Scenario-based water resources planning for utilities in the Lake Victoria region

Mehta, Vishal K.; Aslam, Omar; Dale, Larry; Miller, Norman L.; Purkey, David

doi:10.1016/j.pce.2013.02.007

Cited by 16 publications

(8 citation statements)

References 15 publications

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“…Some studies using WEAP have also assessed lake inflows, management and water allocation (e.g. Mehta et al 2013;Karlberg et al 2015) indicating that it is useful across a range of climatic, hydrological and socio-economic conditions.…”

Section: Lmsrb Weap Modelmentioning

confidence: 99%

Lake Malawi’s threshold behaviour: A stakeholder-informed model to simulate sensitivity to climate change

Bhave

Bulcock

Dessai

et al. 2020

Journal of Hydrology

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Section: Lmsrb Weap Modelmentioning

confidence: 99%

Lake Malawi’s threshold behaviour: A stakeholder-informed model to simulate sensitivity to climate change

Bhave

Bulcock

Dessai

et al. 2020

Journal of Hydrology

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“…These models optimize water allocation from various resources to meet a range of demands and what design and operating policy will best meet the identified objectives under a set of priorities and constraints [20]. Allocation models are used in several applications of water resources, such as development of a planning framework for short-term scenarios (land use change) and long-term scenarios (climate change) [22]; simulation crop evapotranspiration demand for agricultural land [23]; and modelling current and future water demands [24,25]. The main advantage of allocation models is their lower demand for computing resources and data.…”

Section: Introductionmentioning

confidence: 99%

Assessing Climate Change Impact on Water Resources under Water Demand Scenarios using SWAT-MODFLOW-WEAP

Abbas¹,

Xuan²,

Bailey³

2022

Preprint

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In this article, we present the use of the coupled land surface model and groundwater flow model SWAT-MODFLOW with the decision support tool WEAP (Water Evaluation and Planning software) to predict future surface water abstraction scenarios in a complex river basin, under conditions of climate change. The modeling framework is applied to the Dee River catchment in Wales, United Kingdom. Regarding hydrology, the coupled model improves overall water balance and low streamflow conditions, compared to a stand-alone SWAT model. The calibrated SWAT-MODFLOW is employed with high resolution climate model data from the UKCP18 project with future scenario of RCP85 from 2020 to 2040. Then, water supply results from SWAT-MODFLOW are fed into WEAP as input for the river reach in the downstream region of the river basin. This system is utilized to create various future scenarios of surface water abstraction of public water supply in the downstream region: maximum licensed withdraw, 50 % authorized abstractions, monthly time series with 1% increase of water use, and maximum water withdraw year based on historical records repeated every year with 1% increase of water use, to estimate the unmet demands and streamflow requirement. This modeling approach can be used in other river basins to manage scenarios of supply and demand.

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“…These phenomena often cause a reduction in environmental quality and endanger sustainable development (Sessa, 2007). Thus, effective water resource and farmland use planning with non-point source pollution mitigation is necessary for ensuring economic and environmental welfare of regional populations (Ray et al, 2012;Mehta et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Qin et al (2011) proposed a system dynamics and water environmental model to operate the integrated socio-economic and water management system in a rapidly urbanizing catchment. Mehta et al (2013) developed integrated water resources management models using the water evaluation and planning decision support system, for three towns in the Lake Victoria region. Zarghami and Hajykazemian (2013) proposed a new optimization algorithm by coupling the mutation process to the particle swarm optimization, which was successfully applied to the urban water resources management with a non-point source pollution problem for Tabriz, Iran.…”

Section: Introductionmentioning

confidence: 99%

A dual-inexact fuzzy stochastic model for water resources management and non-point source pollution mitigation under multiple uncertainties

Dong

Tan

Huang

et al. 2014

Hydrol. Earth Syst. Sci.

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Abstract. In this research, a dual-inexact fuzzy stochastic programming (DIFSP) method was developed for supporting the planning of water and farmland use management system considering the non-point source pollution mitigation under uncertainty. The random boundary interval (RBI) was incorporated into DIFSP through integrating fuzzy linear programming (FLP) and chance-constrained programming (CCP) approaches within an interval linear programming (ILP) framework. This developed method could effectively tackle the uncertainties expressed as intervals and fuzzy sets. Moreover, the lower and upper bounds of RBI are continuous random variables, and the correlation existing between the lower and upper bounds can be tackled in RBI through the joint probability distribution function. And thus the subjectivity of decision making is greatly reduced, enhancing the stability and robustness of obtained solutions. The proposed method was then applied to solve a water and farmland use planning model (WFUPM) with non-point source pollution mitigation. The generated results could provide decision makers with detailed water supply-demand schemes involving diversified water-related activities under preferred satisfaction degrees. These useful solutions could allow more in-depth analyses of the trade-offs between humans and environment, as well as those between system optimality and reliability. In addition, comparative analyses on the solutions obtained from ICCP (Interval chance-constraints programming) and DIFSP demonstrated the higher application of this developed approach for supporting the water and farmland use system planning.

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Scenario-based water resources planning for utilities in the Lake Victoria region

Cited by 16 publications

References 15 publications

Lake Malawi’s threshold behaviour: A stakeholder-informed model to simulate sensitivity to climate change

Lake Malawi’s threshold behaviour: A stakeholder-informed model to simulate sensitivity to climate change

Assessing Climate Change Impact on Water Resources under Water Demand Scenarios using SWAT-MODFLOW-WEAP

A dual-inexact fuzzy stochastic model for water resources management and non-point source pollution mitigation under multiple uncertainties

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