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Stochastic Optimal Control for Determination of Freshwater Inflows to Estuaries

by Bing Zhao, Arizona State Univ, Tempe, AZ, USA,
Larry W. Mays, (M.ASCE), Arizona State Univ, Tempe, AZ, USA,



Document Type: Proceeding Paper

Part of: Water Policy and Management: Solving the Problems

Abstract:

The objective of the research is to develop estuarine system management models based upon discrete-time stochastic optimal control. An analytical feedback control law is given. The control law enables the decision-makers to determine the optimal upstream reservoir releases during a month after the salinity and nutrients levels in the estuary are observed at the beginning of the month. Two types of estuarine systems are considered. One is a lumped-parameter system. Another is a distributed-parameter system described by a two-dimensional hydrodynamic and salinity transport finite difference numerical model (HYD-SAL). The proposed estuarine system management models are applied to the Lavaca-Tres-Palacios Estuary in Texas.

Subject Headings: Estuaries | Control systems | Mathematical models | Systems management | Stochastic processes | Salinity | Hydrologic models | Texas | United States

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