Evaluating Multi-Purpose Reservoir Operations Using Fuzzy Dynamic Programming

by Enrique Moncada, Colorado State Univ, Fort Collins, United States,
Darrell G. Fontane, Colorado State Univ, Fort Collins, United States,
Timothy K. Gates, Colorado State Univ, Fort Collins, United States,

Document Type: Proceeding Paper

Part of: Water Policy and Management: Solving the Problems


The study described in this paper was designed to assess the feasibility of reservoir operators and water users defining membership functions for evaluating multiple objectives and to evaluate the utility of these membership functions in dynamic programming for planning the operations of the proposed Grey Mountain Reservoir on the Cache la Poudre River in northern Colorado. Surveys were used to interview water users and managers and membership functions, in terms of reservoir releases or storage, were developed for evaluating objectives including water supply, flood control, hydropower, rafting, kayaking, angling and fish habitat. An implicit dynamic programming formulation was developed wherein the end-of-year storage was treated as a fuzzy goal and all other objectives were treated as fuzzy constraints. The resulting reservoir operations were evaluated in a simulation model.

Subject Headings: Water storage | Reservoirs | Fuzzy sets | Computer programming | Feasibility studies | Aquatic habitats | Hydrologic models | Construction management | Colorado | United States

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