1. Provo River Watershed
Modeling with WMS
Ryan Murdock

2. Creation of Hydrologic Model
Import 17 USGS 7.5 minute quads
30m resolution
UTM projection
Import 250K Digital Raster Graphic (DRG)

3. DEMs and DRG

4. DEM Processing Fill no data cells Smooth DEM
Compute flow directions & flow accumulations
Convert raster streams to feature arcs
Choose outlet
Set accumulation threshold
Delineate basin boundaries

5. Flow Accumulations (threshold = 1000)

6. Delineated Basin elevation~ 1200m-3800m

7. More Data USGS gaging stations Land use/land cover data Provo
Vivian Park
Heber
Land use/land cover data
CN extraction

8. Completing the Model Create and study sub-basins
Calibrate flow rates to gaging station records (HEC-1)
Input Reservoirs (Deer Creek)

9. Further Analysis Analyze lag time & time of concentration approaches
Robustness of equations
Sensitivity to slope, area, and location
Try multiple methods on same area
Compare results

10. Water Resources Engineers at work