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New in Groundwater Vistas Version 5

• New Model Versions: GV5 will support PEST Version 11, MT3DMS Version 5, MODFLOW-SURFACT Version 3, MODFLOW2000V1.17, and MODFLOW2005.
• Pest Version 11 comes with GV5
• GV5 now supports two types of regularization
• GV5 now checks for all of the common errors encountered in SVD calibration runs
• GV5 supports an analytic element model called SPLIT
• GV5 has newly rewritten charting cabailities
• ESI's new Remote Launch technology allows many simulations to be run when running Automated Sensitivity Analysis and Monte Carlo simulations (with Remote Launch purchase)
• GV5 supports the new MODFLOW2005 runoff/recharge package that includes the effects for flow through the unsaturated zone

Other New Features in Groundwater Vistas version 5.0 include:

• Better model reports
• Automatic run time logs
• Custom contour levels
• Easier boundary condition editing
• Custom output control
• Changing boundary types
• and Much, Much More!!!

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Major Features in Groundwater Vistas

• Supports MODFLOW, MT3D, MODPATH, PATH3D, MODFLOWT, and MODFLOW-SURFACT
• GV comes with MODFLOW, MT3D, and MODPATH!
• Displays both plan and cross-sectional views
• Runs all supported models from within GV
• Supports PEST and UCODE model-independent calibration software
• Automated parameter sensitivity analysis
• Imports existing MODFLOW, ModelCad and FLOWPATH files
• Imports data from SURFER and ASCII files
• Export results to SURFER, Slicer, DXF, BMP, WMF, EarthVision, EVS, Tecplot, and ASCII files
• Overlay maps in DXF and SURFER BLN formats
• Full on-line context-sensitive Help
• WYSIWYG printing with print preview
• For Windows Versions 95, 98, and NT

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Types of Graphical Displays in Groundwater Vistas

• Head, Drawdown, Concentration, Flux contours
• Head, Drawdown, Concentration, Flux color floods
• Velocity Vectors
• Pathline and travel times from MODPATH/PATH3D
• Local Mass Balance Bar Charts
• Plot head, drawdown, concentration versus time
• Parameter Sensitivity Plots
• Head, Drawdown, Concentration, Flux Profiles along a cross-section
• Calibration target scatter plots
• Post calibration errors (residuals) on maps
• Calibration target hydrographs
• Calibration statistics for head, drawdown, flux
• Properties distributions
• Annotate plots with legends, titles and scale bars
• Contours for user defined hydrostratigraphic units
• Support for import and export of Arc View Shape files

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MODFLOWwin32

MODFLOWwin32 is a advanced pre and postprocessing version of this popular groundwater flow model, originally developed by the USGS. MODFLOW is a 3D finite-difference groundwater flow model, and there are many versions available. Unlike other versions of MODFLOW, however, MODFLOWwin32 was developed specifically for Microsoft Windows (Win32s) and Windows NT. Using a unique technology, MODFLOWwin32 runs as a DLL which is controlled by a shell program or by ContourWin32 which is provided with MODFLOWwin32.

• Runs 10 to 20 percent faster than other versions of MODFLOW for DOS!
• Contains the BCF2, BCF3, PCG2, STREAM Routing, and Aquifer Compaction Packages
• User interface organizes file names and allows user to abort the simulation or force convergence when the solution oscillates
• Uses all memory available to Windows, including virtual memory
• Reads files created by all popular MODFLOW preprocessors
• All MODFLOW manuals have been reformatted as Windows Help files
• Provides several user-selectable levels of multi-tasking, even under Windows V3.1
• Iteration data displayed as MODFLOWwin32 runs.

