Loading Data into ArcHydro

1. Loading Data into ArcHydro Setting up the HUC workspaces

2. Directory Structure StreamStats Data Prep Workshop Oct 21-22, 2003

3. Set up Globally Unique HydroID Generation • This is optional • It may be a good idea if: • You ever might combine ArcHydro datasets • You have multiple people working on pieces of ArcHydro data that may be merged later • I’m currently thinking it is more trouble than it is worth StreamStats Data Prep Workshop Oct 21-22, 2003

4. Make a Generic MXD File • This is to save time loading data sets into the MXD • Map Properties set to “Store Relative Paths” • Copy this to each HUC directory and rename it e.g. 17060201.mxd StreamStats Data Prep Workshop Oct 21-22, 2003

5. Vector Preprocessing • In each HUC folder, do the following: • Open the MXD • Zoom to the fdr grid • Catchment Polygon Processing • Drainage Line Processing • Adjoint Catchment Processing • Save and close ArcMap • Compact and Repair Database StreamStats Data Prep Workshop Oct 21-22, 2003

6. Terrain Preprocessing StreamStats Data Prep Workshop Oct 21-22, 2003

7. Adjusting Flow Accumulation • Non-headwaters HUCs do not have the full accumulated flow in the fac grid • We need to adjust the flow accumulation to account for the incoming flow from upstream HUCs • Use map algebra to do this adjustment StreamStats Data Prep Workshop Oct 21-22, 2003

8. Stream Definition StreamStats Data Prep Workshop Oct 21-22, 2003

9. Stream Segmentation StreamStats Data Prep Workshop Oct 21-22, 2003

10. Catchment Grid Delineation StreamStats Data Prep Workshop Oct 21-22, 2003

11. Catchment Polygon Processing StreamStats Data Prep Workshop Oct 21-22, 2003

12. Drainage Line Processing StreamStats Data Prep Workshop Oct 21-22, 2003

13. Adjoint Catchment Processing StreamStats Data Prep Workshop Oct 21-22, 2003

14. Adjoint Catchment 151 StreamStats Data Prep Workshop Oct 21-22, 2003

15. Compact and Repair DataBase StreamStats Data Prep Workshop Oct 21-22, 2003