USGS - science for a changing world

USGS Groundwater Information

*  Home *  Data & Information *  Publications *  Methods & Modeling *  Selected Topics *  Programs *  About *  Contact Us

SEAWAT

New & Noteworthy

Press Releases RSS

USGS in Your State

USGS Water Science Centers are located in each state.

 [Map: There is a USGS Water Science Center office in each State.] Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii and Pacific Islands New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

Water Software > Groundwater Software > MODFLOW and Related Programs > SEAWAT

SEAWAT: A Computer Program for Simulation of Three-Dimensional Variable-Density Ground-Water Flow and Transport

SEAWAT Version 4 Overview

SEAWAT is a generic MODFLOW/MT3DMS-based computer program designed to simulate three-dimensional variable-density groundwater flow coupled with multi-species solute and heat transport. The program has been used for a wide variety of groundwater studies including those focused on brine migration in continental aquifers as well as those focused on saltwater intrusion in coastal aquifers. SEAWAT uses the familiar structure of MODFLOW and MT3DMS. Thus, most of the commonly used pre and post-processors can be used to create SEAWAT datasets and visualize results. The MODFLOW concepts of "packages" and "processes" are retained in SEAWAT, which allows the program to work with many of the MODFLOW-related software programs, such as MODPATH, ZONEBUDGET, and parameter estimation programs. SEAWAT is a public domain computer program. The source code and software are distributed free of charge by the U.S. Geological Survey (USGS).

SEAWAT Version 4 is a replacement for SEAWAT-2000. SEAWAT-2000 users are encouraged to use this new version, even if the new features are not required for a particular application. SEAWAT Version 4 is backward compatible with datasets created for SEAWAT-2000 and, therefore, SEAWAT-2000 is no longer supported or maintained.

What's New in Version 4

SEAWAT Version 4 is the most recent SEAWAT release, and like SEAWAT-2000, Version 4 is based on MODFLOW-2000 and MT3DMS. SEAWAT Version 4 retains all of the functionality of SEAWAT-2000 and is backward compatible with SEAWAT-2000 datasets. SEAWAT Version 4 includes the following new features:

  • Effects of viscosity variations on groundwater flow can be represented with the Viscosity (VSC) Package.
  • Unique diffusion coefficients can be entered for each MT3DMS component. This allows thermal diffusivity to be used for the temperature component, and molecular diffusion coefficients to be used for solute species.
  • Fluid density and viscosity can be calculated as a function of one or more MT3DMS species.
  • Additional options are available for specifying the density value associated with constant-head (CHD) boundaries.
  • New options and program redesign allow for faster execution times.

Previous SEAWAT versions are also available for download from this site; however, these versions are no longer maintained, updated, or supported. Users are encouraged to use the most recent version of SEAWAT as it may contain fixes and improvements that are not included in older versions.

SEAWAT Information and Downloads

Point of Contact

Support is provided for correcting bugs and clarification of how SEAWAT is intended to work. Only limited assistance can be provided for applying SEAWAT to specific problems by contacting the point of contact listed below:

Christian Langevin
U.S. Geological Survey (USGS) Office of Groundwater
411 National Center
12201 Sunrise Valley Drive
Reston, VA 20192

Continued development and support of the SEAWAT program is funded by the USGS Groundwater Resources Program.

Related USGS Software Resources

Other USGS Groundwater Software

The USGS develops groundwater RSS, water-quality, surface-water, and other water-resources software for use by the USGS in fulfilling its mission. Most of this software is available online for download at no charge.

Disclaimers and Notices

Please refer to the USGS Software User Rights Notice for complete use, copyright, and distribution information. The USGS provides no warranty, expressed or implied, as to the correctness of the furnished software or the suitability for any purpose. The software has been tested, but as with any complex software, there could be undetected errors. Users who find errors are requested to report them to the USGS.

References to non-USGS products, trade names, and (or) services are provided for information purposes only and do not constitute endorsement or warranty, express or implied, by the USGS, U.S. Department of Interior, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy.


Note: Some or all of this information is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of the free Adobe Reader from the Adobe web site. [Link exits USGS] Visit http://www.adobe.com/accessibility/ [Link exits USGS] for free tools that allow visually impaired users to read PDF files.

USGS Home Water Climate and Land Use Change Core Science Systems Ecosystems Energy and Minerals Environmental Health Natural Hazards

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://water.usgs.gov/ogw/seawat/index.html
Page Contact Information: Contact the USGS Office of Groundwater
Page Last Modified: Wednesday, 01-Oct-2014 02:38:49 EDT