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EFDC_Explorer (FULL Version)

No other EFDC tool offers as many capabilities and has been so positively received by US Federal, State and International users as EFDC_Explorer. The EE FULL Version has all the capabilities of the EE WEB Version but includes the following extra features:Water Quality (HEM3D), and the Sediment Transport and Toxics interface. Moreover, as an optional extra, EE FULL users can utilize the new multi-threading (OpenMP) functionality, which allows considerably faster run times on multi-core processors.

A list of recent updates provides details on the most recent enhancements and upgrades to the EFDC_DSI/EFDC_Explorer Modeling system. For more information concerning EFDC_Explorer please contact:

EFDC_Explorer (FULL Version) Supported Features

Features exclusive to EFDC_Explorer (FULL Version) include:

Features common to EFDC_Explorer (FULL Version) and the WEB version consist of:

Sediments

  • Cohesive and/or Non-Cohesive
  • Water column and/or Bedload fluxes
  • Bed morphology
  • Construction of simple to complex sediment bed models
  • SedFlume erosion/bed consolidation

Toxics

  • Particle based
  • Organic carbon partitioning; 1,2 or 3 phase

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Water Quality

  • Full Eutrophication sub-model with 18 parameters and 3 algal classes
  • Full sediment diagenesis
  • Submerged aquatic vegetation analysis
  • Light Penetration Analysis

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Wind Wave Generation

  • Internally generate windwave bed shears
  • Wave effects for boundary layer and/or currents

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    EFDC_Explorer (FULL Version) Capabilities

    The following lists provide a summary of the major features of EFDC_Explorer (FULL Version). The lists are grouped into three primary categories based on the general use of each feature. The first group contains general purpose features while the other two groups summarize the major pre- and post-processing features.

    It is recognized that many more options and features could be added to EFDC_Explorer. It is anticipated that many new features will be added as resources are available.

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    Multithreading (OpenMP) Capability (optional)

    • Remarkably faster run times, proportional to the number of processors being used.
    • Number of cores used fully configurable by the user.
    • Click for more details.

    General

    • Graphical interface to most of the commonly used EFDC features.
    • Graphical interface for EFDC (Sigma & GVC versions) sub-models
      • Hydrodynamics
      • Density dependent flow state variables: Salinity/Temperature
      • Tracer
      • Sediment Transport
      • Toxics
      • Water Quality with Sediment Diagenesis
      • Lagrangian Particle Transport (LPT)
    • Extensive visualization and point and click inquiries of input and output data.
    • Extensive use of popup tips to help the user select the proper inputs
    • Extensive error and range checking for user inputs.
    • Many functions work with Calendar date and/or Julian dates
    • Binary file access method to allow the access to files > 4.2GB.
    • Any number of snapshots that can be written by EFDC and managed/used by EFDC_Explorer.
    • Output Plots and Tables in either Metric or English units.
    • Continuing support and development of the utility.

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    Pre-Processor-General

    • Pre-Processor for the EFDC 2D-3D Version.
    • Import many previous versions of the main control file (i.e. EFDC.INP).
    • Courant # and Courant-Fredrick-Levy calculator tools.
    • Run logging.

    Pre-Processor-Model Generation

    • Build Cartesian or simple Curvilinear models.
    • Cartesian models can use expanding grid spacing and grid rotations.
    • Easily increase or decrease vertical layering.
    • Import complex Curvilinear models generated by third party utilities:
      • Delft RGFGrid formatted file (i.e. GRD file) ,
      • Grid95,
      • SEAGrid, and
      • Any generic cell based nodal coordinate file.
    • Import grids from different hydrodynamic models:
      • CH3D-WES,
      • CH3D-IMS,
      • ECOMSED, and
      • Prior versions of EFDC.
    • Import grids with multiple sub-domains.

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    Pre-Processor-General Grid Tools

    • Grid Orthogonality statistics and plots.
    • Export any EFDC model grid as an RGFGrid formatted GRD file.
    • Export the model domain outline as a XY file (P2D format).
    • Export the model cells as a XY file (P2D format).
    • Transpose and/or flip the I and J indexes.
    • Clean and repair any DX/DY and cell angle problems using a repair utility.

