1. NFIE-Geo HMS Model: Extraction Tool
Cyndi V. Castro

3. x929

4. NHDPlusV2 Hydrologic Regions

5. HMS .BASIN Extraction Tool Using Python Scripts
Download NFIE-Geo
Clip to County
Calculate Parameters
HMS .BASIN Script
Custom Code

6. Convert to Geodatabase Sink/Source/ Reservoir
NFIE-Geo (HydroShare)
- Subwatersheds
- Catchments
- Flowlines
Soils
Table
County
Land Use (NLCD 2011)
Download Data
- Scratch Folder
Convert to Geodatabase
- Coordinates
Clip to County Extents
- Select by intersection
- Extract by mask
Soils (STATSGO2)
DEM (NED30, ESRI)
DEM Slope
- Mean % Rise
Zonal statistics
Append Subbasins
Land Use/Soils
Reclassify
Union
Clean Up
Curve Number
- Lookup Table
Individual CN
Composite CN
Lag Time
NRCS Equation
length, CN, slope
Muskingum
k, sec to hours
Time Step (celerity)
Sink/Source/ Reservoir
Dissolve/Intersect
Artificial Path
Downstream
NextDownID
DS2, DS3
Connectivity
Geometry Attributes
- Coordinates
Area
COMID/FEATUREID
Arcpy and custom hard-coding
Processing, spatial joins, define watersheds by county
Write .BASIN Script
- Merge Subbasin and Flowline - Loop through Search Cursor

7. Sinks, Sources, Reservoirs

8. Case Studies

9. Catchments Time (min) Bexar 764 8 Dallas 433 7 McLennan 508 3
Montgomery
806 4
Nacogdoches
915
Orange
541 2
Taylor
454
Travis
929
Simulation time

10. Hydrograph Output
CN generator – can be used to alter land use

11. Steps Forward Create GIS Toolbox Compare to Local Models
Use GIS Services
Information-based instead of model-based
Resources.arcgis.com