Arcgis hec ras interface data model rashydro
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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

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

  • 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


Geodatabase design
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


Model associations are preserved
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


Equivalent representation of model content
Equivalent Representation of Model Content

RASHydro geodatabase

HEC-RAS files


Main components
Main Components

  • Geometry Import File Feature Dataset

  • Geographic Data Export File Feature Dataset

  • ProfileLine feature dataset

  • Cross Section feature dataset

  • Time Series object classes







Final remarks
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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