# Visual MODFLOW

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{{Infobox software
| title                  = 
| name                   = Visual MODFLOW
| logo                   = File:VMF icon.png
| logo size              = 
| logo alt               = 
| logo caption           = 
| screenshot             = <!-- Image name is enough -->
| screenshot size        = 
| screenshot alt         = 
| caption                = 
| collapsible            = 
| author                 = 
| developer              = [Waterloo Hydrogeologic](/source/Waterloo_Hydrogeologic)
| released               = {{Start date and age|1994|08}}
| discontinued           = 
| latest release version = 4.0
| latest release date    = {{Start date and age|2016|12}}
| latest preview version = 
| latest preview date    = {{Start date and age|2015|06|25}}
| status                 = 
| programming language   =C# .NET 
| operating system       = [Microsoft Windows](/source/Microsoft_Windows)
| platform               = 
| size                   = 
| language               =English, Chinese 
| language count         = <!-- Number only -->
| language footnote      = 
| genre                  = [Hydrogeology](/source/Hydrogeology) software
| license                = [Proprietary](/source/Proprietary_software)
| alexa                  = 
| website                = {{Official URL}}
| standard               = 
| AsOf                   = 
}}
'''Visual MODFLOW''' (VMOD) is a [graphical interface](/source/Graphical_user_interface) (GUI) for the open source [groundwater modeling](/source/groundwater_modeling) engine [MODFLOW](/source/MODFLOW). VMOD was developed by [Waterloo Hydrogeologic](/source/Waterloo_Hydrogeologic) and first released in 1994, the first commercially available GUI for MODFLOW. In May 2012 a [.NET](/source/.NET) version of the software was rebranded as '''Visual MODFLOW Flex'''. The program includes proprietary extensions, such as MODFLOW-SURFACT, MT3DMS (mass-transport 3D multi-species) and a three-dimensional model explorer. Visual MODFLOW supports MODFLOW-2000, MODFLOW-2005, MODFLOW-NWT, MODFLOW-LGR,  MODFLOW-SURFACT, and SEAWAT.

The software is used primarily by [hydrogeologist](/source/hydrogeologist)s to simulate [groundwater](/source/groundwater) flow and contaminant transport.

==History==
The original version of Visual MODFLOW, developed for [MS-DOS](/source/MS-DOS) by Nilson Guiguer, Thomas Franz and Bob Cleary, was released in August 1994. It was based on the [USGS](/source/United_States_Geological_Survey) [MODFLOW](/source/MODFLOW)-88 and MODPATH code, and resembled the FLOWPATH program  developed by Waterloo Hydrogeologic Inc.{{Clarify|date=August 2021|reason=resembled in what way?}} The first [Windows](/source/Microsoft_Windows) based version was released in 1997.<ref>{{Cite web|url=http://www.flowpath.com/|title=Waterloo Hydrogeologic, Inc. - Frame Setup|date=1997-07-07|access-date=2016-11-03|url-status=bot: unknown|archiveurl=https://web.archive.org/web/19970707171439/http://www.flowpath.com/|archivedate=1997-07-07}}</ref> The main programmers were Sergei Schmakov, Alexander Liftshits, and Sean Wilson. A .NET version that included non-grid-based, graphical conceptual modelling features was released in 2012.

On January 10, 2005, Waterloo Hydrogeologic was acquired by [Schlumberger](/source/Schlumberger)'s Water Services Technology Group.<ref>{{cite web |url=http://www.flowpath.com/whi-slb-press-release.htm |title=Waterloo Hydrogeologic Inc, - Schlumberger Press Release |website=www.flowpath.com |access-date=12 January 2022 |archive-url=https://web.archive.org/web/20070929132042/http://www.flowpath.com/whi-slb-press-release.htm |archive-date=29 September 2007 |url-status=dead}}</ref>

On May 1, 2012, Waterloo Hydrogeologic released Visual MODFLOW Flex.<ref>{{Cite web |last= |date=May 8, 2012 |title=Schlumberger Water Services launches Visual MODFLOW Flex |url=https://www.groundwatercanada.com/schlumberger-water-services-launches-visual-modflow-flex-1751/ |access-date=April 28, 2024 |website= |publisher=}}</ref>

On March 13, 2015, Waterloo Hydrogeologic was acquired by Nova Metrix.<ref>{{Cite web |date=March 13, 2015 |title=Nova Metrix LLC Acquires Schlumberger Water Services Technology Group |url=https://www.novavg.com/nova-metrix-llc-acquires-schlumberger-water-services-technology-group/ |access-date=April 24, 2024}}</ref>

==References==
{{reflist}}

==External links==
* {{Official website|https://www.novavg.com/|name=Nova Ventures}}
* [https://www.waterloohydrogeologic.com/ Waterloo Hydrogeologic, Inc]

Category:Scientific simulation software
Category:Hydrogeology software

{{hydrology-stub}}

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Adapted from the Wikipedia article [Visual MODFLOW](https://en.wikipedia.org/wiki/Visual_MODFLOW) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Visual_MODFLOW?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.