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SEAWAT: A Computer Program for Simulation of Three-DimensionalVariable-Density Ground-Water Flow

By Weixing Guo (CDM Missimer, Fort Myers, Florida) and
Christian D. Langevin (U.S. Geological Survey, Fort Lauderdale, Florida)

Overview

The SEAWAT program was developed to simulate three-dimensional, variable- density, transient ground-water flow in porous media. The source code for SEAWAT was developed by combining MODFLOW and MT3DMS into a single program that solves the coupled flow and solute-transport equations. The SEAWAT code follows a modular structure, and thus, new capabilities can be added with only minor modifications to the main program. SEAWAT reads and writes standard MODFLOW and MT3DMS data sets, although some extra input may be required for some SEAWAT simulations. This means that many of the existing pre- and post-processors can be used to create input data sets and analyze simulation results. Users familiar with MODFLOW and MT3DMS should have little difficulty applying SEAWAT to problems of variable-density ground-water flow.

Information & Downloads

• Summary of the SEAWAT code
  • History
  • Technical Support
  • Disclaimer
• Download version 2.12 software code, user's guide, and examples (7.07mb ZIP file)
• User's Guide to SEAWAT version 2.12 (USGS TWRI Book 6 Chapter A7)
  • Readme file
• Published reports and articles using the SEAWAT code

The SEAWAT program was developed with the support of the USGS Place Based Science Program and the USGS Groundwater Resources Program.