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Advanced Groundwater Vistas

Stochastic MODFLOW and Groundwater Vistas is the first modeling environment for the MODFLOW family of models that allows for the quantification of uncertainty. Stochastic MODFLOW includes

• Monte Carlo versions of MODFLOW, MODPATH and MT3D
• New stochastic processing features in Groundwater Vistas
• Groundwater Vistas User's Guide and Documentation
• Tutorial for beginners
• Geostatistical Simulators

The approach used by Stochastic MODFLOW is the Monte Carlo technique, a common method employed by groundwater professionals for assessing risk. In the past, however, these risk assessments have relied primarily on simple analytical solutions and calculations. Here for the first time is a practical tool for assessing risk using more complex and real-world groundwater models. We are excited about these new Monte Carlo models and hope that Stochastic MODFLOW will bring groundwater modeling to a new level.

• Contour and/or color flood of mean head, drawdown, or concentration
• Contour and/or color flood of standard deviation for head, drawdown, or concentration
• Contour and/or color flood of geostatistical simulations
• Contour and/or color flood of any particular realization
• Scatter plot of calibration statistics versus realization number
• CDF, PDF, and CCDF plots for head, drawdown, or concentration at targets and observation wells
• Breakthrough curves with confidence limits
• Probability of Capture may be contoured and color flooded

• Groundwater Vistas performs all preprocessing and postprocessing
• Monte Carlo models may be launched directly from Groundwater Vistas
• Virtually any aquifer property or boundary condition can be sampled using normal, lognormal, uniform, log-uniform, or triangular distributions
• Hydraulic conductivity and leakance can use geostatistical simulation results
• Monte Carlo simulations may be conditioned to remove unrealistic results
• Compute mean and standard deviation for head, drawdown, and concentration
• Extract or delete individual realizations
• Condition based upon any combination of calibration statistical measures
• Summary report of parameter values sampled in each realization

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Why Groundwater Vistas?

The other major groundwater modeling products were ported from Unix or DOS. Groundwater Vistas was designed for Windows 95, 98, 2000, and XP exclusively. Groundwater Vistas offers cut/copy/paste, WYSIWYG printing, and a multi-document interface.

Telescopic Mesh Refinement (TMR) is the process of creating a local scale Refined model from a large scale model. Both steady state and transient TMR models can be created in Groundwater Vistas. No other modeling interface has this capability!

Groundwater Vistas already supports not just one but a variety of inverse (auto-calibration) models including PEST, UCODE, and a new inverse model built right into the Groundwater Vistas interface. You may calibrate on any combination of aquifer parameters including hydraulic conductivity, vertical conductance, boundary head, well flow rate, recharge, and evapotranspiration. No other modeling interface has this capability!

Groundwater Vistas supports all versions of MODFLOW, MT3D, and MODPATH, including MODFLOW'96, MODFLOWT, MODFLOW-SURFACT, MT3D'96, MT3DMS, and RT3D. No other modeling interface has this capability!

Groundwater Vistas supports the use of the RT3D model, a multi-species reactive transport code based on MT3D. RT3D is designed to simulate natural attenuation processes, accelerated bioremediation schemes, and dissolution of NAPLs.

You may upgrade the standard Groundwater Vistas to Stochastic Groundwater Vistas and get special Monte Carlo versions of MODFLOW, MODPATH, and MT3D. No other modeling interface has this capability!

Groundwater Vistas exports data to a variety of formats for viewing model results using the latest 3D products, including Slicer, Earth Vision, EVS, Environmental Workbench, Tecplot, and others. No other modeling interface supports this many formats!

Groundwater Vistas now includes the option of defining hydrostratigraphic units, which are defined by grouping aquifer units together. Several zones, spanning several layers can be grouped together, for performing group sensitivity analyses and calibration. This new feature saves you time!

This important new feature allows you to display a combination of any selected model parameters (conductivity, recharge, layer elevation, etc.) or computed value (head, concentration, velocity, etc.) This enables you to show input/output relationships.

You may import just about any type of data into Groundwater Vistas and export it back out again. File types include SURFER grid files, DXF files, ASCII text files, matrix files, MODFLOW files, etc. You may also use cut/copy/paste to and from any spreadsheet in Groundwater Vistas.

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Groundwater Vistas System Requirements

• Minimum of 128 MB of RAM, but recommend at least 256 MB RAM
• 120 MB of hard-disk space

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