Provo River Watershed Modeling with WMS Ryan Murdock.

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Presentation transcript:

Provo River Watershed Modeling with WMS Ryan Murdock

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

DEMs and DRG

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

Flow Accumulations (threshold = 1000)

Delineated Basin elevation~ 1200m-3800m

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

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

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

Water Resources Engineers at work