GeoHECRAS provides several GIS mapping functions that will automatically map GIS attribute data to the HEC‑RAS model. These functions include:
- Assigning channel banks
- Assigning flow lengths
- Assigning ineffective flow areas
- Assigning conveyance obstructions
- Assigning levees
- Assigning Manning’s roughness
To access these GIS mapping functions, select the Assign Entities dropdown menu item from the Input ribbon menu.
In addition, there are additional GIS mapping functions available in the Manning’s Roughness dropdown menu item of the Input ribbon menu.