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List of USGS Reports Related to the Groundwater Flow Model MODFLOW
Updated March 12, 2010
Main MODFLOW Documentation
I. Flow Simulation
Harbaugh, A.W., 2005, MODFLOW2005, The U.S. Geological Survey modular groundwater model  the GroundWater Flow Process: U.S. Geological Survey Techniques and Methods 6A16, variously p.
Harbaugh, A.W., Banta, E.R., Hill, M.C., and McDonald, M.G., 2000, MODFLOW2000, The U.S. Geological Survey Modular GroundWater Model  User guide to modularization concepts and the groundwater flow process: U.S. Geological Survey OpenFile Report 0092, 121 p.
Harbaugh, A.W., and McDonald, M.G., 1996, User's documentation for MODFLOW96 an update to the U.S. Geological Survey modular finitedifference groundwater flow model: U.S. Geological Survey OpenFile Report 96485, 56 p.
Harbaugh, A.W., and McDonald, M.G., 1996, Programmer's documentation for MODFLOW96, an update to the U.S. Geological Survey modular finitedifference groundwater flow model: U.S. Geological Survey OpenFile Report 96486, 220 p.
Leake, S.A., and Claar, D.V., 1999,
Procedures and computer programs for telescopic mesh refinement using MODFLOW: U.S. Geological Survey OpenFile Report 99238, 53 p.
McDonald, M.G., and Harbaugh, A.W., 1988, A modular threedimensional finitedifference groundwater flow model: Techniques of WaterResources Investigations of the United States Geological Survey, Book 6, Chapter A1, 586 p.
Mehl, S.W. and Hill, M.C., 2005, MODFLOW2005, the U.S. Geological Survey modular groundwater model  documentation of shared node local grid refinement (LGR) and the Boundary Flow and Head (BFH) Package: U.S. Geological Survey Techniques and Methods 6A12, 68 p.
Mehl, S.W., and Hill, M.C., 2007, MODFLOW2005, The U.S. Geological Survey modular groundwater model  Documentation of the multiplerefinedareas capability of local grid refinement (LGR) and the boundary flow and head (BFH) package: U.S. Geological Survey Techniques and Methods 6A21, 13 p.
Pollock, D.W., 1994, User's guide for MODPATH/MODPATHPLOT, version 3: A particle tracking post processing package for MODFLOW, the U.S. Geological Survey finitedifference groundwater flow model: U.S. Geological Survey OpenFile Report 94464, 249 p.
Reilly, T.E., and Harbaugh, A.W., 1993,
Simulation of cylindrical flow to a well using the U.S. Geological Survey Modular FiniteDifference GroundWater Flow Model: Ground Water, v. 31, no. 3, p. 489494.
II. Parameter Estimation
Christensen, Steen, and Cooley, R.L., 2004, User Guide to the UNC Process and Three Utility Programs for Computation of Nonlinear Confidence and Prediction Intervals Using Modflow2000: U.S. Geological Survey Techniques and Methods 6A10, 186 p.
Hill, M.C., Banta, E.R., Harbaugh, A.W., and Anderman, E.R., 2000, MODFLOW2000, The U.S. Geological Survey Modular GroundWater Model  User guide to the observation, sensitivity, and parameterestimation processes and three postprocessing programs: U.S. Geological Survey OpenFile Report 00184, 209 p.
Hill, M.C., 1992, A computer program (MODFLOWP) for estimating parameters of a transient, threedimensional, groundwater flow model using nonlinear regression: U.S. Geological Survey OpenFile Report 91484, 358 p.
Hill, M.C., 1998, Methods and guidelines for effective model calibration: U.S. Geological Survey WaterResources Investigations Report 984005, 90 p.
Tonkin, M.J., Hill, M.C., and Doherty, J.E., 2003, Modflow2000, The U.S. Geological Survey Modular GroundWater Model  Documentation of MODPREDICT for Predictions, Prediction Sensitivity Analysis, and Enhanced Analysis of Model Fit: U.S. Geological Survey OpenFile Report 03385, 69 p.
