survey Open-File Report 2007-1288, 47 p.
Langevin, C.D., Thorne, D.T., Jr., Dausman, A.M., Sukop, M.C., and Guo, Weixing, 2007, SEAWAT Version 4: A Computer Program for Simulation of Multi-Species Solute and Heat Transport: U.S. Geological Survey Techniques and Methods Book 6, Chapter A22, 39 p.
Wang, J.D., Swain, E.D., Wolfert, M.A., Langevin, C.D., James, D.E., and Telis, P.A., 2007. Application of FTLOADDS to Simulate Flow, Salinity, and Surface-Water Stage in the Southern Everglades, Florida: U.S. Geological Survey Scientific Investigations Report 2007–5010, 112 p.
Dausman, A.M. and Langevin, C.D. 2005. Movement of the saltwater interface in the Surficial Aquifer System in response to hydrologic stresses and water-management practices, Broward County, Florida: U.S. Geological Survey Scientific Investigations Report 2004-5256.
Swarzenski, P.W., Charette, M., and Langevin, C.D. 2004. An autonomous, electromagnetic seepage meter to study coastal groundwater/surface water exchange: U.S. Geological Survey Open-File Report 2004-1369.
Langevin, C.D., Swain, E.D., and Wolfert, M.A. 2004, Simulation of integrated surface-water/ground-water flow and salinity for a coastal wetland and adjacent estuary, U.S. Geological Survey Open-File Report 2004-1097.
Langevin, C.D., Swain, E.D., Wang, J.D., Wolfert, M.A., Schaffranek, R.W., and Riscassi, A.L. 2004. Development of coastal flow and transport models in support of Everglades restoration: U.S. Geological Survey Fact Sheet 2004-3130.
Wolfert, M.A., Langevin, C.D., and Swain, E.D. 2004. Assigning boundary conditions to the Southern Inland and Coastal Systems (SICS) model using results from the South Florida Water Management Model (SFWMM): U.S. Geological Survey Open-File Report 2004-1195, 30 p.
Langevin, C.D., Shoemaker, W.B., and Guo, W. 2003. MODFLOW-2000, the U.S. Geological Survey modular ground-water model—Documentation of the SEAWAT-2000 version with the variable-density flow process (VDF) and the integrated MT3DMS Transport Process (IMT): U.S. Geological Survey Open-File Report 03-426, 43 p.
Guo, Weixing, and Langevin, C.D. 2002. User’s guide to SEAWAT: A computer program for simulation of three-dimensional variable-density ground-water flow: U.S. Geological Survey Techniques of Water Resources Investigations Book 6, Chapter A7, 79 p.
Guo, Weixing, and Langevin, C.D. 2002. User’s guide to SEAWAT: A computer program for simulation of three-dimensional variable-density ground-water flow: U.S. Geological Survey Open-File Report 01-434, 79 p.
Langevin, C.D. 2001. Simulation of ground-water discharge to Biscayne Bay, Southeastern Florida: U.S. Geological Survey Water-Resources Investigations Report 00-4251, 127 p.
BOOK CHAPTERS
Langevin, C.D., 2007. Section 2.1.2. Numerical simulation of submarine groundwater discharge: In Submarine Groundwater, Zektser, I.S., and Dzhamalov, R.G. (eds.), CRC Press.
Langevin, C.D., 2007. Section 4.6. Groundwater discharge to Biscayne Bay, Florida: In Submarine Groundwater, (eds.) I. Zektser and R. Dzhamalov, CRC Press.
Langevin, C.D., Oude Essink, G.H.P., Panday, S., Bakker, M., Prommer, H., Swain, E.D., Jones, W., Beach, M., and Barcelo, M. 2004. Chapter 3, MODFLOW-based tools for simulation of variable-density groundwater flow: In Coastal Aquifer Management: Monitoring, Modeling, and Case Studies, (eds.) A. Cheng and D. Ouazar, Lewis Publishers, p. 49-76.
