Capabilities in the Current Release
This current MODFLOW 6 release synthesizes many of the capabilities in existing MODFLOW variants:
MODFLOW-2005 — the GWF Model contains revisions of the commonly used flow packages, stress packages, and advanced stress packages
MODFLOW-NWT — the GWF Model supports an optional Newton-Raphson approach for water table aquifers
MODFLOW-USG — GWF Models can be developed using regular MODFLOW grids or unstructured grids
MODFLOW-LGR — any number of GWF Models can be specified for a single simulation; these GWF Models are tightly coupled at the matrix level
MODFLOW-CDSS — multiple stress and advanced stress packages of the same type can be specified for a single GWF Model
MT3D/MT3D-USGS — the GWT Model simulates solute transport for a single chemical species
SEAWAT — the GWF Model contains a Buoyancy Package for simulating variable-density groundwater flow. Fluid density can be calculated from concentrations in a coupled GWT Model
MODPATH 7 – the PRT Model simulates advective particle tracking in a groundwater flow field
For MODFLOW users with existing models, the MODFLOW 6 distribution includes a conversion program that will translate a MODFLOW-2005, MODFLOW-NWT, or MODFLOW-LGR (Version 2) model into the MODFLOW 6 format.
Previous MODFLOW Core Versions
Supported Versions
The following previous Core Versions of MODFLOW are provided by the USGS but are no longer actively developed:
MODFLOW-2005
Superseded Versions
The following software is not actively supported by the USGS. The software has been superseded by MODFLOW 6. The software versions below are provided online for historical reference only, and the pages may contain outdated information or broken links.
MODFLOW-2000
MODFLOW-96
MODFLOW-88