III. Solute Transport
Guo, Weixing, and Langevin, C.D., 2002,
User's guide to SEAWAT: A computer program for simulation of threedimensional variabledensity groundwater flow: Techniques of WaterResources Investigations of the United States Geological Survey, Book 6, Chapter A7, 77 p.
Hornberger, G.Z., Konikow, L.F., and
Harte, P.T., 2002, Simulating solute transport across horizontalflow barriers using the MODFLOW GroundWater Transport Process: U.S. Geological Survey OpenFile Report 0252, 28 p.
Konikow, L.F., Goode, D.J., and
Hornberger, G.Z., 1996, A threedimensional Methodof Characteristics solutetransport model (MOC3D): U.S. Geological Survey WaterResources Investigations Report 964267, 87 p.
Konikow, L.F., and Hornberger, G.Z., 2006, Use of MultiNode Well (MNW) Package when simulating solute transport with the MODFLOW GroundWater Transport Process: U.S. Geological Survey Techniques and Methods 6A15, 34 p.
Langevin, C.D., Shoemaker, W.B., and Guo,
Weixing, 2003, MODFLOW2000, the U.S. Geological Survey Modular GroundWater Model  Documentation of the SEAWAT2000 Version with the VariableDensity Flow Process (VDF) and the Integrated MT3DMS Transport Process (IMT): U.S. Geological Survey OpenFile Report 03426, 43 p.
Langevin, C.D., Thorne, D.T., Jr., Dausman, A.M., Sukop, M.C., and Guo, Weixing, 2008, SEAWAT Version 4: A Computer Program for Simulation of MultiSpecies Solute and Heat Transport: U.S. Geological Survey Techniques and Methods Book 6, Chapter A22, 39 p.
Zheng, Chunmiao, Hill, Mary C., and Hsieh, Paul A., 2001, MODFLOW2000, The U.S. Geological Survey Modular GroundWater Model  User guide to the LMT6 Package, The linkage with MT3DMS for multispecies mass transport modeling: U.S. Geological Survey OpenFile Report 0182, 43 p.
IV. Management
Ahlfeld, D.P., Baker, K.M., and Barlow, P.M., 2009, GWM2005 — A groundwatermanagement process for MODFLOW2005 with local grid refinement (LGR) capability: U.S. Geological Survey Techniques and Methods 6A33, 65 p.
Ahlfeld, D.P., Barlow, P.M., and Mulligan, A.E., 2005, GWMA groundwater management process for the U.S. Geological Survey modular groundwater model (MODFLOW2000): U.S. Geological Survey OpenFile Report 20051072, 124 p.
Halford, Keith J., 2006, MODOPTIM: A general optimization program for groundwater flow model calibration and groundwater management with MODFLOW: U.S. Geological Survey Scientific Investigations Report 20065009, 61 p.
V. Other Processes
Markstrom, S.L., Niswonger, R.G., Regan, R.S., Prudic, D.E., and Barlow, P.M., 2008, GSFLOWCoupled Groundwater and Surfacewater FLOW model based on the integration of the PrecipitationRunoff Modeling System (PRMS) and the Modular GroundWater Flow Model (MODFLOW2005): U.S. Geological Survey Techniques and Methods 6D1, 240 p.
Schmid, Wolfgang, and Hanson R.T., 2009, The Farm Process Version 2 (FMP2) for MODFLOW2005  Modifications and Upgrades to FMP1: U.S. Geological Survey Techniques in Water Resources Investigations, Book 6, Chapter A32, 102p.
Schmid, Wolfgang, Hanson, R.T., Maddock, Thomas, III, Leake, S.A., 2006, User guide for the farm process (FMP1) for the U.S. Geological Survey's modular threedimensional finitedifference groundwater flow model, MODFLOW2000: U.S. Geological Survey Techniques and Methods 6A17, 127 p.
