Multi-Objective Optimization-Simulation for Reliability-Based Inter-Basin Water Allocation

S. Jamshid Mousavi, Nasrin Rafiee Anzab, Bentolhoda Asl-Rousta, Joong Hoon Kim

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


A simulation-optimization framework is presented for reliability-based optimal sizing, operation, and water allocation in the Bashar-to-Zohreh inter-basin water transfer project. The problem was formulated as a mixed integer nonlinear program (MINLP), for which two solution approaches were tested, including gradient-based nonlinear programming and simulation-optimization (SO). The SO framework linked the water evaluation and planning system (WEAP) simulation module, benefiting from fast, single-period linear programming, to the multi-objective particle swarm optimization (MOPSO) for multiperiod optimization. The objective functions were minimizing the sizes of the project’s infrastructures and maximizing the reliability of supplying water to agricultural lands. The combination of nonlinear programming and the branch-and-bound algorithm was not able to solve the resulting MINLP. The results of the MOPSO-WEAP framework indicated that the project can supply water for land development in the Dehdasht and Choram agricultural plains, located in the less developed Kohgiluye and Boyer-Ahmad Province of Iran at an acceptable reliability level. For example, for one of the Pareto solutions found corresponding to maximum land development (30,000 ha), an average volume of 237 million cubic meter (MCM) is transferred annually at a 73.2% reliability level with average sizes of water transfer and storage elements. Further, design-operation and hydropower scenarios were also evaluated, and the Pareto solutions were obtained.

Original languageEnglish
Pages (from-to)3445-3464
Number of pages20
JournalWater Resources Management
Issue number11
Publication statusPublished - 2017 Sept 1


  • Inter-basin water allocation
  • Multi-objective optimization
  • Reliability
  • Simulation-optimization

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Water Science and Technology


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