Obeysekera, J., Kuebler, L., Ahmed, S., Chang, Miao-LI, Engel, V., Langevin, C., Swain, E., and Wan, Y., 2011. Use of Hydrologic and Hydrodynamic Modeling for Ecosystem Restoration. Critical Reviews in Environmental Science and Technology, 41: 6, 447-488
Science and Products
MODFLOW and Related Programs
MODFLOW is the USGS's modular hydrologic model. MODFLOW is considered an international standard for simulating and predicting groundwater conditions and groundwater/surface-water interactions. MODFLOW 6 is presently the core MODFLOW version distributed by the USGS. The previous core version, MODFLOW-2005, is actively maintained and supported as well.
Rebuttal to “The case of the Biscayne Bay and aquifer near Miami, Florida: density-driven flow of seawater or gravitationally driven discharge of deep saline groundwater?” by Weyer (Environ Earth Sci 2018, 77:1–16)
A recent paper by Weyer (Environ Earth Sci 2018, 77:1–16) challenges the widely accepted interpretation of groundwater heads and salinities in the coastal Biscayne aquifer near Miami, Florida, USA. Weyer (2018) suggests that the body of saltwater that underlies fresh groundwater just inland of the coast is not a recirculating wedge of seawater,...
Provost, Alden M.; Werner, Adrian D.; Post, Vincent E. A.; Michael, Holly A.; Langevin, Christian D.
Documentation for the MODFLOW 6 Groundwater Flow Model
This report documents the Groundwater Flow (GWF) Model for a new version of MODFLOW called MODFLOW 6. The GWF Model for MODFLOW 6 is based on a generalized control-volume finite-difference approach in which a cell can be hydraulically connected to any number of surrounding cells. Users can define the model grid using one of three discretization...
Langevin, Christian D.; Hughes, Joseph D.; Banta, Edward R.; Niswonger, Richard G.; Panday, Sorab; Provost, Alden M.
Documentation for the MODFLOW 6 framework
MODFLOW is a popular open-source groundwater flow model distributed by the U.S. Geological Survey. Growing interest in surface and groundwater interactions, local refinement with nested and unstructured grids, karst groundwater flow, solute transport, and saltwater intrusion, has led to the development of numerous MODFLOW versions. Often times,...
Hughes, Joseph D.; Langevin, Christian D.; Banta, Edward R.
Documentation for the “XT3D” option in the Node Property Flow (NPF) Package of MODFLOW 6
This report describes the “XT3D” option in the Node Property Flow (NPF) Package of MODFLOW 6. The XT3D option extends the capabilities of MODFLOW by enabling simulation of fully three-dimensional anisotropy on regular or irregular grids in a way that properly takes into account the full, three-dimensional conductivity tensor. It can also improve...
Provost, Alden M.; Langevin, Christian D.; Hughes, Joseph D.
MT3D-USGS version 1: A U.S. Geological Survey release of MT3DMS updated with new and expanded transport capabilities for use with MODFLOW
MT3D-USGS, a U.S. Geological Survey updated release of the groundwater solute transport code MT3DMS, includes new transport modeling capabilities to accommodate flow terms calculated by MODFLOW packages that were previously unsupported by MT3DMS and to provide greater flexibility in the simulation of solute transport and reactive solute transport...
Bedekar, Vivek; Morway, Eric D.; Langevin, Christian D.; Tonkin, Matthew J. Scripting MODFLOW model development using Python and FloPy
Graphical user interfaces (GUIs) are commonly used to construct and postprocess numerical groundwater flow and transport models. Scripting model development with the programming language Python is presented here as an alternative approach. One advantage of Python is that there are many packages available to facilitate the model development process...
Bakker, Mark; Post, Vincent E. A.; Langevin, Christian D.; Hughes, Joseph D.; White, Jeremy; Starn, Jeffrey; Fienen, Michael N. A semi-structured MODFLOW-USG model to evaluate local water sources to wells for decision support
In order to better represent the configuration of the stream network and simulate local groundwater-surface water interactions, a version of MODFLOW with refined spacing in the topmost layer was applied to a Lake Michigan Basin (LMB) regional groundwater-flow model developed by the U.S. Geological. Regional MODFLOW models commonly use coarse grids...
