Comparative Analysis of Water Management Strategies at Oued Makhazine Dam: Assessing the Performance of Reinforcement Learning and Traditional Optimization Methods

Chakir Achahboun (), Mohamed Chikhaoui (), Mustapha Naimi () and Mostafa Bellafkih ()
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Chakir Achahboun: Hassan II Institute of Agronomy and Veterinary Medicine
Mohamed Chikhaoui: Hassan II Institute of Agronomy and Veterinary Medicine
Mustapha Naimi: Hassan II Institute of Agronomy and Veterinary Medicine
Mostafa Bellafkih: National Institute of Posts and Telecommunications (INPT)

SN Operations Research Forum, 2025, vol. 6, issue 4, 1-45

Abstract: Abstract Adaptive reservoir management is essential for semi-arid regions facing heightened climate variability and intensifying competition among water use sectors. Traditional rule-based and optimization-based approaches frequently lack the responsiveness needed to address hydrological extremes and shifting operational priorities. To address this gap, we present a systematic comparison of classical and artificial intelligence-based reservoir operation models under diverse hydrological scenarios. Four strategies—Linear Programming (LP), Stochastic Optimization (SO), Reinforcement Learning (RL), and Hierarchical Reinforcement Learning (HRL)—were evaluated for the Oued Makhazine Dam in northern Morocco using a combination of historical records and synthetically generated inflow and demands sequences simulating dry, historical, and rainy regimes. Model performance was assessed using comprehensive criteria, including allocation efficiency, sectoral demand satisfaction, safety margin, adaptability, reliability index, and the frequency of reservoir volume extremes. Results indicate that the SO model demonstrated superior overall performance under stable conditions, achieving the highest efficiency (72.13 ± 37.70%), irrigation satisfaction (92.43 ± 10.59%), drinking water satisfaction (99.63 ± 0.51%), and safety margin (55.84 ± 37.23%). While SO maintained a high average buffer, it also frequently reached maximum capacity during rainy periods, increasing the risk of overflow. HRL excelled in adaptability (82.09 ± 12.51%) and consistently ensured drinking water supply (98.02 ± 2.80%). RL showed high adaptability (82.30 ± 11.89%), indicating strong responsiveness to fluctuating demands. However, this flexibility came at the cost of greater reservoir volume variability (105.38 ± 56.43) and inconsistent drinking water satisfaction (84.67 ± 26.22%), particularly under dry conditions. LP achieved high satisfaction rates for drinking (96.97 ± 4.29%) and irrigation (77.50 ± 29.98%) but was less adaptable (71.15 ± 0.64%), limiting its performance under variable regimes.These findings underscore the advantages of SO under predictable conditions and highlight the adaptive potential of RL-based approaches for dynamic water management. The study contributes to the evaluation of reservoir operation strategies under climate uncertainty and supports the design of adaptive methodologies for sustainable water resource management in semi-arid environments.

Keywords: Water resource management; Oued Makhazine Dam; Reinforcement Learning; Stochastic Optimization; Adaptability; Climate change adaptation (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s43069-025-00512-2

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