INSTRUCTORS:
Sarah Bengtson
James Heyen, P.E., CFM, M.ASCE
Kenneth Puhn, P.E., CFM, M.ASCE

This course is just right for modelers wanting to bring ArcHydro, HEC-RAS and HEC-HMS together and advance to the next level. Jean Thibodeaux, J Thibodeaux & Associates, Covington, LA

This workshop-oriented, two-day seminar presents the practical application of the ArcGIS extensions ArcHydro and HEC-GeoHMS. GIS data models and concepts supporting hydrologic modeling are also discussed. The seminar will be taught by experts with practical experience in GIS and hydrologic modeling. Seminar participants will learn how to process data and create hydro networks using ArcHydro, build a project in HEC-GeoHMS and prepare the data files for HEC-HMS, and set up projects within the HEC-HMS environments.

ArcHydro is a set of tools for extracting hydrologic data from a digital elevation model (DEM) in the ArcMap application. These data include watershed boundaries, stream networks, and other watershed parameters used for the development of hydrologic models. ArcHydro is the preprocessor for HECGeoHMS. HEC-GeoHMS prepares the layers generated by ArcHydro for use in the HEC-HMS hydrologic program. In combination with GIS data layers for soils, land cover, and rainfall, HECGeoHMS has several widely used methods available for computing loss parameters for input into the HEC-HMS program.

Seminar Benefits and Learning Outcomes

Upon completion of this seminar, you will be able to:

• Explain the 3 functional surfaces supported in ArcGIS
• Discuss the common ArcGIS geoprocessing and raster analysis tools used in water resources
  modeling
• Apply ArcGIS tools and the Arc Hydro extension to process terrain data and develop model
  parameters
• Construct a HEC-HMS model with HEC-GeoHMS

Assessment of Learning Outcomes

Instructor(s) will observe student performance during multiple computer workshop problems, and students will take a test at the end of the class with questions addressing these items. The test will be graded in class by their classmates as the instructor goes over each question and answer.

Special Features

Via email, approximately 5 days prior to the seminar, workshop participants receive the following publications and software:

• ArcHydro and HEC-GeoHMS software (latest version)
• HEC-GeoHMS User Manual
• Course Notes and Workshop Solutions

Who Should Attend?

Engineers, water resource planners, and GIS staff who are currently performing, or at some point plan to perform, hydrologic analyses using HEC-HMS. Familiarity with ArcGIS is desirable but not required.

Seminar Outline

TIME: 8:00 a.m. - 5:00 p.m.

Day One

• GIS Basics
• Surfaces:TINs, Terrains, and Grids
• Building a Curve Number Grid (workshop)
• Delineating Streams and Watersheds
• Using Spatial Analyst extension (workshop)
• ArcHydro Data Model and Terrain Preprocessing

Day Two

• Overview of HEC‐HMS
• HEC‐GeoHMS
• HEC‐GeoHMS (workshop)

Hotel Information

Discounted hotel rooms are available on a first-come, first-served basis. See discount deadline and rates below.

Important Details About Your Seminar