Order No: TPS 56 GW Vistas Standard Price: $1200

Order No: TPS 56 A GW Vistas Advanced Price: $1800

Groundwater Vistas (GV) is a unique groundwater modeling environment for Microsoft Windows that couples a powerful model design system with comprehensive graphical analysis tools. GV, developed by the author of ModelCadTM, is a model-independent graphical design system for MODFLOW and related models. In addition, GV supports the use of the PEST model-independent calibration software. The combination of PEST (a trial version is included with GV) and GV's automatic sensitivity analysis make GV a powerful calibration tool.

New Model Versions, GV5 will support Pest Version 11, MT3DMS Version 5, MODFLOWSURFACT Version 3, MODFLOW2000 V1.17, and the newest version of MODFLOW from the USGS called MODFLOW2005. Pest Version 11 comes with GV5. The pilot point calibration techniques in PEST are revolutionizing groundwater model calibration. GV5 will add many new ways of adding, editing, and optimizing pilot points. We have also made the use of Singular Value Decomposition (SVD) much easier to implement. GV5 supports two types of regularization. The original method from GV4 was preferred homogeneity (ˇ°smoothnessˇ±) regularization. Preferred value regularization has been added to Version 5. In many cases preferred value regularization is more robust than preferred homogeneity.

GV displays the model design in both plan and cross-sectional views using a split window (both views are visible at the same time). Model results are presented using contours, shaded contours, velocity vectors, and detailed analysis of mass balance. MODPATH particle traces are also displayed in both plan and cross-sectional views. Another unique aspect of GV is its use of grid independent boundary conditions. Grid-independent boundaries do not change position as the grid is modified. This allows the modeler to make major changes to the mesh without wasting time repairing the location of boundaries.

The Standard Version includes:

• Groundwater Vistas User's Guide and Documentation
• Tutorial for beginners

The following list summarizes more of GV s unique capabilities:

• Supports MODFLOW2000, MT3D'99, MODPATH, PATH3D, MODFLOWT, and MODFLOW-SURFACT
• GV comes with MODFLOW, MT3D, and MODPATH!
• Displays both plan & cross-sectional views
• Run all supported models from within GV
• Supports PEST & UCODE model-independent calibration software\
• Automated parameter sensitivity analysis
• Imports-exports data from ArcView
• Imports existing MODFLOW, ModelCad & Flowpath files
• Imports data from SURFER & ASCII files
• Export results to SURFER, Slicer, DXF, BMP, WMF, EarthVision, EVS, Tecplot, & ASCII files
• Overlay maps in DXF & SURFER BLN formats
• Full on-line context-sensitive help
• WYSIWYG printing with print preview
• For Windows Versions 95, 98, NT, 2000, ME and XP
• Displays image files (.jpg, .tif, .bmp etc.)
  

Types of Graphical Displays:

• 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;
• 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
  

The advanced version of Groundwater Vistas provides the ideal groundwater risk assessment tool.

The Advanced Version includes:

• Monte Carlo versions of MODFLOW, MODPATH & MT3D
• New stochastic processing features in Groundwater Vistas
• Groundwater Vistas User's Guide and Documentation
• GV3 supports SWIFT (large discount on SWIFT if bundled with GV3)
• 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 modelling to a new level.

Models supported by Groundwater Vistas are: MODFLOW88, MODFLOW96 Double Precision, MODFLOW 2000, MT3DMS, SEAWAT, RT3D, MODPATH, Brute Force, MODOFC, SOMOS, MGO, PEST-ASP, and UCODE.

SYSTEM REQUIREMENTS

• Intel 80486 based computer with math coprocessor
• 128 MB RAM, 256 MB RAM recommended
• Hard drive with 120 MB free disk space for programs and example data sets
• DOS 5.0 or higher and MS Windows 3.1, Windows for Workgroups 3.11, Windows 95 or Windows NT
• VGA graphics or better.

Developer: Environmental Simulations, Inc., Reinholds, Pennsylvania.