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MODFLOW-96

MODular three-dimensional finite-difference ground-water FLOW model--1996 updated version

Information

• Summary of MODFLOW-96
• Version history
• MODFLOW Fact Sheet (a short description of the MODFLOW model)
• UNIX or DOS installation instructions (README file)
• How to order U.S. Geological Survey printed documentation
• How to register to receive software update and enhancement notices

Software

Selection of the following options preceded by a binary icon retrieves a compressed UNIX tar file or a self-extracting DOS executable. A README file containing installation instructions is included with each of the software distribution files. There are separate README files for the UNIX and DOS distributions.

The Free Software Foundation's gunzip is necessary to uncompress the UNIX tar files available below. However, some World Wide Web browsers automatically uncompress retrieved files. Thus, running gunzip as stated in the installation instructions may be unnecessary.

MODFLOW-96 compiled for...

• Silicon Graphics Indigo (593K)
• Sun SPARCstation (Solaris) (648K)
• IBM-compatible PC, 386 or higher with math coprocessor (955K)

MODFLOW-96 source code for compilation under...

• UNIX (540K)
• DOS (582K)

Preprocessors and postprocessors

• CONTOUR
  A contouring program for gridded data
• MFI
  Data input program for MODFLOW, MODPATH, and MOC3D
• 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)
• MODPATH
  A particle-tracking postprocessor model for MODFLOW
• RADMOD
  A preprocessor to the program MODFLOW for simulation of axisymmetric problems
• ZONEBDGT
  Program for computing subregional water budgets for MODFLOW ground-water flow models

Documentation

• How to order U.S. Geological Survey printed documentation
• 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.
• 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.
  • User's Documentation, PostScript (358K)
  • User's Documentation, Portable Document Format (PDF) (138K)
• Harbaugh, A.W., and McDonald, M.G., 1996, Programmer'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 96-486, 220 p.
  • Programmer's Documentation, PostScript (873K)
  • Programmer's Documentation, Portable Document Format (PDF) (417K)

The following reports documenting MODFLOW packages are available on-line. Select the "Summary of MODFLOW-96" link above to see a complete listing of USGS reports documenting the MODFLOW model. Due to the date of their publishing, many of the reports are not available in electronic form.

• Leake, S.A., Leahy, P.P., and Navoy, A.S., 1994, Documentation of a computer program to simulate transient leakage from confining units using the modular finite-difference ground-water flow model: U.S. Geological Survey Open-File Report 94-59, 70 p.
  • TLK1 Package documentation, PostScript (1.7MB)
  • TLK1 Package documentation, Portable Document Format (PDF) (237K)
• Harbaugh, A.W., 1995, Direct solution package based on alternating diagonal ordering for the U.S. Geological Survey modular finite-difference ground-water flow model: U.S. Geological Survey Open-File Report 95-288, 46 p.
  • DE45 Package documentation, PostScript (234K)
  • DE45 Package documentation, Portable Document Format (PDF) (88K)
• Fenske, J.P., Leake, S.A., and Prudic, D.E., 1996, Documentation of a computer program (RES1) to simulate leakage from reservoirs using the modular finite-difference ground-water flow model (MODFLOW): U.S. Geological Survey Open-File Report 96-364, 51 p.
  • RES1 Package documentation, PostScript (1.2MB)
  • RES1 Package documentation, Portable Document Format (PDF) (104K)
• Leake, S.A., and Lilly, M.R., 1997, Documentation of a computer program (FHB1) for assignment of transient specified-flow and specified-head boundaries in applications of the modular finite-difference ground-water flow model (MODFLOW): U.S. Geological Survey Open-File Report 97-571, 50 p.
  • FHB1 Package documentation, PostScript (2.7MB)
  • FHB1 Package documentation, Portable Document Format (PDF) (343K)

Point of contact for MODFLOW-96: