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EFDC+ Explorer Modeling System
EEMS: The complete modeling package for hydrodynamics, sediment transport, toxics transport, and eutrophication.
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Webinar: Increasing the Performance of EFDC+ Models using Domain Decomposition

June 5, 2020

Join Mr. Paul Craig, the chief developer of EFDC+ and EEMS to learn how domain decomposition and MPI can help speed up your EFDC+ model.

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Shellfish Farm Module in EEMS10.2

May 6, 2020

EEMS from version 10.2 onwards will include a Shellfish Farm Module. This module incorporates a modeling approach….

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Implementation of Domain Decomposition in EFDC+ Using MPI

April 29, 2020

A primary function of EFDC+ is to solve the governing Partial Differential Equations (PDEs) for fluid flow and…

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Partial Depth Flow Blocking – Part 2

October 18, 2019

Simulating the effect of floating bridge on salinity in Lake Washington.

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Partial Depth Flow Blocking Part 1

October 10, 2019

DSI has added a new capability to EFDC+ 10.1. This new capability allows the model to simulate partially…

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New EEMS Feature Timely For Hurricane Season- 4 Weeks Until Release

September 6, 2019

EEMS10 now has the ability to simulate spatially and temporally varying fields, such as a wind or barometric pressure fields.

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New Ice Melt Formulation

February 27, 2019

We are currently working to improve the ice melt formulation in EEMS, a new update for EEMS will be available with this feature later this month!

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Ask The Experts: Sediment Transport Modeling

January 29, 2019

For sediment transport modeling, EFDC requires a modeler to define particle size classes and specify the median diameter for each class, which can represent the average behavior of the particles…

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Sigma-Zed Model in EFDC+

August 13, 2016

DSI has developed an improved version of the EFDC code to help deal with pressure gradient errors that occur in simulations that have steep changes in bed elevation….

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