EWN Engagements

Gridded Surface Subsurface Hydrologic Analysis (GSSHA) Model Training for EWN Project Design

Multi-day Event (September 6-
7, 2023)


This training event took place on 6-7 September 2023 in Norman, Oklahoma, sponsored by the U.S. Army Corps of Engineers Hydraulics and Hydrology (H&H) Set and the Engineering With Nature Program.

The training workshop introduces the Gridded Surface Subsurface Hydrologic Analysis (GSSHA) model and the Department of Defense Watershed Modeling System (WMS). Instructors include the GSSHA developers Drs. Aaron R. Byrd, Charles W. Downer, and Nawa Pradhan USACE-ERDC, Dr. Chris Smemoe from Aquaveo, and GSSHA application expert Mr. Stephen J. Turnbull USACE-ERDC.

This course is intended for anyone interested in watershed hydrology as it relates to design of EWN projects. Experience with hydrologic modeling and numerical methods are a plus, but not required. Some college-level background in hydrologic science and/or engineering is required.

Students will learn the basics of:

  • Gridded Surface Subsurface Hydrologic Analysis (GSSHA) model, developed at the U.S. Army Corps of Engineers, Engineering Research and Development Center and the University of Wyoming
  • Dept. of Defense Watershed Modeling System (WMS), developed by Aquaveo LLC
  • Spatial data needed to estimate distributed GSSHA model parameters, including data requirements, basics of GSSHA/WMS and how to find and use spatial geographic data to develop GSSHA models using the WMS Hydrologic Model Wizard.
  • How to utilize GSSHA and WMS to design EWN projects.

Click here to read more about:

  • Course layout
  • Requirements
  • Tutorial downloads
  • Fees, access, other
  • Professional Development Hours (PDHs)
  • Schedule

For additional information and to sign up for the course contact Aaron Byrd at aaron.r.byrd@erdc.dren.mil.

Related Tool

The Watershed Modeling System (WMS) is a complete watershed modeling system that enables engineers to create watershe...
Gridded Surface Subsurface Hydrologic Analysis (GSSHA) is a physics-based, distributed, hydrologic, sediment and cons...

Point of Contact

Research Civil Engineer, Coastal and Hydraulics Laboratory, ERDC


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