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MODFLOW-88

MODular three-dimensional finite-difference ground-water FLOW model--original model, first released in 1988

Information

• Summary of MODFLOW-88
• Version history
• 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-88 compiled for...

• Data General AViiON (176K)
• Silicon Graphics Indigo (155K)
• Sun SPARCstation (Solaris) (175K)
• IBM-compatible PC, 386 or higher with math coprocessor (312K)
• IBM-compatible PC, 386 or higher with math coprocessor (includes source) (405K)

MODFLOW-88 source code for compilation under...

• UNIX (118K)
• DOS (160K)

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.
• The following reports documenting MODFLOW packages are available on-line. Select the "Summary of MODFLOW-88" 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)

Point of contact for MODFLOW-88: