Freedom251 › Groundwater Modeling Software
MOC3D
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| MOC3D | Free download · Single dissolved chemical constituent · Default dimensions up to 20,000 cells and 200,000 particles | Free |
As usgs.gov lists them, read 14 Nov 2026. The maker's own page has the final word.
Facts from MOC3D's own pages
- Additional modeling
- It can simulate groundwater age transport, double porosity, and zero-order growth or loss. · water.usgs.gov, 14 Nov 2026
- Associated interface
- The USGS identifies MODFLOW-GUI as a graphical pre- and post-processor for use with MOC3D within Argus ONE. · water.usgs.gov, 14 Nov 2026
- Capacity
- By default, MOC3D is dimensioned for models with up to 20,000 cells and 200,000 particles. · water.usgs.gov, 14 Nov 2026
- Current listed version
- The USGS page lists MOC3D version 3.52, dated January 2004. · water.usgs.gov, 14 Nov 2026
- Download formats
- The MOC3D page lists Sun and DOS downloads and a Sun source-code-only package. · water.usgs.gov, 14 Nov 2026
- Input requirements
- The model requires initial conditions, boundary conditions, aquifer properties at each node, and grid descriptors. · water.usgs.gov, 14 Nov 2026
- Method
- MOC3D integrates with MODFLOW and uses particle tracking for advective transport. · water.usgs.gov, 14 Nov 2026
- Purpose
- MOC3D simulates three-dimensional solute transport in flowing groundwater. · water.usgs.gov, 14 Nov 2026
- Support contact
- The documentation identifies the USGS Hydrologic Analysis Software Support Team and provides [email protected] as its contact. · water.usgs.gov, 14 Nov 2026
- Systems
- The documentation reports use on UNIX-based computers and DOS-based 386-or-greater computers with a math coprocessor and 8 MB of memory. · water.usgs.gov, 14 Nov 2026
- Training
- The documentation lists an annual USGS National Training Center course on modeling transport of groundwater solutes. · water.usgs.gov, 14 Nov 2026
- Transport processes
- It models advective transport, dispersion, mixing, and simple chemical reactions such as linear sorption and decay. · water.usgs.gov, 14 Nov 2026
Where MOC3D stands on Freedom251
- Groundwater Modeling Software#4 of 11