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Feedback Method of Control for Estuary Management

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  • I. Tuncok
  • Larry Mays

Abstract

A feedback method of control has been used to develop a model for optimal determination of freshwater inflow to bays and estuaries. A modification of the feedback method of control was implemented which makes the technique applicable to certain constrained optimal control problems. The modified feedback model for estuary management consists of a hydrodynamic-transport salinity model, HYD-SAL, coupled to a dynamic programming optimization model. The constraints of the model are the monthly freshwater inflows and the salinities. A quadratic criterion representing a weighted sum of squared deviations from target salinity and freshwater level is chosen as the objective function. The constrained optimal control algorithm employs a penalty function that uses a similar quadratic criterion as the objective function. This algorithm has performed efficiently for computing the optimal freshwater inflows into the Lavaca-Tres Palacios Estuary in Texas while satisfying the freshwater requirements for other components in the system. Copyright Kluwer Academic Publishers 1999

Suggested Citation

  • I. Tuncok & Larry Mays, 1999. "Feedback Method of Control for Estuary Management," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 13(5), pages 315-334, October.
    • Handle: RePEc:spr:waterr:v:13:y:1999:i:5:p:315-334
    DOI: 10.1023/A:1008173630360
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