Optimization on Water Resource System Operation Policy during Drought

Fang, Hongyuan; Cheng, Yi; Yan, Songkai

doi:10.4236/jwarp.2011.32017

Cited by 4 publications

(4 citation statements)

References 12 publications

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“…Reliability (α) is defined as the probability that the system will properly provide the water supply during time period t, and it can be expressed as shown in Equation (7). Risk (β) is defined as the probability that the water supply will not satisfy water demand in time period t, and it can be expressed as shown in Equation (8). The criteria used in the reliability analysis for the design and operation of the water resource system are divided into frequency-based reliability values, which show the proportion of the total period during which water shortages occurred, and quantitative reliability levels, which show the proportion of water shortages in relation to the total water supply; the relevant equations are as follows:…”

Section: Dam-weir Operationmentioning

confidence: 99%

“…Minville et al [6] examined irrigation, flood and water generation capacity by tracking reservoirs in order to brace for uncertain future climates in the Peribonka River Basin using the HEC-ResSim reservoir modeling software [7]. Fang et al [8] studied the optimization of dam operations during drought by classifying climate conditions, and irrigation and flooding seasons, thereby controlling water supply volume and minimizing the water deficit in the Huanghe-Huaige water system. Divakar et al [9] studied the total benefit functions for agriculture, hydropower, domestic and industrial sectors under a case study of allocation practices.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Coordinated Operation of Weirs and Reservoirs on the Water Quality of the Geum River

Ahn

Jung

Shin

2017

Water

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Multifunctional weirs can be used to maintain water supply during dry seasons and to improve downstream water quality during drought conditions through discharge based on retained flux. Sixteen multifunctional weirs were recently constructed in four river systems as part of the Four Rivers Restoration Project. In this study, three multifunctional weirs in the Geum River Basin were investigated to analyze the environmental effects of multifunctional weir operation on downstream flow. To determine seasonal vulnerability to drought, the basin was evaluated using the Palmer Drought Severity Index (PDSI). Furthermore, the downstream flow regime and the effect on water quality improvement of a coordinated dam-multifunctional weir operation controlled by: (a) a rainfall-runoff model; (b) a reservoir optimization model; and (c) a water quality model, were examined. A runoff estimate at each major location in the Geum River Basin was performed using the water quality model, and examined variation in downstream water quality depending on the operational scenario of each irrigation facility such as dams and weirs. Although the water quality was improved by the coordinated operation of the dams and weirs, when the discharged water quality is poor, the downstream water quality is not improved. Therefore, it is necessary to first improve the discharged water quality on the lower Geum River. Improvement of the water quality of main stream in the Geum River is important, but water quality from tributaries should also be improved. By applying the estimated runoff data to the reservoir optimization model, these scenarios will be utilized as basic parameters for assessing the optimal operation of the river.

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Section: Dam-weir Operationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Coordinated Operation of Weirs and Reservoirs on the Water Quality of the Geum River

Ahn

Jung

Shin

2017

Water

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“…The integration of an economic trading model with a hydrologic water allocation model is discussed [12]. A multi-objective mixed integer linear programming model is set up to obtain the optimal operation policy of multi-reservoir water supply system during drought [13]. An overview of the policy context for water marketing and the related practice of groundwater banking are provided and trends summarized in both areas [14].…”

Section: Introductionmentioning

confidence: 99%

Theory of an Optimal Dynamical Water Resource Management Policy

Ahmed¹,

Nawaz²

2023

JWARP

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Water markets even though not perfect and require a lot of effort to establish are considered as a robust tool to address water management issues around the world. However, the existing literature does not provide an optimal water resource management policy. To create a perfect water market, the government needs to identify the potential number of suppliers/producers and consumers of water against various extraction/supply/production rates of water, i.e., to identify a supply and a demand curve for number of suppliers/producers of water against each production rate in economy. This article presents a theory which is practically applicable for an optimal dynamical water resource management policy (JEL H20, H23, H27).

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“…Fang et al [15] studied the optimization of dam operations during drought by classifying climate conditions and irrigation and flooding seasons, thereby controlling the water supply volume and minimizing the water deficit in the Huanghe-Huaige water system (China). Divakar et al [16] studied the total benefit functions for agriculture, hydropower, and the domestic and industrial sectors under a case study for allocation practices in Thailand.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Coordinated Operation of Reservoirs and Weirs for Sustainable Water Management in the Geum River Basin under Climate Change

Ahn

Yang

Jung

et al. 2018

Water

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Abstract:In this study, an integrated system for the comprehensive analysis of climate change, runoff, reservoir operation, and power generation was developed. In order to apply reliable climate change scenarios to the Geum River Basin, we applied representative concentration pathway (RCP) scenarios adopted by the Intergovernmental Panel on Climate Change for its fifth assessment report in 2014 to the streamflow synthesis and reservoir regulation model at a regional scale with 1-km spatial resolution to analyze future runoff. This analyzed future runoff was applied to the Hydrologic Engineering Center-Reservoir System Simulation to analyze the hydrological behavior caused by reservoir operation through flow duration analysis at each of several important points. The objective was to provide initial data suitable for future basin management through an examination of power generation. Applying the RCP 4.5 and 8.5 scenarios showed that runoff would increase continuously compared with the past. However, in the RCP 8.5 scenario (where carbon reductions have not been achieved), runoff from flooding would be reduced considerably. It was found that power generation would be reduced compared with the past under the climate change scenarios, but additional power generation could be realized with the coordinated operation of reservoirs and weirs. These results suggest that, despite climate change, the risk to power generation could be reduced with the coordinated operation of reservoirs and weirs.

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Optimization on Water Resource System Operation Policy during Drought

Cited by 4 publications

References 12 publications

Effects of Coordinated Operation of Weirs and Reservoirs on the Water Quality of the Geum River

Effects of Coordinated Operation of Weirs and Reservoirs on the Water Quality of the Geum River

Theory of an Optimal Dynamical Water Resource Management Policy

Assessing the Coordinated Operation of Reservoirs and Weirs for Sustainable Water Management in the Geum River Basin under Climate Change

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