Journal of Water Resources Planning and Management - Virginia : American Society of Civil Engineers, 2019 - [various pagings] : illustrations ; 28 cm. - Journal of Water Resources Planning and Management, Volume 145, Issue 2, Feb 2019 .

Includes bibliographical references.

Evaluating water assets using water efficiency framework for infrastructure intensive agency -- Clustering for real-time response to water distribution system contamination event intrusions -- Multiobjective optimal siting of algal biofuel production with municipal wastewater treatment in watersheds with nutrient trading markets -- Cyberattack detection using deep generative models with variational inference -- A novel leakage-detection method based on sensitivity matrix of pipe flow: case study of water distribution systems -- Optimal dynamic pump triggers for cost saving and robust water distribution system operations -- Minimizing urban floodpain management regrets under deeply uncertain climate change -- Reliability analysis of water distribution systems using physical probabilistic pipe failure method -- Benchmarking study of water distribution system solution methods -- Evaluating flood risk reduction by urban blue-green infrastructure using insurance data -- Role of heterogeneous behavioral factors in an agent-based model of crop choice and groundwater irrigation -- Framework to establish economic level of leakage for intermittent water supplies in arid environments -- Balancing hydropower development and ecological impacts in the mekong: tradeoffs for sambor mega dam.

[Article Title: Evaluating Water Assets Using Water Efficiency Framework for Infrastructure Intensive Agency / James Woodward, Katherine McMordie Stoughton, Loida Begley, and Brian Boyd, p. 1-8] Abstract: Water infrastructure-intensive organizations should incorporate sustainability principles when making decisions on infrastructure investments to ensure the long-term resilience of mission-critical equipment and components. A water efficiency evaluation framework to inform infrastructure investments is discussed and applied to three federal campuses. The methodology considered emphasizes the iterative process between data analysis and decision-making; evaluates cost-sharing solution alternatives when making final recommendations; considers both internal and external stakeholder perceptions of project outcomes and future planning; and makes explicit government and community preferences when evaluating projects. Case study findings underscore condition evaluations for infrastructure that are critical to setting a baseline for system performance and determining desired potential upgrades and sustainment strategies.;[Article Title: Clustering for Real-Time Response to Water Distribution System Contamination Event Intrusions / Ron Lifshitz and Avi Ostfeld, p. 1-9] Abstract: The 2013 Boston Marathon attack demonstrated the complexity of real-time response to such occurrences. The procedures used by the Federal Bureau of Investigation (FBI) at the Boston event to cluster and mitigate the event consequences inspired the development of a method for real-time response to contamination intrusion events in water distribution systems. Similar to the Boston attack, in the event of water contamination events, the shortage of real-time data, coupled with uncertainties in network topology, water consumption, and the event characteristics, set the ground for the need for a real-time response strategy.;[Article Title: Multiobjective Optimal Siting of Algal Biofuel Production with Municipal Wastewater Treatment in Watersheds with Nutrient Trading Markets / Jordan D. Kern, David E. Gorelick, Gregory W. Characklis, and Caroline M. Macklin, p. 1-13] Abstract: Using municipal wastewater effluent as a feedstock in algae cultivation is a promising approach for increasing the commercial viability of algal biofuel production. However, differences in site-specific characteristics at municipal wastewater treatment plants (WWTPs) could drive tradeoffs between maximizing the profitability of algae production and minimizing the cost of meeting water quality standards. A complicating factor is how water quality regulations are enforced, namely the potential presence of nutrient trading markets that would monetize removal of nutrients from wastewater effluent.;[Article Title: Cyberattack Detection Using Deep Generative Models with Variational Inference / Sarin E. Chandy, Amin Rasekh, Zachary A. Barker, and M. Ehsan Shafiee, p. 1-10] Abstract: Recent years have witnessed a rise in the frequency and intensity of cyberattacks targeted at critical infrastructure systems. This study designs a versatile, data-driven cyberattack detection platform for infrastructure systems cybersecurity, with a special demonstration in the water sector. A deep generative model with variational inference autonomously learns normal system behavior and detects attacks as they occur. The model can process the natural data in its raw form and automatically discover and learn its representations, hence augmenting system knowledge discovery and reducing the need for laborious human engineering and domain expertise.;[Article Title: A Novel Leakage-Detection Method Based on Sensitivity Matrix of Pipe Flow: Case Study of Water Distribution Systems / Zhiqiang Geng, Xuan Hu, Yongming Han and Yanhua Zhong, p. 1-12] Abstract: Urban water supply networks are important infrastructure to ensure the daily water consumption of urban residents