Model:MODFLOW: Difference between revisions

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{{Model identity
|Model type=Modular
}}
{{Start models incorporated}}
{{End a table}}
{{Model identity2
|ModelDomain=Terrestrial, Hydrology
|Spatial dimensions=3D
|Spatialscale=Watershed-Scale
|One-line model description=MODFLOW is a three-dimensional finite-difference ground-water model
|Extended model description=MODFLOW is a three-dimensional finite-difference ground-water model that was first published in 1984. It has a modular structure that allows it to be easily modified to adapt the code for a particular application.  Many new capabilities have been added to the original model.  OFR 00-92 (complete reference below) documents a general update to MODFLOW, which is called MODFLOW-2000 in order to distinguish it from earlier versions.
MODFLOW-2000 simulates steady and nonsteady flow in an irregularly shaped flow system in which aquifer layers can be confined, unconfined, or a combination of confined and unconfined. Flow from external stresses, such as flow to wells, areal recharge, evapotranspiration, flow to drains, and flow through river beds, can be simulated. Hydraulic conductivities or transmissivities for any layer may differ spatially and be anisotropic (restricted to having the principal directions aligned with the grid axes), and the storage coefficient may be heterogeneous. Specified head and specified flux boundaries can be simulated as can a head dependent flux across the model's outer boundary that allows water to be supplied to a boundary block in the modeled area at a rate proportional to the current head difference between a "source" of water outside the modeled area and the boundary block.  MODFLOW is currently the most used numerical model in the U.S. Geological Survey for ground-water flow problems.
In addition to simulating ground-water flow, the scope of MODFLOW-2000 has been expanded to incorporate related capabilities such as solute transport and parameter estimation.
}}
{{Start model keyword table}}
{{Model keywords
|Model keywords=basins
}}
{{End a table}}
{{Modeler information
{{Modeler information
|First name=Paul
|First name=Paul
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|Town / City=Reston
|Town / City=Reston
|Postal code=20192
|Postal code=20192
|Country=United States
|State=Virginia
|State=Virginia
|Country=USA
|Email address=pbarlow@usgs.gov
|Email address=pbarlow@usgs.gov
}}
}}
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|Additional town / City=Reston
|Additional town / City=Reston
|Additional postal code=20192
|Additional postal code=20192
|Additional country=United States
|Additional state=Virginia
|Additional state=Virginia
|Additional country=USA
|Additional email address=harbaugh@usgs.gov
|Additional email address=harbaugh@usgs.gov
}}
}}
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|Additional town / City=Reston
|Additional town / City=Reston
|Additional postal code=20192
|Additional postal code=20192
|Additional country=United States
|Additional state=Virginia
|Additional state=Virginia
|Additional country=USA
|Additional email address=erbanta@usgs.gov
|Additional email address=erbanta@usgs.gov
}}
}}
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|Additional town / City=Reston
|Additional town / City=Reston
|Additional postal code=20192
|Additional postal code=20192
|Additional country=United States
|Additional state=Virginia
|Additional state=Virginia
|Additional country=USA
|Additional email address=mchill@usgs.gov
|Additional email address=mchill@usgs.gov
}}
}}
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|Additional town / City=Reston
|Additional town / City=Reston
|Additional postal code=20192
|Additional postal code=20192
|Additional country=United States
|Additional state=Virginia
|Additional state=Virginia
|Additional country=USA
|Additional email address=rbwinst@usgs.gov
|Additional email address=rbwinst@usgs.gov
}}
{{Model identity
|Model type=Modular
|Categories=Hydrology, Terrestrial
|Spatial dimensions=3D
|Spatialscale=Watershed-Scale
|One-line model description=MODFLOW is a three-dimensional finite-difference ground-water model
|Extended model description=MODFLOW is a three-dimensional finite-difference ground-water model that was first published in 1984. It has a modular structure that allows it to be easily modified to adapt the code for a particular application.  Many new capabilities have been added to the original model.  OFR 00-92 (complete reference below) documents a general update to MODFLOW, which is called MODFLOW-2000 in order to distinguish it from earlier versions.
MODFLOW-2000 simulates steady and nonsteady flow in an irregularly shaped flow system in which aquifer layers can be confined, unconfined, or a combination of confined and unconfined. Flow from external stresses, such as flow to wells, areal recharge, evapotranspiration, flow to drains, and flow through river beds, can be simulated. Hydraulic conductivities or transmissivities for any layer may differ spatially and be anisotropic (restricted to having the principal directions aligned with the grid axes), and the storage coefficient may be heterogeneous. Specified head and specified flux boundaries can be simulated as can a head dependent flux across the model's outer boundary that allows water to be supplied to a boundary block in the modeled area at a rate proportional to the current head difference between a "source" of water outside the modeled area and the boundary block.  MODFLOW is currently the most used numerical model in the U.S. Geological Survey for ground-water flow problems.
In addition to simulating ground-water flow, the scope of MODFLOW-2000 has been expanded to incorporate related capabilities such as solute transport and parameter estimation.
