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 in ports and harbors and cause environmental problems
Coupling HSPF Water Quality Model with EFDC+
Developing a hydrodynamic or a water quality model may require input of boundary conditions from other models.
Kingston Ferry Terminal Propwash Simulation
Sediment erosion caused by propeller wash from ships is of considerable concern in many ports and harbors for terminal safety.
Lake Washington Real-Time Model
DSI recently developed a real-time model for Lake Washington, along with a public-access model portal.
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.
Enhancements to the EEMS GUI
As we added new features to EFDC+, our Graphical User Interface (GUI), EFDC+ Explorer (EE) has also changed to support these new features and capabilities.
Modeling Interaction Between Phytoplankton and Zooplankton in EEMS
Zooplankton population modeling is a significant new feature in the recently released version of EFDC+ Explorer Modeling System (EEMS 10.3)
Transforming Node Time Series Model Result to EE Field File
In many situations, a modeler may need to incorporate results from an external model into an EFDC+ model.
Testing Procedures for the EFDC+ Propeller Wash Module with Sediment Transport
DSI is continually developing new features for EFDC+ and EFDC+ Explorer Modeling System (EEMS).
NetCDF-CF and UGRID Formats
As modelers, we often deal with a variety of data types that encompass single-point observations, time series, regularly spaced grids
Creating Great Animations in EEMS
Communicating your modeling results is as important as developing a good model.
Simulating Wind-Induced Waves in EEMS
High wind speeds associated with hurricanes are capable of producing extreme waves, and high winds, currents, and tides can combine to create storm surge.
Simulating Biota in EFDC+
In our earlier water quality blogs, we provided a preview of new features in the upcoming version of EEMS which will include unlimited phytoplankton and zooplankton classes
Velocity Profile of a Propeller Moving Through a Channel
In our propeller wash (propwash) blog series, we have shared details of the propwash simulation feature that will soon be available in the upcoming version of EEMS.
Propeller Wash Simulation Using Historical Ship Track Data
Simulation of the impacts of propeller wash in hydrodynamic and sediment transport models requires detailed information on ship travel routes and the physical characteristics of each ship.
The Importance of Propeller Wash Modeling
Many urban waterfronts are contaminated with metals, petroleum hydrocarbons, and other organic chemicals, often as deep as 20 feet within the sediment bed.
Modeling Climate Change Impacts Using EE
Climate change is an accepted reality, so most infrastructure development and maintenance will require the evaluation of possible impacts of climate change.
Modeling Sediment Resuspension in a Coastal Environment Due to Ship Traffic
Sediment resuspension occurs in harbors across the world as a function of propeller-induced water velocities, and resulting shear stress, at the sediment-water interface.
Simulation of Manatee Habitat with EEMS
The warm waters and shallow, vegetated waterways of the Gulf of Mexico provide valuable habitat to a diverse range of plants and animals.
EFDC+ with Hydrologic Simulation Program-Fortran (HSPF)
Developing a hydrodynamic or a water quality model often requires boundary conditions from other sources
Fortran – A Language for Engineering and Scientific Computing
With so many new computer languages available today, a question often asked is, Why is EFDC+ coded in Fortran language
Generating Field Files for EFDC+ from External Data using Python
Following the release of EEMS10.2, the DSI Team is busy developing exciting new features for the next version of EEMS.
Coming Soon: Unlimited Phytoplankton and Zooplankton Modeling in EEMS
Following the release of EEMS10.2, the DSI Team is busy developing exciting new features for the next version of EEMS.
Webinar: Increasing the Performance of EFDC+ Models using Domain Decomposition
EEMS 10.2 includes EFDC+ with domain decomposition and Message Passing Interface (MPI) to significantly improve the model performance.
Shellfish Farm Module in EEMS10.2
The new shellfish sub-model in EEMS10.2 was used to replicate the Kobayashi et al., (1997) test case
Implementation of Domain Decomposition in EFDC+ Using MPI
A primary function of EFDC+ is to solve the governing Partial Differential Equations (PDEs) for fluid flow and constituent transport.
EFDC+ v10.2 MPI – Benchmark Test
To assess the performance of the Message Passing Interface (MPI) implementation with Environmental Fluid Dynamics Code Plus (EFDC+)
Automated Nested Model Configuration
EEMS has been enhanced with a new feature which helps you develop nested EFDC+ models.
Partial Depth Flow Blocking - Part 1
DSI has added a new capability to EFDC+ 10.1. This new capability allows the model to simulate partially blocked depths due to floating objects
Partial Depth Flow Blocking - Part 2
Lake Washington is a very deep lake that made conventional bridge construction difficult. To allow a traffic to cross the lake, a floating bridge was constructed.