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Making Better Decisions in an Uncertain World

Reservoir Operations Modeling. Making Better Decisions in an Uncertain World. Modeling Reservoirs. Continuity Equation Balance multiple objectives Represent operational controls. Basic Processes. Inflow. Evaporation. Spillway. Reservoir. Seepage. Sedimentation. Outlet.

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Making Better Decisions in an Uncertain World

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  1. Reservoir Operations Modeling Making Better Decisions in an Uncertain World

  2. Modeling Reservoirs • Continuity Equation • Balance multiple objectives • Represent operational controls

  3. Basic Processes Inflow Evaporation Spillway Reservoir Seepage Sedimentation Outlet

  4. Reservoir Pools Dam Freeboard Surcharge Flood Control Conservation Dead Pool

  5. Dead Pool • “Inactive” pool • Maintain head for hydroelectric power • Fish habitat • Sediment reserve

  6. Conservation Pool • Municipal & industrial supply • Irrigation • Navigation/recreation • Hydroelectric Power • Instream flow maintenance

  7. Seasonal Conservation Pool Surcharge Flood Control Pool Reservoir Elevation Conservation Pool Inactive Pool Months (Jan – Dec)

  8. Flood Control • Remains empty • Weir or Orifice • Downstream control • Upstream control

  9. Surcharge • Weir flow over spillway • Uncontrolled storage capacity • Presents risk downstream • Never overtop dam under any condition

  10. Flood Control vs. Conservation • Continuous balancing act • Model impacts • Policy changes • New facilities • New supplies

  11. Questions? Jason Lillywhite, P.E. For a free trial version of the software, visit: www.goldsim.com

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