Shoemaker, W.B., Kuniansky, E.L., Birk, Steffen, Bauer, Sebastian, and Swain, E.D., 2008, Documentation of a Conduit Flow Process (CFP) for MODFLOW2005: U.S. Geological Survey Techniques and Methods 6A24, 50 p.
Thoms, R.B., Johnson, R.L., and Healy, R.W., 2006, User's guide to the Variably Saturated Flow (VSF) Process for MODFLOW: U.S. Geological Survey Techniques and Methods 6A18, 58 p.
Package Documentations
Anderman, E.R., and Hill, M.C., 2000, MODFLOW2000, The U.S. Geological Survey Modular GroundWater Model  Documentation of the HydrogeologicUnit Flow (HUF) Package: U.S. Geological Survey OpenFile Report 00342, 89 p.
Anderman, E.R., and Hill, M.C., 2001,
MODFLOW2000, The U.S. Geological Survey Modular GroundWater Model  Documentation of the Advectivetransport observation (ADV2) Package, Version 2: U.S. Geological Survey OpenFile Report 0154, 69 p.
Anderman, E.R., Kipp, K.L., Hill, M.C., Valstar, Johan, and Neupauer, R.M., 2002, MODFLOW2000, the U.S. Geological Survey modular groundwater model  Documentation of the ModelLayer VariableDirection Horizontal Anisotropy (LVDA) capability of the HydrogeologicUnit Flow (HUF) Package: U.S. Geological Survey OpenFile Report 02409, 60 p.
Anderman, E.R., and Hill, M.C., 2003, MODFLOW2000, the U.S. Geological Survey modular groundwater model  Three additions to the HydrogeologicUnit Flow (HUF) Package: Alternative storage for the uppermost active cells, Flows in hydrogeologic units, and the Hydrauliccoductivity depthdependence (KDEP) capability: U.S. Geological Survey OpenFile Report 03347, 36 p.
Banta, E.R., 2000, MODFLOW2000, the U.S. Geological Survey modular groundwater model  Documentation of packages for simulating evapotranspiration with a segmented function (ETS1) and drains with return flow (DRT1): U.S. Geological Survey OpenFile Report 00466, 127 p.
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 finitedifference groundwater flow model (MODFLOW): U.S. Geological Survey OpenFile Report 96364, 51 p.
Goode, D.J., and Appel, C.A., 1992, Finitedifference interblock transmissivity for unconfined aquifers and for aquifers having smoothly varying transmissivity: U.S. Geological Survey WaterResources Investigations Report 924124, 79 p.
Halford, K.J., and Hanson, R.T., 2002,
User guide for the DrawdownLimited, MultiNode Well (MNW) Package for the U.S. Geological Survey's Modular ThreeDimensional FiniteDifference GroundWater Flow Model, Versions MODFLOW96 and MODFLOW2000: U.S. Geological Survey OpenFile Report 02293, 33 p.
Hanson, R.T., and Leake, S.A, 1999, Documentation for HYDMOD, a program for extracting and processing timeseriesdata from the U.S. Geological Survey's modular threedimensional finitedifference groundwater flow model: U.S. Geological Survey OpenFile Report 98564, 57 p.
Harbaugh, A.W.,
1992, A generalized finitedifference formulation for the U.S. Geological Survey modular threedimensional finitedifference groundwater flow model: U.S. Geological Survey OpenFile Report 91494, 60 p.
Harbaugh, A.W., 1995, Direct solution package based on alternating diagonal ordering for the U.S. Geological Survey modular finitedifference groundwater flow model: U.S. Geological Survey OpenFile Report 95288, 46 p.
Hill, M.C., 1990, Preconditioned ConjugateGradient 2 (PCG2)A computer
program for solving groundwater flow equations: U.S. Geological Survey
WaterResources Investigations Report 904048, 43 p.
