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ArcGIS HEC-RAS Interface Data Model “RASHydro”

ArcGIS HEC-RAS Interface Data Model “RASHydro”. July, 2003. Objectives. Transform the pre- and post- file structure of HEC-RAS into a geodatabase format Provide a geographic database for HEC-RAS information content for reverse-engineering purposes

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ArcGIS HEC-RAS Interface Data Model “RASHydro”

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  1. ArcGIS HEC-RAS Interface Data Model“RASHydro” July, 2003

  2. Objectives • Transform the pre- and post- file structure of HEC-RAS into a geodatabase format • Provide a geographic database for HEC-RAS information content for reverse-engineering purposes • Take advantage of existing spatial functionalities in Arc Hydro data models and HEC-GeoRAS pre- and post- processor for floodplain analysis • Facilitate model connectivity/interface with external applications

  3. Geodatabase Design Formatting a model-content geodatabase with HEC-RAS data storage structure to add interface functionalities A Model Interface GDB Visio 2000 UML ArcGIS Repository Geodatabase Schema

  4. Model Associations are Preserved Maintains relationships between hydrologic elements in HEC-RAS model, features in RASHydro geodatabase, and ArcHydro Arc Hydro HydroID RAS Interface FeatureID ModelID

  5. Equivalent Representation of Model Content RASHydro geodatabase HEC-RAS files

  6. Main Components • Geometry Import File Feature Dataset • Geographic Data Export File Feature Dataset • ProfileLine feature dataset • Cross Section feature dataset • Time Series object classes

  7. Geometry Import File Feature Dataset for HEC-RAS

  8. Geographic Data Export File Feature Dataset for HEC-RAS

  9. The Profile Line Feature Dataset

  10. The Cross Section Feature Dataset

  11. The Time Series Manager

  12. Final Remarks • A work in progress and some refinements and extensions still need to be done • Inclusion of bridges and culverts, levees, Ineffective flow areas, weirs, and blocked obstructions needs to be done • Final version of the HEC-RAS interface geodatabase should include all possible set up configurations and options to store the complete Model representation of the project at hand

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