MOC3D
The facts below are what the maker publishes about MOC3D, checked and dated. Our editors have not written about it yet.
Plans and prices
From MOC3D's own pricing page, checked 14 Nov 2026.
| Plan | Price | What it gives you |
|---|---|---|
| MOC3D | Free | Single dissolved chemical constituent · Default dimensions up to 20,000 cells and 200,000 particles · Free download |
The facts
Each one read from MOC3D's own pages, with the date it was checked.
What it does
- Additional modeling
- It can simulate groundwater age transport, double porosity, and zero-order growth or loss.checked 14 Nov 2026
- Associated interface
- The USGS identifies MODFLOW-GUI as a graphical pre- and post-processor for use with MOC3D within Argus ONE.checked 14 Nov 2026
- Capacity
- By default, MOC3D is dimensioned for models with up to 20,000 cells and 200,000 particles.checked 14 Nov 2026
- Current listed version
- The USGS page lists MOC3D version 3.52, dated January 2004.checked 14 Nov 2026
- Download formats
- The MOC3D page lists Sun and DOS downloads and a Sun source-code-only package.checked 14 Nov 2026
- Input requirements
- The model requires initial conditions, boundary conditions, aquifer properties at each node, and grid descriptors.checked 14 Nov 2026
- Method
- MOC3D integrates with MODFLOW and uses particle tracking for advective transport.checked 14 Nov 2026
- Purpose
- MOC3D simulates three-dimensional solute transport in flowing groundwater.checked 14 Nov 2026
- Support contact
- The documentation identifies the USGS Hydrologic Analysis Software Support Team and provides [email protected] as its contact.checked 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.checked 14 Nov 2026
- Training
- The documentation lists an annual USGS National Training Center course on modeling transport of groundwater solutes.checked 14 Nov 2026
- Transport processes
- It models advective transport, dispersion, mixing, and simple chemical reactions such as linear sorption and decay.checked 14 Nov 2026