Canal Operations Planner. III: Minimizing Inequity with Delivery Performance Ratio Relaxation
Publication: Journal of Irrigation and Drainage Engineering
Volume 143, Issue 9
Abstract
For many large irrigation systems, distributing water equitably is a stated management objective. Canal operations plans specify which canal to operate at what discharge for each irrigation interval to achieve the stated objective. In this study, a function of the Gini index is incorporated in to an integer program that can develop a canal operations plan. In contrast with earlier canal operations planners that minimize inequity, the operations planner presented herein does not constrain the discharge in a canal to a binary integer. Rather, the user can define an allocation cost function that in turn defines the preferred operational range of discharge over which any canal should be operated for any interval. The operations planner can also be modified to permit spillages. The model is applied to a secondary canal in Pakistan, and the sensitivity of the results to operational range and permissible spillage are explored. An engineering application of the model is presented.
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Acknowledgments
The International Water Management Institute (IWMI) is in receipt of financial support from the Embassy of the Kingdom of Netherlands, Islamabad, Pakistan through Grant No. 22294 and the CGIAR Research Program on Water, Land and Ecosystems (WLE), which were used in part to support this study. The authors would like to acknowledge the Irrigation Department, Government of Punjab, Pakistan for providing data and access to the study area. The study design, data collection, analysis, and interpretation of the results are exclusively those of the authors.
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Journal of Irrigation and Drainage Engineering
Volume 143 • Issue 9 • September 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Nov 14, 2016
Accepted: Mar 29, 2017
Published online: Jul 5, 2017
Published in print: Sep 1, 2017
Discussion open until: Dec 5, 2017
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