Feinstein, Daniel T.; Fienen, Michael N.; Reeves, Howard W.; Langevin, Christian D.
GRIDGEN Version 1.0: a computer program for generating unstructured finite-volume grids
GRIDGEN is a computer program for creating layered quadtree grids for use with numerical models, such as the MODFLOW–USG program for simulation of groundwater flow. The program begins by reading a three-dimensional base grid, which can have variable row and column widths and spatially variable cell top and bottom elevations. From this base...
Lien, Jyh-Ming; Liu, Gaisheng; Langevin, Christian D. MODFLOW-based coupled surface water routing and groundwater-flow simulation
In this paper, we present a flexible approach for simulating one- and two-dimensional routing of surface water using a numerical surface water routing (SWR) code implicitly coupled to the groundwater-flow process in MODFLOW. Surface water routing in SWR can be simulated using a diffusive-wave approximation of the Saint-Venant equations and/or a...
Hughes, Joseph D.; Langevin, Christian D.; White, Jeremy T. Effect of tidal fluctuations on transient dispersion of simulated contaminant concentrations in coastal aquifers
Variable-density groundwater models require extensive computational resources, particularly for simulations representing short-term hydrologic variability such as tidal fluctuations. Saltwater-intrusion models usually neglect tidal fluctuations and this may introduce errors in simulated concentrations. The effects of tides on simulated...
La Licata, Ivana; Langevin, Christian D.; Dausman, Alyssa M.; Alberti, Luca Effects of sea-level rise on salt water intrusion near a coastal well field in southeastern Florida
A variable-density groundwater flow and dispersive solute transport model was developed for the shallow coastal aquifer system near a municipal supply well field in southeastern Florida. The model was calibrated for a 105-year period (1900 to 2005). An analysis with the model suggests that well-field withdrawals were the dominant cause of salt...
Langevin, Christian D.; Zygnerski, Michael
Documentation of the seawater intrusion (SWI2) package for MODFLOW
The SWI2 Package is the latest release of the Seawater Intrusion (SWI) Package for MODFLOW. The SWI2 Package allows three-dimensional vertically integrated variable-density groundwater flow and seawater intrusion in coastal multiaquifer systems to be simulated using MODFLOW-2005. Vertically integrated variable-density groundwater flow is based on...
Bakker, Mark; Schaars, Frans; Hughes, Joseph D.; Langevin, Christian D.; Dausman, Alyssa M.
MODFLOW 6: USGS Modular Hydrologic Model
MODFLOW is a popular open-source groundwater flow model distributed by the U.S. Geological Survey.
MODFLOW-2005: USGS Three-Dimensional Finite-Difference Ground-Water Model
MODFLOW 6 is presently the core MODFLOW version distributed by the USGS, but MODFLOW-2005 (the previous core version) is still actively maintained and supported. MODFLOW-2005 simulates steady and nonsteady flow in an irregularly shaped flow system in which aquifer layers can be confined,...
FloPy: Python Package for Creating, Running, and Post-Processing MODFLOW-Based Models
FloPy is a Python package for creating, running, and post-processing MODFLOW-based models.
MODFLOW-USG: An Unstructured Grid Version of MODFLOW for Simulating Groundwater Flow and Tightly Coupled Processes Using a Control Volume Finite-Difference Formulation
MODFLOW-USG is an unstructured grid version of MODFLOW for simulating groundwater flow and tightly-coupled processes using a control volume finite-difference formulation.
GRIDGEN: A Program for Generating Unstructured Finite-Volume Grids
GRIDGEN is a program for generating layered quadtree grids for MODFLOW-USG.
SEAWAT: A Computer Program for Simulation of Three-Dimensional Variable-Density Ground-Water Flow and Transport
SEAWAT is a combined version of MODFLOW and MT3DMS for simulation of variable-density groundwater flow and transport.
Groundwater Modeling Software MODFLOW 6 Now Available
MODFLOW 6, the newest version of the world’s most widely used groundwater modeling software, is now available for download from the U.S. Geological Survey