Stochastic Optimal Control for Determination of Freshwater Inflows to Estuaries

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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 | Stochastic processes | Control systems | Inflow | Fresh water | Hydrologic models | Mathematical models | Salinity | Parameters (statistics) | North America | Texas | United States

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