EFDC+ Explorer (EE) 12.3.0 is a Windows-based graphical user interface (GUI) for the Environmental Fluid Dynamics Code (EFDC+), part of the EFDC+ Explorer Modeling System (EEMS) by Dynamic Solutions International (DSI). It facilitates pre- and post-processing for environmental modeling, including hydrodynamics, water quality, and sediment transport in rivers, lakes, estuaries, and coastal regions. Grid+ 1.2 is a companion tool for generating Cartesian and orthogonal curvilinear grids, essential for setting up EFDC+ models. Together, they streamline complex environmental simulations, with applications in over 60 countries, including projects like the Newtown Creek Superfund remediation.

EFDC+ Explorer 12.3.0

EFDC+ Explorer 12.3.0 is a refined version in the EEMS 12 series, built on a modern .NET 8.0 framework for improved usability and performance. It supports the enhanced EFDC+ model, which includes multithreading, MPI-based parallel computing, and compliance with NetCDF CF Conventions 1.11 and UGRID 1.0.

Key Features:

  • Model Setup: Simplified parameter configuration via forms, supporting air-sea interactions (COARE 3.6 algorithm), 3-time-level schemes, and volatilization for dye proxies.
  • Visualization: 2D/3D views, calibration plots, statistical analysis, and exports to AVI (via FFmpeg), Tecplot, images, or videos.
  • Advanced Tools: Array Out for custom outputs, NetCDF integration, and support for multi-core/cloud computing.
  • User Interface: Features a main menu, toolbar, model report bar, and view layers. Shortcut keys (F1 for knowledge base, F2 for shortcuts) enhance navigation.
  • Recent Updates (EEMS 12 Series):
    • Bug fixes for calibration plots, 3D object positioning, and timing frame layouts.
    • Upgraded NetCDF to CF 1.11/UGRID 1.0 with proper standard names/units.
    • Added Array Out GUI, FFmpeg video export, and a demo Red River Grid model.
    • Enhanced EFDC+ code for accuracy (e.g., 3-time-level scheme, volatilization).

Grid+ 1.2

Grid+ 1.2 is a grid generation tool integrated with EEMS, designed to create structured Cartesian or orthogonal curvilinear grids for EFDC+ models. It supports complex geometries and is critical for accurate hydrodynamic simulations.

Key Features:

  • Grid Types: Generates Cartesian, curvilinear, and unstructured grids.
  • Coordinate Systems: Supports UTM projections with EPSG codes, set during model creation in EFDC+ Explorer.
  • Usability: Intuitive interface for defining grid boundaries and refining mesh for complex systems like rivers or estuaries.
  • Integration: Seamlessly pairs with EFDC+ Explorer for direct model input.

Updates in 1.2: While specific 1.2 changelogs are not detailed, recent Grid+ updates focus on improved mesh generation for complex domains and compatibility with EFDC+ Explorer 12 enhancements.

Combined Workflow

  • Grid Creation: Use Grid+ 1.2 to build a grid (e.g., Cartesian or curvilinear) with specified projections.
  • Model Setup: Import the grid into EFDC+ Explorer 12.3.0, configure parameters (e.g., water quality, sediment transport), and run simulations.
  • Analysis: Leverage Explorer’s visualization tools for 2D/3D results, calibration, and data export.