Stochastic Simulation and Optimization of Irrigation Canal Network Flows

by Timothy K. Gates, Colorado State Univ, Fort Collins, United States,
Abdelmohsen A. Alshaikh, Colorado State Univ, Fort Collins, United States,
Samir I. Ahmed, Colorado State Univ, Fort Collins, United States,

Document Type: Proceeding Paper

Part of: Irrigation and Drainage: Saving a Threatened Resource—In Search of Solutions


This paper investigates the effects of parametric and objective uncertainty on simulation and optimal hydraulic design of irrigation canal networks. A model of spatially-varied flow in a canal network delivering water to farm laterals and farm turnouts is used to study various system scenarios. A network of lined canals is analyzed to determine a stochastic optimal design of multiple diversion structures using a design criterion incorporating objectives of high technical performance and low cost. A network of earthen canals is analyzed to investigate the sensitivity of the uncertainty in predicted system performance to the nature and extent of parametric uncertainty.

Subject Headings: Flow simulation | Stochastic processes | Irrigation | Canals | Parameters (statistics) | Agriculture | Network analysis | Sensitivity analysis

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