modflow-gui(1) U.S. Geological Survey (wrdapp) modflow-gui(1) NAME modflow-gui - Preprocessor and postprocessor graphical-user interfaces for preparing MODFLOW-96 and MOC3D input data and viewing model output for use within Argus Open Numerical Environments (Argus ONE) ABSTRACT MODFLOW-GUI is a graphical preprocessor and postprocessor for the U.S. Geological Survey modular, three-dimensional, finite- difference, ground-water flow model (MODFLOW-96) and solute- transport model (MOC3D). MODFLOW-GUI is implemented as plug-in extensions (PIEs) for use with Argus ONE version 4.1, revision t or later. Although Argus ONE runs on a variety of computing platforms, the MODFLOW-GUI PIEs are only available for systems running Microsoft Windows 9x or NT. Note: The Argus ONE interface only works with MODFLOW-96 and not with earlier versions of MODFLOW. MODFLOW-GUI supports the following packages: BAS5, BCF5, WEL5, RIV5, DRN5, GHB5, RCH5, EVT5, SOR5, SIP5, PCG2, DE4, and MOC3D. The following capabilities are NOT yet supported: STR1, HFB1, CHD1, IBS1, RES1, TLK1, GFD1, and MODPATH. HISTORY Version 2.0 98/07/14 - Addition of MOC3D solute-transport model; several cosmetic changes. Version 1.41 97/08/12 - Error corrected that occurred when considering a confined aquifer and a transient simulation. Version 1.4 1997/07/23 - Error corrected in export of storativity for confined aquifers and in export of information for time- variable and steady stresses. Specific data files can be exported. Selected geospatial information is checked for errors upon exporting. Version 1.3 1997/06/02 - Error corrected in export of vertical conductance. Problem corrected in postprocessing three- dimensional surfaces. Version 1.2 1997/05/13 - Error corrected in handling of "unconfined" geologic units and in export of wetting threshold for "unconfined" and "convertible" geologic units. Version 1.1 1997/04/18 - Error corrected in handling of "convertible" geologic units. Problem with real-value input fields corrected. Units corrected in layer menu. Default values in Misc. Controls and PCG Solver dialog boxes changed. Version 1.0 1997/03/14 - Initial release. 12 August 1998 1 modflow-gui(1) U.S. Geological Survey (wrdapp) modflow-gui(1) DATA REQUIREMENTS In order to use MODFLOW-96, initial conditions, hydraulic properties, and stresses must be specified for every model cell in the finite-difference grid. OUTPUT OPTIONS Output produced by the MODFLOW-GUI preprocessor is a complete set of files for use with MODFLOW-96 and MOC3D. SYSTEM REQUIREMENTS MODFLOW-GUI is compiled for use with Argus ONE version 4.1, revision t or later, on personal computers running Microsoft Windows 9x or NT. DOCUMENTATION Shapiro, A.M., Margolin, J., Dolev, S., and Ben-Israel, Y., 1997, A graphical-user interface for the U.S. Geological Survey modular three-dimensional finite-difference ground-water flow model (MODFLOW-96) using Argus Numerical Environments: U.S. Geological Survey Open-File Report 97-121, 50 p. Hornberger, G.Z., and Konikow, L.F., 1998, Addition of MOC3D solute- transport capability to the U.S. Geological Survey MODFLOW-96 graphical-user interface using Argus Open Numerical Environments: U.S. Geological Survey Open-File Report 98-188, 30 p. RELATED DOCUMENTATION Harbaugh, A.W., and McDonald, M.G., 1996, User's documentation for MODFLOW-96, an update to the U.S. Geological Survey modular finite-difference ground-water flow model: U.S. Geological Survey Open-File Report 96-485, 56 p. McDonald, M.G., and Harbaugh, A.W., 1988, A modular three- dimensional finite-difference ground-water flow model: U.S. Geological Survey Techniques of Water-Resources Investigations, book 6, chap. A1, 586 p. Konikow, L.F., Goode, D.J., and Hornberger, G.Z., 1996, A three- dimensional method-of-characteristics solute-transport model (MOC3D): U.S. Geological Survey Water-Resources Investigations Report 96-4267, 87 p. CONTACTS Operation and distribution: U.S. Geological Survey Hydrologic Analysis Software Support Program 437 National Center Reston, VA 20192 h2osoft@usgs.gov Official versions of U.S. Geological Survey water-resources analysis software are available for electronic retrieval via the World Wide Web (WWW) at: 12 August 1998 2 modflow-gui(1) U.S. Geological Survey (wrdapp) modflow-gui(1) http://water.usgs.gov/software/ and via anonymous File Transfer Protocol (FTP) from: water.usgs.gov (path: /pub/software). The WWW page and anonymous FTP directory from which the MODFLOW-GUI software can be retrieved are, respectively: http://water.usgs.gov/software/modflow-gui.html --and-- /pub/software/ground_water/modflow-gui If you would like to obtain the price of and (or) order paper copies of USGS reports, contact the USGS Branch of Information Services at: USGS Information Services Box 25286 Denver Federal Center Denver, CO 80225 To inquire about Open-File Reports or Water-Resources Investigations Reports: Tel: 303-202-4200; Fax 303-202-4695 To inquire about other USGS reports: Tel: 303-202-4700; Fax 303-202-4693 SEE ALSO modflw96(1) - Modular three-dimensional finite-difference ground-water flow model moc3d(1) - Three-dimensional method-of-characteristics ground-water flow and transport model 12 August 1998 3