Hyrum Reservoir and how it applies to Flood Control by Nathan Wright

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Presentation transcript:

Hyrum Reservoir and how it applies to Flood Control by Nathan Wright Objective: Develop a ratio of snow water equivalent to stream flows and characterize Hyrum Reservoir as a Flood Control Device. Watershed Delineation Stream Flow Snow Pack Snow to Stream Flow ratio Hyrum Reservoir and Flood Control

Location Map

Tools Used to Delineate Watershed Pit fill Flow Direction Flow Accumulation Watershed Raster Calculator Stream Link Stream to Feature Raster to Polygon Stream Order

Stream flow Data LITTLE BEAR RIVER AT PARADISE, UT

Stream flow Data

SWE vs. Elevation using Linear Regression Raster Calculator to calculate SWE over watershed

Compare Snowmelt Runoff Ratio at 3 different year: Stream Flow vs. SWE Compare Snowmelt Runoff Ratio at 3 different year: Least Runoff Year Mean Runoff Year Max Runoff Year

Reservoir Routing h If h > Design Elevation, then release is maximum If h ≤ Design Elevation, then release minimum downstream flow If h < Dead Zone, then no release

Questions?