}}
}}
{{Model technical information
{{Model technical information
|Supported platforms=Unix, Linux, Mac OS, Windows
|Supported platforms=Unix, Linux, Mac OS, Windows
|Programming language=Fortran77, Fortran90, C
|Programming language=Fortran77, Fortran90, C
|Code optimized=Single Processor, Parallel
|Code optimized=Single Processor, Multiple Processors
Computing
|Start year development=1984
|Start year development=1984
|Does model development still take place?=Yes
|Does model development still take place?=Yes
|DevelopmentCode=Active
|DevelopmentCodeYearChecked=2020
|Model availability=As code
|Model availability=As code
|Source code availability=Through web repository
|Source code availability=Through web repository
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|Program license type=Other
|Program license type=Other
|Program license type other=Non-commercial MODFLOW versions are free, however, their licensing usually limit the use to non-profit educational or research purposes.
|Program license type other=Non-commercial MODFLOW versions are free, however, their licensing usually limit the use to non-profit educational or research purposes.
|OpenMI compliant=No but possible
|CCA component=No but possible
|IRF interface=No but possible
|Memory requirements=--
|Memory requirements=--
|Typical run time=--
|Typical run time=--
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|Output format=ASCII, Binary
|Output format=ASCII, Binary
|Pre-processing software needed?=No
|Pre-processing software needed?=No
|Describe pre-processing software=There are several graphical interfaces to MODFLOW, which often include the compiled MODFLOW code with modifications. These programs aid the input of data for creating MODFLOW models.
|Post-processing software needed?=No
|Post-processing software needed?=No
|Describe post-processing software=There are several graphical interfaces to MODFLOW, which often include the compiled MODFLOW code with modifications. These programs aid the input of data for creating MODFLOW models.
|Visualization software needed?=No
|Visualization software needed?=No
}}
}}
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}}
}}
{{Model testing
{{Model testing
|Describe available calibration data sets=--
|Describe available test data sets=Test data sets are provided to verify that MODFLOW-2000 is correctly installed and running on the system. The tests may also be looked at as examples of how to use the program.
|Describe available test data sets=Test data sets are provided to verify that MODFLOW-2000 is correctly installed and running on the system. The tests may also be looked at as examples of how to use the program.
|Describe ideal data for testing=--
}}
}}
{{Users groups model}}
{{Users groups model}}
{{Documentation model
{{Documentation model
|Provide key papers on model if any=See:
* McDonald M.G. and Harbaugh, A.W. (2003). "The History of MODFLOW". Ground Water 41 (2): 280–283. doi:10.1111/j.1745-6584.2003.tb02591.x
* McDonald, M.G., and Harbaugh, A.W. (December 28, 1983). A modular three-dimensional finite-difference ground-water flow model. Open-File Report 83-875. U.S. Geological Survey.
* McDonald, M.G., and Harbaugh, A.W. (1988) (PDF). A modular three-dimensional finite-difference ground-water flow model. Techniques of Water-Resources Investigations, Book 6. U.S. Geological Survey.
* Harbaugh, A.W., and McDonald, M.G. (1996a). User's documentation for MODFLOW-96, an update to the U.S. Geological Survey modular finite-difference ground-water flow model. Open-File Report 96-485. U.S. Geological Survey.
* 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. Open-File Report 00-92. U.S. Geological Survey.
* Harbaugh, Arlen W. (2005). MODFLOW-2005, The U.S. Geological Survey Modular Ground-Water Model—the Ground-Water Flow Process. Techniques and Methods 6–A16. U.S. Geological Survey.
* Wen-Hsing Chiang (2005). 3D-Groundwater Modeling with PMWIN (Second ed.). Springer. doi:10.1007/3-540-27592-4. ISBN 978-3-540-27590-9.
|Manual model available=Yes
|Manual model available=Yes
|Model website if any=http://water.usgs.gov/nrp/gwsoftware/modflow2000/MFDOC/index.html
|Model website if any=http://water.usgs.gov/nrp/gwsoftware/modflow2000/MFDOC/index.html
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Although every effort is made to provide timely and accurate information, the authors, the U.S. Geological Survey (USGS), and the U.S. Government make no warranty, expressed or implied, as to the timeliness or accuracy of the contents of this web site, which may be updated and revised at any time.  Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.  Any links to non-Government web sites are provided for convenience only and do not imply endorsement by the U.S. Government.
Although every effort is made to provide timely and accurate information, the authors, the U.S. Geological Survey (USGS), and the U.S. Government make no warranty, expressed or implied, as to the timeliness or accuracy of the contents of this web site, which may be updated and revised at any time.  Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.  Any links to non-Government web sites are provided for convenience only and do not imply endorsement by the U.S. Government.
}}
}}
{{CSDMS staff part
|OpenMI compliant=No but possible
|IRF interface=No but possible
|CMT component=No but possible
|CCA component=No but possible
}}
{{Start coupled table}}
{{End a table}}
{{End headertab}}
{{{{PAGENAME}}_autokeywords}}
<!-- PLEASE USE THE "EDIT WITH FORM" BUTTON TO EDIT ABOVE CONTENTS; CONTINUE TO EDIT BELOW THIS LINE -->
<!-- PLEASE USE THE "EDIT WITH FORM" BUTTON TO EDIT ABOVE CONTENTS; CONTINUE TO EDIT BELOW THIS LINE -->
==Introduction==
==Introduction==


