With the ability to simulate groundwater and surface water interactions, and the added capability of calculating changes to groundwater chemistry, groundwater professionals now have a complete set of tools necessary for addressing water quality, groundwater supply, and source water protection initiatives.
MODFLOW-2000 - world standard for groundwater flow simulations
MODFLOW-2005 - three-dimensional finite-difference groundwater-model, 2005 version
MODPATH - standard package for forward and reverse particle tracking
Zone Budget - for sub-regional water budget calculations
MT3DMS - for multi-species contaminant transport simulations
MT3D99 - an enhanced version of MT3DMS, that includes support for implicit solver, TVD Solution scheme, dual-porosity advection-diffusion, Non-equilibrium Sorption and Monod Kinetics, and Multispecies Reactions, including First-Order Parent-Daughter chain reactions, and Instantaneous Reactions among species.
MNW (Multi-Node Well) - designed to help simulate wells with well screens that span multiple layers.
RT3D - for reactive transport simulations
PHT3D – a multi-component transport model for three-dimensional reactive transport in saturated porous media. It couples the two existing and widely used computer programs, the solute transport model MT3DMS and the USGS geochemical code PHREEQC-2.
SEAWAT-2000 - the latest USGS modeling code designed to address three-dimensional, variable-density, transient groundwater flow conditions
MGO - for determining the optimal well pumping and/or injection rates at one or more wells, in order to achieve a specific objective while maintaining reasonable system responses.
VMOD 3D-Explorer - 3D visualization and animation
WinPEST - automated calibration and sensitivity analysis
GMG (Geometric Multi-Grid) Solver Integration - latest USGS solver designed to optimize memory usage and reduce model run times
SAMG (Systems Algebraic Multi-Grid) - an advanced solver ideally suited for large, complex models, now optimized to run with MODFLOW-2000 or SEAWAT-2000 projects
Stream Routing Package - suited for simulating the effects of surface water/groundwater interactions
MIKE11 - The basic river network/channel modeling component of MIKE 11 is now integrated, providing the tools for integrated surface water - groundwater flow.
Add-on software:
Visual MODFLOW 3D-Builder - Visual MODFLOW 3D-Builder prepares a wide-range of output data for
Visual MODFLOW within a single modeling environment for simulating your
groundwater and surface water interactions.
MODFLOW-SURFACT - Three-dimensional finite-difference variably-saturated flow or soil vapor flow simulations (supports flow only)