Optimum socio-environmental flows approach for reservoir operation strategy using many-objectives evolutionary optimization algorithm

Water resource system complexity, high-dimension modelling difficulty and computational efficiency challenges often limit decision makers' strategies to combine environmental flow objectives (e.g. water quality, ecosystem) with social flow objectives (e.g. hydropower, water supply and agricultu...

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Bibliographic Details
Published in:The Science of the total environment Vol. 651; no. Pt 2; pp. 1877 - 1891
Main Authors: Al-Jawad, Jafar Y., Alsaffar, Hassan M., Bertram, Douglas, Kalin, Robert M.
Format: Journal Article
Language:English
Published: Netherlands Elsevier B.V 15.02.2019
Subjects:
algorithms
Auto-adaptive constraints
basins
Borg MOEA
decision making
decision support systems
Diyala River basin
ecosystems
Environmental flows regime
financial economics
income
Iraq
issues and policy
land use
water power
water quality
Water resources management
water supply
watersheds
ε-DSEA
Iraq
ε-DSEA
Water resources management
Borg MOEA
Auto-adaptive constraints
Diyala River basin
Environmental flows regime
ISSN:0048-9697, 1879-1026, 1879-1026
Online Access:Get full text
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Summary:Water resource system complexity, high-dimension modelling difficulty and computational efficiency challenges often limit decision makers' strategies to combine environmental flow objectives (e.g. water quality, ecosystem) with social flow objectives (e.g. hydropower, water supply and agriculture). Hence, a novel Optimum Social-Environmental Flows (OSEF) with Auto-Adaptive Constraints (AAC) approach introduced as a river basin management decision support tool. The OSEF-AAC approach integrates Socio-Environmental (SE) objectives with convergence booster support to soften any computational challenges. Nine SE objectives and 396 decision variables modelled for Iraq's Diyala river basin. The approach's effectiveness evaluated using two non-environmental models and two inflows' scenarios. The advantage of OSEF-AAC approved, and other decision support alternatives highlighted that could enhance river basin SE sectors' revenues, as river basin economic benefits will improve as well. However, advanced land use and water exploitation policy would need adoption to secure the basin's SE sectors. [Display omitted] •Decision makers rarely considered environmental flows regime in their strategy•Novel optimum socio-environmental flows (OSEF-AAC) approach was developed•The approach evaluated by a case study using nine objectives with two optimizers•The robustness of OSEF-AAC is endorsed by improving river basin environments and revenues
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ISSN:0048-9697
1879-1026
1879-1026
DOI:10.1016/j.scitotenv.2018.10.063