Aquaveo Groundwater Modeling System (GMS) 10.9.5 Win x64

Software Overview

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Groundwater Modeling System (GMS) integrates graphical modeling tools with a range of groundwater analysis codes. The environment supports model conceptualization, site characterization, mesh and grid generation, geostatistics, simulation setup, and post-processing within the same application.
GMS includes support for multiple groundwater modeling technologies and provides facilities for transferring information between models and associated datasets. Its three-dimensional environment is intended for constructing, examining, and analyzing groundwater simulations.
In the 10.9 series, the Map from Coverage command for MODFLOW 6 modeling was moved directly into the package dialog, allowing mapping operations to be performed within the dialog instead of switching between separate windows.
Key Features

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• Provides a graphical environment for three-dimensional groundwater simulations.
• Integrates the GMS graphical interface with groundwater analysis codes.
• Supports MODFLOW and MT3DMS among its groundwater modeling technologies.
• Provides tools for site characterization.
• Supports groundwater model conceptualization.
• Provides mesh and grid generation tools.
• Includes geostatistical modeling capabilities.
• Provides post-processing tools for simulation results.
• Allows information to be shared between different models and data types.
• Supports MODFLOW 6 modeling workflows.
• Provides tools for working with datasets, coverages, grids, rasters, and TIN data.
• Includes support for specialized modeling components such as RT3D, MODFLOW-USG, SEAM3D, and T-Progs.

What's New

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GMS 10.9.5 - August 05, 2026
MODFLOW6

• 16087 - Adjusted the new simulation dialog to address excessive dialog height.
• 16085 - Fixed an error when mapping well coverage with MODFLOW 6.
• 16086 - Improved warnings related to mapping wells to zero-thickness cells.
• 16089 - Improved error reporting for Map From Coverage operations involving dates and times.
• 16103 - Addressed repeated Unexpected error warnings that could prevent users from exiting a dialog.
• 16160 - Fixed the MODFLOW 6 Set Up From Flow Model function.

Dataset Creation

• 16088 - Fixed duplicate tree items created when using MF6 Budget to add scalar datasets.
• 16146 - Fixed dataset naming settings being saved when the coverage setup dialog is closed with X or Cancel.

Import

• 16078 - Added a shared feature request for a web service option to define a proxy server and, when required, its username and password.

Google Earth

• 16112 - Fixed an issue where KMZ vector files did not save the project view.

Dataset

• 16097 - Fixed incorrect CCF dataset labels caused by changing units to seconds.

TIN

• 16076 - Fixed contour problems occurring when multiple TIN vertices are moved simultaneously.

MODFLOW-USG

• 16111 - Fixed an issue where GMS could erase the head file for previous flow options in USG Transport.
• 16157 - Fixed a crash caused by editing concentration arrays for more than two species in USG Transport.
• 16158 - Fixed incorrect CONC array printing to BCT files.
• 16143 - Fixed the MODFLOW-USG SMS Sparse Matrix Solver Reset button and option-saving behavior.

Simulation

• 16064 - Addressed a GUI test warning indicating that a solution file could not be read in HGS.
• 16129 - Addressed an HGS simulation error involving failure to snap an arc to UGrid.
• 16200 - Fixed an error encountered when saving a simulation after opening the TDIS package.

RT3D

• 16134 - Fixed an issue where resetting data in the RT3D Chemical Reaction package could affect the dialog state.

3D Grid

• 16136 - Fixed an issue where the 3D Grid Isosurface Interior Edge Removal option affected the dataset legend.

Tools

• 16147 - Fixed an issue where the 3D UGrid from Rasters tool deleted proportions on the bottom row.

Executable

• 16167 - Fixed an issue where the MF2PEST executable could become stuck on OBS.
• 16186 - Addressed an issue involving the ISPCUNAQ flag preventing a model from running.

Package

• 16184 - Fixed a crash caused by the PCB package.

Rasters

• 16192 - Fixed a land-use integer raster display issue.

Coverage

• 16197 - Addressed issues when entering a transient recharge rate on the ALL line in the attribute table.

T-Progs

• 16176 - Addressed an issue where MCMOD could become stuck loading after Run TSIM was executed.

SEAM3D

• 16096 - Addressed a GUI issue where the time-step window did not appear when selecting datasets and contours differed significantly.

Display

• 16215 - Fixed an issue where display settings were not retained after saving and reopening GMS.

Why Choose Groundwater Modeling System (GMS)

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Groundwater Modeling System (GMS) is intended for groundwater professionals and other users who need a graphical environment for developing and analyzing numerical groundwater models. Its combination of model setup, spatial data handling, grid and mesh generation, simulation tools, and post-processing functions supports a broad modeling workflow.
The ability to work with multiple groundwater modeling technologies and exchange information between model types and datasets makes GMS suitable for projects that require several stages of groundwater analysis within one environment.
System Requirements

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Windows *
Home Page

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Product Information

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• Software Name: Groundwater Modeling System (GMS)
• Version: 10.9.5
• Architecture: x64
• Languages: english
• License type: Full Version
• File Size: 1.9 Gb