Optimal Allocation of Torogh Dam Water between Agricultural and Urban Sectors by an Interval Parameter Fuzzy Two Stages Stochastic Programming under Uncertainty

In this study, water allocation of Torogh dam between urban and agricultural sector is considered using an Interval Parameter Fuzzy Two-stage Programming (IFTSP). This model is a combination of fuzzy programming and interval parameter in two stage stochastic optimization framework. By the model it is possible to include pre-defined policy in optimization process and is able to offer different decision making alternatives in different conditions of water shortage. Needed data was collected from Mashhad Regional Water Organization for the year 1988-2006. Results showed that, urban sector benefit is more sensitive to varying water allocation than agricultural sector. Urban sector doesn’t encounter to water shortage in the high-flow year (16%). In normal-flow year (66%), agricultural sector face with water shortage and urban sector doesn’t. In addition, both urban and agricultural sectors confront water shortage in the low-flow year (18%). As a final point, if the director of dam does conservative, less water shortage will happen in upcoming.