Drought Management Planning with Economic and Risk Factors

Westphal, Kirk; Laramie, Richard L.; Borgatti, Douglas; Stoops, Robert

doi:10.1061/(asce)0733-9496(2007)133:4(351)

Cited by 18 publications

(6 citation statements)

References 14 publications

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“…In this study, system operations were modeled in R (monthly time step) [Whateley et al, 2014] based on the SWSC's drought management plan. More information on the system and simulation model can be found in Whateley et al [2014] and Westphal et al [2007].…”

Section: Springfield Water Supply Systemmentioning

confidence: 99%

Assessing the relative effects of emissions, climate means, and variability on large water supply systems

Whateley

Brown

2016

Geophysical Research Letters

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Some of the greatest societal risks of climate change rise from the potential impacts to water supply. Yet prescribing adaptation policies in the near term is made difficult by the uncertainty in climate projections at relevant spatial scales and the conflating effects of uncertainties in emissions, model error, and internal variability. In this work, a new framework is implemented to explore the vulnerability of reservoir systems in the northeastern U.S. to climate change and attribute vulnerabilities to changes in mean climate, natural variability, or emission scenarios. Analysis of variance is used to explore the contributions of uncertainties to system performance. Diagnosing the relative risks to water supply will help water resource engineers better adapt to uncertain future conditions. The results indicate that uncertainty in water supply system performance can be attributed mostly to uncertainty in internal variability over policy‐relevant planning horizons, and thus, adaptation efforts should focus on managing variability.

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Section: Springfield Water Supply Systemmentioning

confidence: 99%

Assessing the relative effects of emissions, climate means, and variability on large water supply systems

Whateley

Brown

2016

Geophysical Research Letters

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“…Policy and public debates about alternatives rarely go beyond intuitive assessments (see, for example, Reference 130). Scientific methods of assessing alternatives include benefit-cost, cost-effectiveness, and multicriteria frameworks (131,132) and scenario-based risk models dealing with climatic uncertainty (42,81,133). Integrated models that couple climate change with socioeconomic scenarios and risk-based assessments of alternative water management options are needed.…”

Section: Water Supply and Conservationmentioning

confidence: 99%

Droughts

Kallis¹

2008

Environment and Resources

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This chapter provides an interdisciplinary review of the drought literature. Droughts are widely perceived as hydroclimatic hazards. In reality droughts are socioenvironmental phenomena, produced by admixtures of climatic, hydrological, environmental, socioeconomic, and cultural forces. The complexity and context specificity of drought confound severity and impact assessments. Interdisciplinary analyses of drought events and collective assessments with the participation of scientists, policy makers, stakeholders, and the public provide promising new ways of producing information for understanding and managing droughts. Global warming is likely to exacerbate droughts in many semiarid, snowfed, and coastal basins. Research on historical and paleoclimates warns about the prospect of decadal or centennial megadroughts. Enhancing adaptive capacity becomes essential in the face of such uncertain future extremes. But policies remain locked in supply-side food and water technologies. Policies for the support of impoverished, vulnerable groups, investments in water conservation and appropriate, low-scale technologies can reduce drought vulnerability but face political-economic barriers.

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“…Brown et al (2019) analyzed water supply shortages under climate change in the watersheds of the United States and also evaluated the impacts of different adaption strategies for mitigating future water supply shortages. Moreover, a number of modeling frameworks have been developed to determine drought management strategies which can achieve highest water supply reliability during droughts while minimizing planning and operational costs (Borgomeo et al, 2014; Cai et al, 2015; Herman et al, 2014; Mortazavi et al, 2012; Mortazavi‐Naeini et al, 2015; Ward et al, 2006; Westphal et al, 2007; Zeff et al, 2014). In those proposed frameworks, numerous decision variables related to operation and expansion of water supply systems are optimized to determine the ideal combination of short‐term and long‐term drought management strategies.…”

Section: Introductionmentioning

confidence: 99%

Impact of Droughts on Water Supply in U.S. Watersheds: The Role of Renewable Surface and Groundwater Resources

Apurv

Cai

2020

Earth's Future

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We use a simplified water supply system model based on the water availability assessment via the Variable Infiltration Capacity (VIC) hydrologic model to analyze water supply droughts (WSDs), which are periods with deficient water supply. The model is applied to 27 representative watersheds of the contiguous U.S. to explore how different management strategies can be more effective in mitigating WSDs in watersheds with different drought propagation mechanisms. We find that water supply deficits during droughts (WSDDs) are generally the highest in the Great Plains watersheds, followed by the western U.S. watersheds, and lowest in the eastern U.S. watersheds. We show that different measures can be adopted to mitigate WSDs in different regions. Specifically, in the western U.S. watersheds, the conjunctive use of surface and groundwater can reduce WSDD, that is, increasing surface water utilization and using groundwater recharged through winter precipitation to supplement surface water supply during droughts. In the Great Plains region, water demands need to be brought down to sustainable levels; meanwhile switching from groundwater to surface water supply can significantly reduce WSDD as the alluvial aquifers in this region provide a stable baseflow, which can act as a steady source of water supply during droughts. In the eastern U.S. watersheds, the depletion of limited storage capacity during droughts can lead to WSDD for short periods of time, which highlights the need for expansion of storage capacity in this region.

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Drought Management Planning with Economic and Risk Factors

Cited by 18 publications

References 14 publications

Assessing the relative effects of emissions, climate means, and variability on large water supply systems

Assessing the relative effects of emissions, climate means, and variability on large water supply systems

Droughts

Impact of Droughts on Water Supply in U.S. Watersheds: The Role of Renewable Surface and Groundwater Resources

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