== History ==
== History ==


== Papers ==
== References  ==
<br>{{AddReferenceUploadButtons}}<br><br>
{{#ifexist:Template:{{PAGENAME}}-citation-indices|{{{{PAGENAME}}-citation-indices}}|}}<br>
{{Include_featured_references_models_cargo}}<br>


== Issues ==
== Issues ==


== Help ==
== Help ==
{{#ifexist:Model_help:{{PAGENAME}}|[[Model_help:{{PAGENAME}}]]|}}


== Input Files ==
== Input Files ==


== Output Files ==
== Output Files ==
== Download ==
== Source ==

Latest revision as of 20:16, 16 September 2020



MODFLOW


Metadata

Also known as
Model type Modular
Model part of larger framework
Note on status model
Date note status model
Incorporated models or components:
Spatial dimensions 3D
Spatial extent Watershed-Scale
Model domain Terrestrial, Hydrology
One-line model description MODFLOW is a three-dimensional finite-difference ground-water model
Extended model description MODFLOW is a three-dimensional finite-difference ground-water model that was first published in 1984. It has a modular structure that allows it to be easily modified to adapt the code for a particular application. Many new capabilities have been added to the original model. OFR 00-92 (complete reference below) documents a general update to MODFLOW, which is called MODFLOW-2000 in order to distinguish it from earlier versions.

MODFLOW-2000 simulates steady and nonsteady flow in an irregularly shaped flow system in which aquifer layers can be confined, unconfined, or a combination of confined and unconfined. Flow from external stresses, such as flow to wells, areal recharge, evapotranspiration, flow to drains, and flow through river beds, can be simulated. Hydraulic conductivities or transmissivities for any layer may differ spatially and be anisotropic (restricted to having the principal directions aligned with the grid axes), and the storage coefficient may be heterogeneous. Specified head and specified flux boundaries can be simulated as can a head dependent flux across the model's outer boundary that allows water to be supplied to a boundary block in the modeled area at a rate proportional to the current head difference between a "source" of water outside the modeled area and the boundary block. MODFLOW is currently the most used numerical model in the U.S. Geological Survey for ground-water flow problems.

In addition to simulating ground-water flow, the scope of MODFLOW-2000 has been expanded to incorporate related capabilities such as solute transport and parameter estimation.

Keywords:

basins,

Name Paul Barlow
Type of contact Model developer
Institute / Organization U.S. Geological Survey
Postal address 1 431 National Center
Postal address 2
Town / City Reston
Postal code 20192
State Virginia
Country United States
Email address pbarlow@usgs.gov
Phone
Fax


Name Arlen Harbaugh
Type of contact Model developer
Institute / Organization U.S. Geological Survey
Postal address 1 431 National Center
Postal address 2
Town / City Reston
Postal code 20192
State Virginia
Country United States
Email address harbaugh@usgs.gov
Phone
Fax


Name Edward Banta
Type of contact Model developer
Institute / Organization U.S. Geological Survey
Postal address 1 431 National Center
Postal address 2
Town / City Reston
Postal code 20192
State Virginia
Country United States
Email address erbanta@usgs.gov
Phone
Fax


Name Mary Hill
Type of contact Model developer
Institute / Organization U.S. Geological Survey
Postal address 1 431 National Center
Postal address 2
Town / City Reston
Postal code 20192
State Virginia
Country United States
Email address mchill@usgs.gov
Phone
Fax


Name Richard Winston
Type of contact Model developer
Institute / Organization U.S. Geological Survey
Postal address 1 431 National Center
Postal address 2
Town / City Reston
Postal code 20192
State Virginia
Country United States
Email address rbwinst@usgs.gov
Phone
Fax


