Visual MODFLOW® Flex is the industry standard software for 3D groundwater flow, heat and contaminant transport modeling. Integrated Conceptual and Numerical Groundwater Modeling Powerful 2D and 3D Visualization Capabilities Intuitive and Easy-to-Use A Complete Groundwater Modeling System With Visual MODFLOW Flex you have a complete set of tools necessary for addressing water quality, groundwater supply, and source water protection initiatives, including: MODFLOW-2000, 2005, NWT - The world standard for groundwater flow modeling MODFLOW-USG - A finite volume version of MODFLOW that uses unstructured grids. Learn more MODFLOW-LGR - Shared-node local grid refinement (LGR) for regional-local scale simulations SEAWAT v.4 - 3D variable density groundwater flow coupled with multi-species solute and heat transport MT3DMS - The standard package for multi-species contaminant transport simulations MODPATH - The standard package for forward and reverse particle tracking Zone Budget - A package for sub-regional water budget calculations PHT3D - A multi-component transport model for three-dimensional reactive transport in saturated porous media. It couples the two existing and widely used computer programs, the solute transport model MT3DMS and the USGS geochemical code PHREEQC-2. PEST v.12.3 - Automated calibration and sensitivity analysis with support for pilot points. View all supported flow engines, transport engines and MODFLOW packages. Efficiently Manage Multiple Models Most modeling projects involve several scenarios/versions, e.g., steady-state vs transient, different properties, inputs, grid types, etc. Visual MODFLOW Flex allows you to assess uncertainty and improve model credibility through comparisons and analysis of multiple modeling scenarios - all within a single project. Manage multiple model scenarios in a single project Easily generate multiple models in parallel for evaluating alternative hydrogeologic interpretations and hypotheses Make direct visual and numerical comparisons between different modeling scenarios Calculate head differences between multiple model runs, with the same or different grid size Compare and analyze multiple modeling scenarios for selecting the best, most realistic model Powerful Data Visualization Built and designed on the latest in 3D visualization technology, Visual MODFLOW Flex allows you to effectively present and communicate your data to colleagues and stakeholders with impressive visual renderings of your hydrogeologic model. Visualize all data, including conceptual objects, numerical grids, input data (property zones, boundary condition cells, etc) and output data (calculated heads, pathlines) in state-of-the-art 2D, 3D and multi-view (FlexViewer) displays Create cut-away and cross-sectional views that allow you to see inside your model Generate 3D animations and movies for reports or the web Add isolines, contours, pathlines and color shading to viewers Drape raster images (site maps, satellite imagery) over 3D surfaces to show relief Optimized OpenGL graphics for enhanced hardware rendering Full GIS Integration Easily construct your grid-independent hydrogeologic conceptual model in minutes using your existing GIS data sets. Quick and easy data importing of all common file types and formats Automatic coordinate system and units conversion on import Automatic data validation and intelligent error checking on import Define model boundaries, property zones, boundary conditions and attributes from imported GIS data Supported Data Types Point, polygon and polyline data (.SHP, .XLS,.DXF, .TXT) 3D Surfaces (.DEM, .ASC, .GRD) Site maps, aerial and satellite imagery (.JPG, . BMP, .TIF, .GIF) Borehole data, time schedules and cross-sections from Hydro GeoAnalyst MODFLOW files from Groundwater Vistas, GMS, ModelMuse and PMWIN. Native MODFLOW files Existing Visual MODFLOW Projects (.VMF) 3D Gridded Data Flexible Grid Options Visual MODFLOW Flex provides various grid types from which you can generate your numerical model. Easily experiment with different grid types and choose the one that gives you the best, most stable model. Choose from various finite difference grid/mesh types to accommodate a wide range of applications and geologic conditions (e.g., pinch outs, discontinuities) Easily generate multiple grids within the same project and compare side-by-side in 2D or 3D Perform grid refinement around areas of interest Create faster more stable models with nested child grids that contain local horizontal and vertical refinement (MODFLOW-LGR)