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Progress Report

This progress report discusses the developments in modeling a campus sub-basin at UT Austin using HEC-HMS. The original project idea was scrapped due to challenges in finding adequate GIS data and lack of measured flow data for model validation. A new study area with specific characteristics was selected on the UT campus at 24th and San Jacinto. Dr. Barrett has a monitoring point at the basin outlet, providing access to rainfall and runoff data. The goals include creating a terrain model in Arcview, processing it with HEC-geoHMS, and building a hydrologic model in HEC-HMS. Calibration and evaluation with measured data will follow. Current progress involves defining the new project, acquiring GIS data, and creating the terrain model in Arcview using TINs developed by Azagra and Tate and a one-meter DEM from USGS. Interesting questions for exploration include choosing the best data source, utilizing HEC-geoHMS, creating a meaningful hydrologic model for a restricted basin, and understanding the interactions of this model with others in the area.

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Progress Report

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  1. Progress Report Modeling a Campus Sub-basin With HEC-HMS

  2. Developments • Original project idea scrapped • Difficult to find adequate GIS data • No measured flow data to validate model results • Selected new study area

  3. New Area

  4. Area Characteristics • Located on UT campus at 24th and San Jacinto • Dr. Barrett has a monitoring point at basin outlet • Have access to a great deal of rainfall and runoff data

  5. Goals • Create terrain model in Arcview • Process terrain model with HEC-geoHMS • Create working hydrologic model in HEC-HMS • Calibrate model and evaluate results with measured rainfall and runoff data

  6. Current Progress • Defined new project • Acquired GIS data • Creating terrain model in Arcview

  7. Data • TINs developed by Azagra and Tate • One-meter DEM developed by USGS (courtesy of Becky)

  8. Interesting Questions • Which data source is best suited for this application? • How can we use HEC-geoHMS? • How can we create a hydrologic model a restricted basin in a meaningful way? • How will this model interact with other models created in the area?

  9. Questions ?

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