A Hybrid Dynamic Dual Interval Programming for Irrigation Water Allocation under Uncertainty |
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Authors: | Lei Jin Guohe Huang Yurui Fan Xianghui Nie Guanhui Cheng |
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Affiliation: | (1) University of Regina, Regina, Canada;(2) Xiamen University of Technology, Xiamen, People’s Republic of China;(3) Faculty of Engineering and Applied Science University of Regina, Regina, SK, S4S 0A2, Canada; |
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Abstract: | Along with the economic development in Canada, the shortage of irrigation water has become a serious concern (Bouwer 1993; Hennessy 1993). In this study, a model of Dynamic Dual Interval Programming (DDIP) is developed and applied to the irrigation water allocation
systems with uncertainty. DDIP method improves the existing dynamics interval programming by explicitly addressing the system
uncertainties with a dual interval that had higher system reliability. The solution of DDIP is computationally effective,
and its decision variables are incorporated into the solutions for final decision. In order to obtain the optimal allocation
schemes in a dynamic process, the developed DDIP was applied to an irrigation water system. The results from this case study
revealed that optimal solution can be obtained through the DDIP approach from the agriculture water management activities
for feasible decisions. These decisions reflect the high uncertainty of the information in the boundaries of dual intervals.
The solution presents a maximum benefit under limited yearly uncertain natural resources. Furthermore, the information obtained
though this model may help the authority to make optimal decisions and to reduce the risk for uncertain situations. |
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