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    Pre-Processor-Initial Conditions

    • Easy and fast plan views of the model domain with model option specific viewing options.
    • Develop/Edit bathymetry from Digital Terrain Models (DTM’s) or irregularly spaced elevation data.
    • Build/Edit sediment beds with toxics.
    • Set and edit cell properties by “point & click” on the model grid.
    • User defined polygon cell selections for editing.
    • Use simple operators to edit one or any number of cells.
    • View/Set Vegetation mapping (if used).
    • View/Set Groundwater mapping (if used).
    • Refine grid manually by activating/deactivating cells from the cell map.
    • Rapid setting of the initial conditions water surface or depths.
    • Use of 3D polylines to assist in setting initial conditions.
    • Create/Read a compact binary “archive” file for a model run.
    • Assign initial conditions using spatially varying vertical measured/estimated profiles.
    • View/Assign/Edit roughness field.
    • View Courant #/CFL map.
    • View/Assign/Edit "Channel Modifier" information/configuration (if used).
    • Set particle seeding and Lagrangian Particle Tracking control options.
    • Set up dye modeling capability
    • Set up computation for bed shear stress due to Wind Waves.

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    Pre-Processor-Boundary Conditions

    • Define/Edit/Plot flow, hydraulic structure, open and withdrawal/return type boundary condition groups.
    • Define harmonic tides
    • Set and edit boundary conditions by “point & click” on the model grid.
    • Boundary conditions time series intelligent editor and one-button plotting.
    • Use familiar names to identify and label boundary cells and input time series.
    • Label boundary groups on 2D maps and/or export group labels to a file for more control over labeling of maps in EFDC_Explorer or GIS applications.
    • HSPF model boundary condition interface to quickly import HSPF results to EFDC.
    • Generate spatially interpolated time series for open boundary conditions.
    • Use concentrations instead of mass loading (HEM3D default) for the water quality flow type BC groups.
    • Addition of Withdrawal/Return Boundary Condition.

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    Pre-Processor-Mass Balance/Boundary Loadings

    • Water Quality Boundary Conditions can be loaded as Concentrations rather than just Mass Loadings
    • Compute mass balance of various model constituents with plotting and tabular output of time series.
    • Plot the boundary condition loadings for various model constituents or some derived parameters like Total Phosphorus, Total Nitrogen or Total Carbon.
    • Compute average and cumulative loadings using the “Averaging” and “Integration” features of the time series plotting utility.
    • Generate mass loading summary tables for each simulated parameter.

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    Pre-Processor-Utilities

    • Tracer configuration utility.
    • A bitmap geo-referencing tool.
    • EFDC output file management utility.
    • Perform QA checks on input data prior to model runs.
    • Merge multiple continuation runs into single data sets
    • Create new model runs from any saved results from previous runs.
    • Unix to Windows CR/LF conversion.

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    Lagrangian Particle Tracking

      • Oil spill tracks
      • Emergency response
      • Water quality applications
      • Plume tracking

    Post-Processor-General

    • Post-Processor for the2D/3D EFDC_DS/EFDC_GVC model results.
    • Lagrangian Particle Tracking Plots and Animations.
    • “Age of Water” capability for both EFDC_DS and EFDC_Explorer to compute residence times and mixing.
    • Calendar day/Julian date labeling of plots and animations.
    • EFDC output file management utility for resampling (i.e. reducing snapshot frequency) or merging continuation runs into a single output file.
    • High Frequency Snapshot capability to insert high resolution results snapshots into the standard EFDC snapshot frequency.
    • Optionally plot the color ramp in grey scale (for publications).
    • Toggle on/off the display of titles on plots (for reports and publications).
    • Time Series Plots include box and whisker plots as well as great control over display of individual lines.

