Application to the City of Austin
Urban systems pose special challenges for developing an ArcGis Hydro Data Model because of the impact of constructed facilities on the patterns of water movement through the landscape. In this chapter, detailed information from aerial photogrammetry is used to build a Hydro Network for the City of Austin.
In this chapter:
Defining the scope of interest
Building the hydro network
Delineating watersheds and comparing them to known boundaries
Delineating watersheds from points of interest
Defining hydro response units
Applying the ArcGIS Hydro Data Model
Creating a map of the result
Click here to view the PDF version of Chapter 9.
Chapter 9 Data
Watersheds contains watersheds delineated from grid operations and defined by known watershed outlet points and USGS gage stations. Waterbodies contains waterbodies which were burned into the DEM with the stream network. User Point contains known watershed outlet points used in watershed delineation. Monitoring Point contains USGS stream gages used in watershed delineation. Hydro Edge contains the Austin stream network subtyped into Flow Edges (channels) Virtual Flow Edges (waterbody centerlines). Edge Catchment and Hydro Junction contain no data but are present in the geodatabase because they are involved in relationships defined in the ArcGIS Hydro Data Model.
The geodatabase (in zipped format) can be found in the folder ArcGIS\Chapter9\Chapter9data, along with the DLL file needed in order to run the ArcGIS Hydro Data Model in ArcCatalog or ArcMap. For instructions on how to use the DLL file and deploy the data model, go to the Instructions page.
Chapter 9 Display
The data from Chapter 9 can be viewed as a map document or template in ArcMap.
The map can be found in the folder ArcGIS\Chapter9\Chapter9Data and viewed in ArcMap.
