Advances in Modeling Groundwater Flow and Transport with MODFLOW


MODFLOW is a popular open-source groundwater modeling software program developed, supported, and maintained by the U.S. Geological Survey. The MODFLOW program, first released over 35 years ago, has evolved into rich suite of software programs for the simulation of groundwater flow, solute transport, and a wide range of other groundwater related processes.

In 2017, the U.S. Geological Survey released a new core version of the MODFLOW program. This new version, called MODFLOW 6 (the sixth core version), extends the core MODFLOW capabilities to include robust solutions for complex water table problems, support for generalized meshes with focused resolution within areas of interest, and support for multiple models and multiple types of models within the same simulation. In addition to the Groundwater Flow Model, MODFLOW 6 now contains a Groundwater Transport Model, which can run simultaneously with the flow model or as a separate simulation using the results from a previous groundwater flow simulation.

The purpose of this presentation is to describe the MODFLOW suite of programs and highlight some of the new capabilities currently available and under development for MODFLOW 6.

This is the video from a presentation given on Wednesday, February 3, 2021 from the CLU-IN website, you can find more about the event and other events on this website:

You can download the webinar slides from this link.


Christian Langevin, Ph.D.Christian Langevin, Ph.D., USGS (

Dr. Christian Langevin is a research hydrologist with the U.S. Geological Survey Earth Systems Modeling Branch. Dr. Langevin is the USGS caretaker for the MODFLOW program, which is used worldwide to simulate groundwater processes. His present work focuses on development and support of MODFLOW and other related programs, such as FloPy, SEAWAT, and MT3D-USGS. Dr. Langevin has over 30 years of experience modeling groundwater flow, solute and heat transport, and coastal groundwater issues, such as saltwater intrusion, submarine groundwater discharge, deep-well injection, aquifer storage and recovery, and coastal wetland dynamics.


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