Supported platforms
Unix, Linux, Mac OS, Windows
Other platform
Programming language

Fortran77, Fortran90, C

Other program language
Code optimized Single Processor, Multiple Processors
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development 1984
Does model development still take place? Yes
If above answer is no, provide end year model development
Code development status Active
When did you indicate the 'code development status'? 2020
Model availability As code
Source code availability
(Or provide future intension) 		Through web repository
Source web address http://water.usgs.gov/nrp/gwsoftware/modflow2000/modflow2000.html
Source csdms web address
Program license type Other
Program license type other Non-commercial MODFLOW versions are free, however, their licensing usually limit the use to non-profit educational or research purposes.
Memory requirements --
Typical run time --


Describe input parameters Too many to mention here, see:

http://water.usgs.gov/nrp/gwsoftware/modflow2000/modflow2000.html

Input format
Other input format
Describe output parameters Too many to mention here, see:

http://water.usgs.gov/nrp/gwsoftware/modflow2000/modflow2000.html

Output format ASCII, Binary
Other output format
Pre-processing software needed? No
Describe pre-processing software
Post-processing software needed? No
Describe post-processing software
Visualization software needed? No
If above answer is yes
Other visualization software


Describe processes represented by the model The ground-water flow equation is solved using the finite-difference approximation. The flow region is subdivided into blocks in which the medium properties are assumed to be uniform. In plan view the blocks are made from a grid of mutually perpendicular lines that may be variably spaced. Model layers can have varying thickness. A flow equation is written for each block, called a cell. Several solvers are provided for solving the resulting matrix problem; the user can choose the best solver for the particular problem. Flow-rate and cumulative-volume balances from each type of inflow and outflow are computed for each time step.
Describe key physical parameters and equations --
Describe length scale and resolution constraints --
Describe time scale and resolution constraints --
Describe any numerical limitations and issues --


Describe available calibration data sets
Upload calibration data sets if available:
Describe available test data sets Test data sets are provided to verify that MODFLOW-2000 is correctly installed and running on the system. The tests may also be looked at as examples of how to use the program.
Upload test data sets if available:
Describe ideal data for testing


Do you have current or future plans for collaborating with other researchers?
Is there a manual available? Yes
Upload manual if available:
Model website if any http://water.usgs.gov/nrp/gwsoftware/modflow2000/MFDOC/index.html
Model forum / discussion board Please send comments and corrections to Richard B. Winston (rbwinst@usgs.gov).
Comments Disclaimer

Although every effort is made to provide timely and accurate information, the authors, the U.S. Geological Survey (USGS), and the U.S. Government make no warranty, expressed or implied, as to the timeliness or accuracy of the contents of this web site, which may be updated and revised at any time. Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government. Any links to non-Government web sites are provided for convenience only and do not imply endorsement by the U.S. Government.


This part will be filled out by CSDMS staff

OpenMI compliant No but possible
BMI compliant No but possible
WMT component No but possible
PyMT component
Is this a data component
Can be coupled with:
Model info
Authors
Paul Barlow
Harbaugh, Banta, Hill, Winston
Source code
Model citations
Nr. of publications: 2622
Total citations: 53543
h-index: 87
m-quotient: 2.12
QR-code
Qrcode MODFLOW.png
Link to this page
Other models by author




Introduction

History

References



Nr. of publications: 2622
Total citations: 53543
h-index: 87
m-quotient: 2.12



Featured publication(s)YearModel describedType of ReferenceCitations
Markstrom, Steven L.; Niswonger, Richard G.; Regan, R. Steven; Prudic, David E.; Barlow, Paul M.; 2005. GSFLOW-Coupled Ground-water and Surface-water FLOW model based on the integration of the Precipitation-Runoff Modeling System (PRMS) and the Modular Ground-Water Flow Model (MODFLOW-2005). .
(View/edit entry)		2005 GSFLOW
MODFLOW
PRMS

Model overview

356
Harbaugh, A.W.; Banta, E.R.; Hill, M.C.; 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.. Open-File Report 00-92. U.S. Geological Survey..
(View/edit entry)		2000 MODFLOW

Model overview

2437
McDonald, M.G.; Harbaugh, A.W.; 1983. A modular three-dimensional finite-difference ground-water flow model.. Open-File Report 83-875. U.S. Geological Survey., , .
(View/edit entry)		1983 MODFLOW

Model overview

3490
Harbaugh, A.W.; 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.. Open-File Report 96-485. U.S. Geological Survey..
(View/edit entry)		1996 MODFLOW

Model overview

924
See more publications of MODFLOW


Issues

Help

Input Files

Output Files

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