Stable Release Setup Package
Release notes

EFDC+ Explorer 11.8.2 and Grid+ 1.0.2


Bugs Fixed:

  • 2DV view did not display color after changing the color ramp settings.
  • Mean predicted value in the reported statistic was incorrect.
  • Crash when configuring settings in Hydraulic Structure Control Rules form.
  • Crash when inputting water quality input data.
  • Renamed variables in NetCDF exported from EE for both the bed top mass cohesive and the bed top mass noncohesive.
  • Changed the sediment bed mass fractions for the top two layers to zero (sedb.inp & snd.inp) when modifying vegetation class parameters via 2DH view.
  • Wind station location does not save.
Edge Release Setup Package

EFDC+ Explorer


  • Both the original EFDC sediment module and the SEDZLJ module underwent important improvements. This involved an upgrade of the top bed layer check, as well as addressing issues related to total mass and hard bottom cells in 2DH, timeseries, 2DV, vertical profiles, and longitudinal profile plots.
  • Plots for Hydraulic Structure boundary updated
  • Improvements to the Run bat file:
    • Set KMP_BLOCKTIME=200 in bat file.
    • Remove the %PATH% from the set path line.
    • Set communication fabric on all MPI runs: I_MPI_FABRICS=shm and I_MPI_FABRICS=shm:ofi
    • OMP_NUM_THREADS with smt/hyperthreading system
  • Updated the wind direction convention (0: Towards, 1: From) in the form and report
  • Added anti-aliasing in 2DH

Bugs Fixed

  • Interface:
    • Missing two buttons in Error Statistics Report.
    • Corrected SWAN spelling issue and rearranged.
    • Resolved Groundwater Unit Display issue.
    • Added tooltips for Wind Direction Convention.
    • Updated Atmospheric Interface.
  • Layout settings:
    • Fixed Time series layout, calibration time-series plots issues
    • Resolved issues with reading calibration layout from files
  • Input files:
    • Corrected parameter names in the parameter descriptions of efdc.inp.
    • Fixed the data series format in Sdser.inp not updating correctly.
    • Resolved the issue that EE did not read format number of Boundary Conditions data series.
    • Updated WQ mass loading concentration data series (wqpslc.inp).
    • Fixed incorrect west direction existing flow in sedblbc.inp, and undesired updates in sedblbc.inp file’s direction parameters.
    • Fixed reading C24 for grouping Flow BC in the legacy model.
    • Fixed reading itype for the legacy model for WSEL data.
    • Resolved issues with WSE data series are not assigned to water level boundaries when reading legacy pser.inp without ITYPE.
  • Modules:
    • Adjusted LPT Interface Boundary.
    • Changed SWAN Model button name “Create SWAN Input Files” and “Import SWAN Results”
    • Fixed issue that Time Aggregation feature does not work
    • Fixed DZCKTop and Downstream projection issues
  • 2DH and Timeseries, 2DV:
    • Updated MPI Sub domain in Cell Map
    • Fixed Sediment Bed Mass Fraction Top Layer Display issues in 2DH and Time Series
    • Fixed date conversion with F7 key in 2DH legend
    • Fixed “Select Object inside Polygon was not reset in 2DH” issue
    • Resolved issue when selecting points from a file in 2DH does not update instantaneously
    • Adjusted LPT Track Display in 2DH
    • Updated LPT for 2DV viewing and selected drifters
    • Added Zooplankton parameters to plot in 2DH
    • Fixed 2DH Model Comparison shows the NAN value for certain areas
    • Activated the Tab key to jump between fields in 2DH cell selection form
  • 3D View:
    • Corrected the color range
    • Updated the clipping
    • EE changed the sediment bed mass fractions for the top two layers to zero (sedb.inp & snd.inp) when modifying vegetation class parameters via 2DH view.
  • Crash issues:
    • Crashed when configuring settings in Hydraulic Structure Control Rules form.
    • Crashed when inputting water quality input data.
    • Crashed some places if the path contained illegal characters
    • Crashed while changing Vertical Layers in some cases
    • Crashed if set only one layer for SGZ
    • Crashed when reading WC.out of the legacy model (Deepak – Lower Bow)
    • Crashed on 2DH and 3D when using remote desktop on AMD CPUs
    • Crashed after adding Biota group
    • Crashed if clicking on Copy & New button in Boundaries Data Series
  • Others:
    • EE did not create the #analysis folder when loading the model.
    • Timing option setting works improperly when using the duration of the reference period
    • Fixed issue SEDZLJ outputs for bed wet density time series
    • m_NK was not set correctly when changing layer splits which can cause crash
    • Fixed computed flow issues
    • Fixed Wind Speed Conversion Factor issue
    • Time Variable Data Field: Bottom Roughness issue
    • Mass Balance class options issue
Tools - EEMS-BASINS Plugin 1.6

This EEMS plugin for BASINS exports a BASINS model and creates a grid and hydrodynamic model in EEMS. The download includes a pdf file with instructions for installation and use. Learn more on the landing page and this video demonstrates the steps required to build a watershed model in BASINS with Lake Mendota. 

Understanding EEMS Version Numbers

DSI now provides a stable and an edge release version of EEMS. We will provide only GUI bug fixes to the stable version and not add any new features, or make changes to the computational engine.

Edge release will include minor enhancements, features, and fixes to both the GUI and computational engine (EFDC+).

The naming system works in such a way that the second number, 10.x.0 represents, at minimum, a change to EFDC+, and the third number 10.3.x represents a fix to EE.

Details of all of the improvements for EFDC+ Explorer and EFDC+ can be found in these links.