Development of a Large Network Model to Evaluate the Yield of a Proposed Reservoir

by John E. Law, Hydro-Triad Ltd, United States,
Michael L. Brown, Hydro-Triad Ltd, United States,

Document Type: Proceeding Paper

Part of: Computerized Decision Support Systems for Water Managers


The model simulates the operation of the Colorado River system upstream of Grand Junction, Colorado, and both the West Slope and the East Slope components of Colorado-Big Thompson system. Portions of the Cache la Poudre basin are also modeled. The model (MODSIM) was used to evaluate the effects of existing and proposed water projects on the yield of a reservoir on the Cache la Poudre River below the town of Poudre Park, Colorado. The model incorporates all major storage facilities, conveyances, trans-basin diversions, and municipal, agricultural and industrial demands which may effect storage in the proposed reservoir. The model was successfully calibrated for a four year test period against monthly historic flows and then used to simulate operation for a thirty year study period. The development of the model is described and some of the problems related to the model size are discussed.

Subject Headings: Hydrologic models | Reservoirs | Slopes | Water storage | Storage facilities | Industrial facilities | Mathematical models | Simulation models | Colorado | United States | Colorado River

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