Water Resources Applications Software

MODFLOW-2000

MODular three-dimensional finite-difference ground-water FLOW model--2000 updated version

Information

Summary of MODFLOW-2000

Version history

MODFLOW Fact Sheet (a short description of the MODFLOW model)

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 option preceded by a binary icon retrieves a self-extracting DOS executable. A README file containing installation instructions is included with the software distribution file.

MODFLOW-2000 compiled for...

MS-DOS console, run under Microsoft Windows (include source) (13.0MB)

The above software can also be accessed via anonymous FTP from water.usgs.gov in the /pub/software/ground_water/modflow directory.

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., Banta, E.R., Hill, M.C., and McDonald, M.G., 2000, MODFLOW-2000, the U.S. Geological Survey modular ground-water model--user guide to modularization concepts and the ground-water flow process: U.S. Geological Survey Open-File Report 00-92, 121 p.
Modularization Concepts, Portable Document Format (PDF) (655K)

Hill, M.C., Banta, E.R., Harbaugh, A.W., and Anderman, E.R., 2000, MODFLOW-2000, the U.S. Geological Survey modular ground-water model -- user guide to the observation, sensitivity, and parameter-estimation processes and three post-processing programs: U.S. Geological Survey Open- File Report 00-184, 210 p.
Parameter Estimation, Portable Document Format (PDF) (578K)

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.
1996 Update, User's Documentation, Portable Document Format (PDF) (138K)
1996 Update, User's Documentation, PostScript (358K)

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.
1996 Update, Programmer's Documentation, Portable Document Format (PDF) (417K)
1996 Update, Programmer's Documentation, PostScript (873K)

The following guidelines for effective model calibration, written with specific application to UCODE and MODFLOWP, are directly applicable to MODFLOW-2000, as the parameter-estimation capabilities of MODFLOWP have been integrated into MODFLOW-2000.

Hill, M.C., 1998, Methods and guidelines for effective model calibration: U.S. Geological Survey Water-Resources Investigations Report 98-4005, 90 p. [with application to UCODE, a computer code for universal inverse modeling, and MODFLOWP, a computer code for inverse modeling with MODFLOW].
USGS WRIR 98-4005, Portable Document Format (PDF) (1.5MB)

The following reports documenting MODFLOW packages are available on-line. See the Summary of MODFLOW-2000 for 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.

Zheng, Chunmiao, Hill, M.C., and Hsieh, P.A., 2001, MODFLOW-2000, the U.S. Geological Survey modular ground-water model--User guide to the LMT6 package, the linkage with MT3DMS for multi-species mass transport modeling: U.S. Geological Survey Open-File Report 01-82, 43 p.
LMT6 Package documentation, Portable Document Format (PDF) (3.5MB)

Mehl, S.W., and Hill, M.C., 2001, MODFLOW-2000, the U.S. Geological Survey modular ground-water model -- user guide to the Link-AMG (LMG) package for solving matrix equations using an algebraic multigrid solver: U.S. Geological Survey Open-File Report 01-177, 33 p.
LMG Package documentation, Portable Document Format (PDF) (788K)

Anderman, E.R., and Hill, M.C., 2000, MODFLOW-2000, the U.S. Geological Survey modular ground-water model -- Documentation of the Hydrogeologic-Unit Flow (HUF) package: U.S. Geological Survey Open-File Report 00-342, 89 p.
HUF Package documentation, Portable Document Format (PDF) (543K)

Banta, E.R., 2000, MODFLOW-2000, the U.S. Geological Survey modular ground-water model--documentation of packages for simulating evapotranspiration with a segmented function (ETS1) and drains with return flow (DRT1): U.S. Geological Survey Open-File Report 00-466, 127 p.
ETS1 and DRT1 Packages documentation, Portable Document Format (PDF) (498K)

Merritt, M.L., and Konikow, L.F., 2000, Documentation of a computer program to simulate lake-aquifer interaction using the MODFLOW ground-water flow model and the MOC3D solute-transport model: U.S. Geological Survey Water-Resources Investigations Report 00-4167, 146 p.
Lake Package documentation, Portable Document Format (PDF) (6.1MB)

Hanson, R.T., and Leake, S.A., 1999, Documentation for HYDMOD, a program for extracting and processing time-series data from the U.S. Geological Survey's modular three-dimensional finite-difference ground-water flow model: U.S. Geological Survey Open-File Report 98-564, 57 p.
HYDMOD documentation, Portable Document Format (PDF) (662K)

Anderman, E.R. and Hill, M.C., 2001, MODFLOW-2000, the U.S. Geological Survey modular ground-water model -- documentation of the ADVective-transport observation (ADV2) package, version 2: U.S. Geological Survey Open-File Report 01-54, 69 p.
USGS OFR 01-54, Portable Document Format (PDF) (3.0MB)

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, Portable Document Format (PDF) (343K)
FHB1 Package documentation, PostScript (2.7MB)

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, Portable Document Format (PDF) (104K)
RES1 Package documentation, PostScript (1.2MB)

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, Portable Document Format (PDF) (88K)
DE45 Package documentation, PostScript (234K)

Point of contact for MODFLOW-2000:

U.S. Geological Survey

Hydrologic Analysis Software Support Program

437 National Center

Reston, VA 20192

(electronic mail: h2osoft@usgs.gov)