Hoffmann, Jörn, Leake, S.A., Galloway, D.L., and Wilson, A.M., 2003, MODFLOW2000 GroundWater Model  User guide to the subsidence and aquifersystem compaction (SUB) package: U.S. Geological Survey OpenFile Report 03233, 44 p.
Hsieh, P. A., and
Freckleton, J. R., 1993, Documentation of a computer program to simulate horizontalflow barriers using the U.S. Geological Survey modular threedimensional finitedifference groundwater flow model: U.S. Geological Survey OpenFile Report 92477, 32 p.
Jobson, H.E., and Harbaugh, A.W., 1999, Modifications to the diffusion analogy surfacewater flow model (DAFLOW) for coupling to the modular finitedifference groundwater flow model (MODFLOW): U.S. Geological Survey OpenFile Report 99217, 107 p.
Konikow, L.F., Hornberger, G.Z., Halford, K.J., and Hanson, R.T., 2009, Revised multinode well (MNW2) package for MODFLOW groundwater flow model: U.S. Geological Survey Techniques and Methods 6–A30, 67 p.
Kontis, Angelo L., 2001, Computer program for simulation of variable recharge with the U.S. Geological Survey Modular FiniteDifference GroundWater Flow Model (MODFLOW): U.S. Geological Survey OpenFile Report 00173, 75 p.
Leake, S.A., Leahy, P., and Navoy, A.S., 1994, Documentation of a computer program to simulate transient leakage from confining units using the modular finitedifference groundwater flow model: U.S. Geological Survey OpenFile Report 9459, 70 p.
Leake, S.A., and Galloway, D.L., 2007, MODFLOW groundwater model  User guide to the Subsidence and AquiferSystem Compaction Package (SUBWT) for WaterTable Aquifers: U.S. Geological Survey Techniques and Methods, Book 6, Chap. A23, 42 p.
Leake, S.A., and Lilly, M.R., 1997, Documentation of a computer program (FHB1) for assignment of transient specifiedflow and specifiedhead boundaries in applications of the Modular FiniteDifference GroundWater Flow Model (MODFLOW): U.S. Geological Survey OpenFile Report 97571, 50 p.
McDonald, M.G., Harbaugh, A.W., Orr, B.R., and Ackerman, D.J., 1992, A method of converting noflow cells to variablehead cells for the U.S. Geological Survey modular finitedifference groundwater flow model: U.S. Geological Survey OpenFile Report 91536, 99 p.
Mehl, Steffen W., and Hill, Mary C.,
2001, MODFLOW2000, The U.S. Geological Survey GroundWater Model  User Guide to the LinkAMG (LMG) Package for solving matrix equations using an algebraic multigrid solver: U.S. Geological Survey OpenFile Report 01177, 33 p.
Merritt, M.L., and Konikow, L.F., 2000, Documentation of a computer program to simulate lakeaquifer interaction using the MODFLOW groundwater flow model and the MOC3D solutetransport model: U.S. Geological Survey WaterResources Investigations Report 004167, 146 p.
Naff, R.L., and Banta, E.R., 2008, The U.S. Geological Survey modular groundwater model — PCGN: A preconditioned conjugate gradient solver with improved nonlinear control: U.S. Geological Survey OpenFile Report 2008–1331, 35 p.
Niswonger, R.G. and Prudic, D.E., 2005, Documentation of the StreamflowRouting (SFR2) Package to include unsaturated flow beneath streamsA modification to SFR1: U.S. Geological Survey Techniques and Methods, Book 6, Chap. A13, 47 p.
Niswonger, R.G., Prudic, D.E., and Regan, R.S., 2006, Documentation of the
UnsaturatedZone Flow (UZF1) Package for modeling unsaturated flow between the land
surface and the water table with MODFLOW2005: U.S. Geological Survey Techniques
and Methods 6A19, 62 p.
Prudic, D.E.,
1989, Documentation of a computer program to simulate streamaquifer relations
using a modular, finitedifference, groundwater flow model: U.S. Geological
Survey OpenFile Report 88729, 113 p.
