EFDC+ MPI Multi-core Scaling Study
In 2020, DSI implemented MPI in EFDC+ to improve model run time. We created a detailed model of the…
Validation of New Jet and Plume Features in EEMS
In a recent blog, we highlighted some of the recent enhancements to the jet and plume features in EEMS…
Enhanced Jet and Plume Features Coming to EEMS
Simulation of jets and plumes is an essential aspect of computational fluid dynamics. Jet and plume modeling…
Major Changes in Eutrophication Module from EFDC+10.3 to EFDC+10.4
This blog post describes significant changes in this module that include bug fixes and new features.
Mass Balance Calculation for Waterbodies using EEMS
Modeling the waterbody requires the estimation of mass balance of all the constituents that enter and exit the modeling domain…
Impact of Elevation on DO Saturation
A commonly recognized phenomenon is that as the altitude increases, the atmospheric pressure decreases. Decreased atmospheric pressure leads to a decrease…
Selecting Hydrodynamic and Water Quality Modeling Software
The modeling software you select for your project depends on project objectives, budget, schedule, and available programming resources. A general set of modeling…
A Review of EFDC Versions
Over the years, multiple versions of EFDC developed and supported by different organizations have come become available. This post reviews some of these versions and provides the key differences among them.
Lake Okeechobee Hurricane Simulation
In recent decades, loss of life from natural disasters has dropped considerably as we have become better…
Estimating Ship Engine Power for EFDC+ Propeller Wash Simulations
Developing a propeller wash model requires specifying the ship and propeller properties as model…
EEMS10.4 to WASP8 Linkage
The Water Quality Analysis Simulation Program (WASP) is a dynamic, spatially-resolved, differential mass…
Single-layer vs. Multi-layer Simulations in EEMS
The selection of single-layer vs. multi-layers for simulating hydrodynamic and water quality depends upon…
Compile EFDC+ Source Code using Intel oneAPI
To support the scientific community, DSI offers an open-source version of EFDC+. This refers to the EFDC+8.5….
Modeling Tropical Cyclones in EEMS
The upcoming release of EEMS10.4 will feature a new tropical cyclone module. This module will allow the user…
Using EEMS to Model the Effects of Sediment Dredging
Dredging refers to excavating sediments under a water body. The purpose for each dredging operation varies…
High-Resolution Marine Cadastre AIS Data for Propwash Modeling
Propeller wash (propwash) causes sediment scour in the seabed that can threaten the safety of structures….
Coupling HSPF Water Quality Model with EFDC+
Kingston Ferry Terminal Propwash Simulation Sediment erosion caused by propeller wash from ships is of considerable…
Kingston Ferry Terminal Propwash Simulation
Kingston Ferry Terminal Propwash Simulation Sediment erosion caused by propeller wash from ships is of considerable…
Lake Washington Real-Time Model
BACK Lake Washington Real-Time Model DSI recently developed a real-time model for Lake Washington, along with a public-access model portal. The portal allows users to view historical and current data on measured and simulated water levels, temperature, and velocity, presented in map view, time series, and vertical profiles. Users can also compare the data with…
JSON Formatted Files in EEMS
BACK JSON Formatted Files in EEMS JSON (JavaScript Object Notation) is an increasingly common standard data format to store and transmit data objects that use text designed to be easily read by humans. JSON serves as a syntax for serializing objects, arrays, numbers, strings, booleans, and null. Although it is based upon JavaScript syntax, it…