Frameworks for amending reservoir water management

Mower, Ethan; Miranda, Leandro E.

doi:10.1080/10402381.2013.829893

Cited by 11 publications

(2 citation statements)

References 4 publications

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“…SOP, as a standard rule curve (RC), determines how the operator should behave at any given state of a reservoir 15 , 16 . This rule curve is established as an attempt to balance various water demands including but not limited to flood control, hydropower, water supply, and recreation 17 . A SOP operating system attempts to release water to meet a water demand at the current time, with no regard to the future.…”

Section: Methodsmentioning

confidence: 99%

A robust multiple-objective decision-making paradigm based on the water–energy–food security nexus under changing climate uncertainties

Enayati

Bozorg‐Haddad

Fallah-Mehdipour³

et al. 2021

Sci Rep

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From the perspective of the water–energy–food (WEF) security nexus, sustainable water-related infrastructure may hinge on multi-dimensional decision-making, which is subject to some level of uncertainties imposed by internal or external sources such as climate change. It is important to note that the impact of this phenomenon is not solely limited to the changing behavior patterns of hydro-climatic variables since it can also affect the other pillars of the WEF nexus both directly and indirectly. Failing to address these issues can be costly, especially for those projects with long-lasting economic lifetimes such as hydropower systems. Ideally, a robust plan can tolerate these projected changes in climatic behavior and their associated impacts on other sectors, while maintaining an acceptable performance concerning environmental, socio-economic, and technical factors. This study, thus, aims to develop a robust multiple-objective decision-support framework to address these concerns. In principle, while this framework is sensitive to the uncertainties associated with the climate change projections, it can account for the intricacies that are commonly associated with the WEF security network. To demonstrate the applicability of this new framework, the Karkheh River basin in Iran was selected as a case study due to its critical role in ensuring water, energy, and food security of the region. In addition to the status quo, a series of climate change projections (i.e., RCP 2.6, RCP 4.5, and RCP 8.5) were integrated into the proposed decision support framework as well. Resultantly, the mega decision matrix for this problem was composed of 56 evaluation criteria and 27 feasible alternatives. A TOPSIS/Entropy method was used to select the most robust renovation plan for a hydropower system in the basin by creating a robust and objective weighting mechanism to quantify the role of each sector in the decision-making process. Accordingly, in this case, the energy, food, and environment sectors are objectively more involved in the decision-making process. The results revealed that the role of the social aspect is practically negligible. The results also unveiled that while increasing the power plant capacity or the plant factor would be, seemingly, in favor of the energy sector, if all relevant factors are to be considered, the overall performance of the system might resultantly become sub-optimal, jeopardizing the security of other aspects of the water–energy–food nexus.

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Section: Methodsmentioning

confidence: 99%

A robust multiple-objective decision-making paradigm based on the water–energy–food security nexus under changing climate uncertainties

Enayati

Bozorg‐Haddad

Fallah-Mehdipour³

et al. 2021

Sci Rep

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“…Water levels in flood control reservoirs are often drawn down during the late summer or early fall and the dewatered period until the first frost represents a window for vegetative growth in exposed substrates. Although water levels in flood control reservoirs are often managed by a guide curve (Mower & Miranda 2013), the hydrograph in any given year is partly influenced by the amount of precipitation in that year. Thus, the length of the dewatered period during the late summer/early fall may vary from year to year, resulting in differing amounts of vegetation and, therefore, spawning and nursery habitat, available the following year.…”

Section: Introductionmentioning

confidence: 99%

Size of age-0 crappies (Pomoxisspp.) relative to reservoir habitats and water levels

Kaczka

Miranda

2014

Journal of Freshwater Ecology

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Variable year-class strength is common in crappie Pomoxis spp. populations in many reservoirs, yet the mechanisms behind this variability are poorly understood. Sizedependent mortality of age-0 fishes has long been recognized in the population ecology literature; however, investigations about the effects of environmental factors on age-0 crappie size are lacking. The objective of this study was to determine if differences existed in total length of age-0 crappies between embayment and floodplain habitats in reservoirs, while accounting for potential confounding effects of water level and crappie species. To this end, we examined size of age-0 crappies in four flood-control reservoirs in northwest Mississippi over 4 years. Age-0 crappies inhabiting uplake floodplain habitats grew to a larger size than fish in downlake embayments, but this trend depended on species, length of time a reservoir was dewatered in the months preceding spawning, and reservoir water level in the months following spawning. The results from our study indicate that water-level management may focus not only on allowing access to quality nursery habitat, but that alternating water levels on a multiyear schedule could increase the quality of degraded littoral habitats.

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Optimizing Reservoir Water Management in a Changing Climate

Beça

Rodrigues

Nunes

et al. 2023

Water Resour Manage

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One of the UN agenda 2030 Sustainable Development goals is associated with water availability and its sustainable management. The present study intends to improve multipurpose reservoir management under climate change scenarios in water scarce regions such as the Mediterranean. Implemented methods include the sequential use of climate model results, hydrological modelling, and reservoir water balance simulation, which are used to estimate future water availability. This work focuses on developing an innovative reservoir management approach based on rule curves and a dynamic assessment of water needs, to improve the management of reservoirs that are dependent on a water transfer system. The proposed methods are implemented in two reservoirs located in a typical Mediterranean river basin and assessed under long-term climate change scenarios up to the year 2100. The results show that the proposed approach can ensure 100% of the urban water supply, improve the reliability of the irrigation supply from 75% to 86–91%, and provide 92–98% of the river ecological flow. It is also demonstrated that this management approach is beneficial, particularly in the case of multipurpose reservoirs in watersheds facing water scarcity risks, to optimize the balance between supply reliability, water transfer volumes, and costs.

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Frameworks for amending reservoir water management

Cited by 11 publications

References 4 publications

A robust multiple-objective decision-making paradigm based on the water–energy–food security nexus under changing climate uncertainties

A robust multiple-objective decision-making paradigm based on the water–energy–food security nexus under changing climate uncertainties

Size of age-0 crappies (Pomoxisspp.) relative to reservoir habitats and water levels

Optimizing Reservoir Water Management in a Changing Climate

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