Prudic, D.E., Konikow, L.F., Banta, E.R.,
2004, A new streamflowrouting (SFR1) package to simulate streamaquifer
interaction with MODFLOW2000: U.S. Geological
Survey OpenFile Report 20041042, 95 p.
Wilson, John D., and Naff, Richard L., 2004,
The U.S. Geological Survey Modular GroundWater Model 
GMG linear equation solver package documentation: U.S. Geological
Survey OpenFile Report 20041261, 47 p.
Pre and PostProcessor Documentations
Banta, E.R., Paschke, S.S., and Litke, D.W., 2008, User guide and documentation for five MODFLOW groundwater modeling utility programs: U.S. Geological Survey Techniques and Methods 6–A28, 24 p.
Banta, E.R., and Provost, A.M., 2008, User guide for HUFPrint, a tabulation and visualization utility for the HydrogeologicUnit Flow (HUF) Package of MODFLOW: U.S. Geological Survey Techniques and Methods 6A27, 13 p.
Harbaugh, A.W.,
1990, A computer program for calculating subregional water budgets using results
from the U.S. Geological Survey modular threedimensional finitedifference
groundwater flow model: U.S. Geological Survey OpenFile Report 90392, 46 p.
Harbaugh, A.W., 2002, A datainput
program (MFI2K) for the U.S. Geological Survey Modular GroundWater Model
(MODFLOW2000): U.S. Geological Survey OpenFile Report 02 41, 55 p.
Harbaugh, A.W., 2007, MF2KtoMF05UC, a program to convert MODFLOW2000 files
to MODFLOW2005 and UCODE_2005 files: U.S. Geological Survey OpenFile
Report 20071204.
Harte, P.T., 2005, A Computer Program (ZONECONC) for Tabulating Concentration
Statistics Using Results from the U.S. Geological Survey Modular ThreeDimensional
GroundWater Flow and Transport Model: U.S. Geological Survey
OpenFile report 20051422, 21 p.
Hornberger, G.Z., and Konikow, L.F.,
1998, Addition of MOC3D solutetransport model capability to the U.S. Geological Survey MODFLOW96 graphicaluser interface using Argus Open Numerical Environments: U.S. Geological Survey OpenFile Report 98188, 30 p.
Hsieh, Paul A., and Winston, R.B., 2002,
User's guide to model viewer, a program for threedimensional visualization of groundwater model results: U.S. Geological Survey OpenFile Report 02106, 18 p.
Orzol, Leonard L., 1997, User's guide for
MODTOOLS: Computer programs for translating data of MODFLOW and MODPATH into
geographic information system files: U.S. Geological Survey OpenFile Report
97240, 86 p.
Orzol, L.L., and McGrath,
T.S., 1992, Modifications of the U.S. Geological Survey modular,
finitedifference, groundwater flow model to read and write geographical
information system files: U.S. Geological Survey OpenFile Report 9250, 202 p.
Planert, Michael, 1997, Documentation of
a computer program to estimate the head in a well of finite radius using the
U.S. Geological Survey modular finite difference groundwater flow model: U.S.
Geological Survey OpenFile Report 96651A, 11 p.
Winston, Richard B., 2000, GraphicalUser
Interface for MODFLOW, Version 4: U.S. Geological Survey OpenFile Report
00315, 34 p.
Winston, R.B., 2009, ModelMuse  A graphical user interface for MODFLOW2005 and PHAST: U.S. Geological Survey Techniques and Methods 6A29, 52 p.
Zinn, B.A. and Konikow, L.F., 2005, MODFLOW Data Extractor Program:
U.S. Geological Survey OpenFile Report 20051143, 7 p.
Other
Joss, C.J., and Baehr, A.L., 1995, Documentation of AIR3D, an adaptation of the groundwater flow code MODFLOW to simulate threedimensional air flow in the unsaturated zone: U.S. Geological Survey OpenFile Report 94533, 154 p.
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