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    Post-Processor-ViewPlan (XY-Plan View)

    • View/label cell maps.
    • Quickly animate many of the results to the screen or an AVI file.
    • Export results to the commercial graphics package TECPlot?.
    • Compute model results statistics for current view or by polygon.
    • Overlay the model with line drawings and labels.
    • Display one or more georeferenced bitmaps as a background to the model grid.
      • Several views allow for transparent grid cells to view the background and model results.
    • Display a “Timing Frame” to temporally reference results to a boundary condition, like:
      • Tide series
      • Inflows/Outflows
      • Winds
    • Display spatial scales in various units.
    • Generate a new model from the output of an existing model for any selected time,
    • View water surface/depth maps, animations and time series.
      • Transparent Cells for water depths/elevations and other water column results.
      • Flood Inundation Mapping
      • Compute/Display areal extents based on specified a minimum depth and duration.
      • Compute/Display areal extents based on a Depth*Velocity Flood Hazard Factor.
      • Compare up to 3 models on the same plot showing Areal Extents.
      • Energy Mapping
        • Compute/Display total head (WS Elevation + v2/2g).
        • Compute FEMA Overtopping parameter (depth + v2).
    • View Sediment/Bottom results for any time output or animation, (by layer or averaged/totaled over the number of sediment layers):
      • Bottom topography elevations,
      • Bottom scour/deposition,
      • Bottom grain size distributions,
      • Bottom sediment mass distributions (by layer or totaled over the total number of layers (i.e. KB),
      • Bottom sediment mass fractions (by layer or averaged over KB),
      • Bottom sediment porosity (by layer or averaged over KB),
      • Bed surface shear stress.
    • View Water Column results for any time output or animation, (by layer or averaged/totaled over the number of water column layers):
      • Salinity,
      • Temperature,
      • Dye or a computed Age of Water (EFDC_DS Only),
      • Toxics,
        • Totals
        • DOC Complexed
        • Dissolved, and
        • POC Adsorbed.
      • Sediments (by class or totaled).
      • Water quality parameters
        • 22 EFDC modeled constituents
        • Derived parameters like Chl-a, algal growth limiters, and TSI’s.
      • Anoxic volumes (User specified DO cutoff)
      • Light penetration (Secchi Depth, Extinction Coefficients, % Irradiance).
    • View boundary conditions map and view boundary condition time series.
      • View profiles of sediment bed and water column properties with time.
      • Store and quickly display time series calibration comparisons.
      • Compare velocity data to other model runs or field data (e.g. ADCP)
      • Compare model results from two different models to each other.
    • View Sediment Diagenesis concentrations and nutrient fluxes
      • View by class or total concentrations of PON, POP & POC
      • View concentrations by diagenesis layer or totals
      • View nutrient fluxes
    • Model Metrics
      • Grid Orthogonality map & statistics,
      • Cell angle maps,
      • Courant Number,
      • Courant-Friedrichs-Levy (CFL) time step limits,
      • Froude Number,
      • Densimetric Froude Number,
      • Celerity, and
      • Richardson Number.
    • View Longitudinal Profile plots
      • Generate longitudinal plots of water column and bottom sediments results.
      • User specified layer averaging (e.g. "1-3” will average the bottom three layers).
      • Water column or bottom sediment data can be overlaid with bottom topography and/or water surface elevation/depth results and/or bed shear.
    • Overlay plan view plots with the following Calibration Data/Information:
      • Station ID,
      • Date/Time coordinated data values,
      • Date/Time coordinated data residuals, and
      • Data values and residuals can use the same depth averaging or specified layer options specified for the model results.
      • View plotting and animation of Lagrangian Particle Tracking.
      • Added the ability to export one or more particle tracks to ASCII files for linkage to 3rd party applications.

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    Post-Processor- Vertical Profiles (Distance/z)

    • View 2D vertical section plots along any I or J index or user defined polyline.
    • For any vertical section view/animate:
      • Velocities,
      • Salinity,
      • Temperature,
      • Dye or a computed Age of Water (EFDC_DS Only),
      • Toxics,
      • Sediments, and
      • Water quality parameters.

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    Post-Processor-Miscellaneous

    • Water flux calculator by layer or totaled for all layers.
    • Sediment mass balance/sediment mass loadings.
    • Toxics
    • Ability to compare Bathymetry between models.

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    Post-Processor-Calibration Comparisons

    • Time series comparisons for water column data of measured to modeled data for any layer, depth averaged and/or Min-Avg-Max model results.
    • Vertical profile comparisons.
    • Produce report ready graphics.
    • Calibration statistics using RMS Error, Average Error, Absolute Error, Relative Error and/or Nash-Sutcliffe Efficiency Coefficient.
    • Automatic generation of the calibration plots and correlation plots with calibration statistics.
    • Ability to created Correlation Plots for data versus model comparisons
    • Comparison of model results between multiple model runs.

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