Standard - basic 3D groundwater flow and contaminant transport modeling, calibration and optimization
Advanced - includes Monte Carlo versions of MODFLOW, MODPATH and MT3D, plus some additional features:
- Recharge/ET memory compression
- Support for the HUF Package (Hydrogeologic Unit Flow)
- Support for SWIFT
- Monte Carlo modeling for analysis of uncertainty
- Pest's SVD Assist automation
- Pest's Null Space Monte Carlo technique
- Conduit Flow Process (CFP) for modeling karst systems
- SWI Package for modeling Salt Water Intrusion
- Support for the TMP1 Package
- 64-bit option
- MODFLOW-USGS Submodels
Professional - includes everything in the Advanced version, along with the GW3D visualization tool, AquiferWin32 and WinFlow.
Premium - includes everything in the Professional version, along with the SAMG Solver.