and factories. However, the scope of leakage detection is large and inaccurate using the traditional leakage-detection method based on a sensitivity matrix of the nodal flow. Therefore, this paper proposes a novel leakage-detection method based on a sensitivity matrix of the pipe flow. The sensitivity matrices regarding the pipe flow to nodal pressure and pipe flow are deduced.;[Article Title: Optimal Dynamic Pump Triggers for Cost Saving and Robust Water Distribution System Operations / Mashor Housh, and Elad Salomons, p. 1-9] Abstract: In water distribution systems, pumps are used for supplying water from low points to elevated tanks that supply the network's demands. The pumps are operated in different ways that could be distinguished by the complexity of the required control system. Such control systems range from pressure and time-based controls, through simple fixed ON-OFF trigger levels (e.g., a bang-bang controller) to complex online pump optimization schemes based on water demand predictions [e.g., the model predictive controller (MPC)].;[Article Title: Minimizing Urban Floodplain Management Regrets under Deeply Uncertain Climate Change / Jory S. Hecht, and Paul H. Kirshen, p. 1-14] Abstract: Optimization modeling can reveal promising multiperiod schedules for adapting to deeply uncertain changes in flooding. We contribute a parsimonious optimization model (mixed integer program) that adjusts the efficacy of property-scale adaptation measures (first-floor elevation, wet floodproofing, permanent retreat, insurance) for different floodwall investments and insurance incentives. After minimizing expected flood-control and damage costs for individual scenarios, we identified adaptation portfolios that minimize underdesign and overdesign regrets under a deeply uncertain future. A near-optimal solutions algorithm also identified diverse solutions with different multistakeholder tradeoffs.;[Article Title: Reliability Analysis of Water Distribution Systems Using Physical Probabilistic Pipe Failure Method / Ram K. Mazumder, Abdullahi M. Salman, Yue Li, and Xiong Yu, p. 1-14] Abstract: Water distribution systems (WDSs) are among the most essential infrastructure systems for the sustenance of societies. Therefore, their continued reliability is of utmost importance. However, the reliability of WDSs decreases over time due to aging and deterioration of components, especially pipelines. Metallic pipes are subject to external and internal corrosion overtime, which can significantly affect their mechanical strength and hydraulic performance and, consequently, WDS reliability. Existing research on system reliability is typically based on statistical failure prediction of pipelines, which, however, typically assumes a constant failure rate, thereby ignoring time-dependent strength deterioration due to corrosion.;[Article Title: Benchmarking Study of Water Distribution System Solution Methods / Mengning Qiu, Sylvan Elhay, Angus R. Simpson, and Bradley Alexander, p. 1-13] Abstract: In recent years, a number of new water distribution system (WDS) solution methods have been developed. These methods have been aimed at improving the speed and reliability of WDS simulations. However, to date, these methods have not been benchmarked against each other in a reliable way. This research addresses this problem by using a newly developed software platform as a fair basis for a detailed comparison of the performance of these methods under different settings.;[Article Title: Evaluating Flood Risk Reduction by Urban Blue-Green Infrastructure Using Insurance Data / J. S├╢rensen and T. Emilsson, p. 1-11] Abstract: One of many important features of blue-green infrastructure is the ability to lower flood risks by detention of stormwater. This ability of flood risk reduction has for the first time been evaluated with empirical data in this study. In 2014, Malm├╢, Sweden, was hit with extreme precipitation corresponding to a return period of 50-200 years that led to severe pluvial flooding. This and other large events presented the opportunity to evaluate the efficiency of the 15-year-old stormwater system retrofit in the Augustenborg area (30 ha). Blue-green infrastructure is widely promoted for climate change adaptation, making this unique case important in the discussion of the capabilities of the related technical solutions.;[Article Title: Role of Heterogeneous Behavioral Factors in an Agent-Based Model of Crop Choice and Groundwater Irrigation / Yao Hu and Steve Beattie, p. 1-11] Abstract: Unsustainable groundwater use has led to the lowering of groundwater levels and the degradation of groundwater-dependent ecosystems worldwide. Integrated hydrologic-ecological-economic models have been developed to simulate and optimize the coupled human and groundwater systems, and address the issue of unsustainable groundwater use. However, a lack of understanding of the heterogeneity of groundwater users undermines the performance of the integrated models. In this paper, an agent-based model is developed using a two-stage optimization strategy with the goal of optimizing the decision making of heterogeneous farmers on crop choice and groundwater irrigation.;[Article Title: Framework to Establish Economic Level of Leakage for Intermittent Water Supplies in Arid Environments / Husnain Haider, Ibrahim Saleh Al-Salamah, Yousry Mahmoud Ghazaw, Ramadan Hassan Abdel-Maguid, Md. Shafiquzzaman and Abdul Razzaq Ghumman, p. 1-12] Abstract: Municipalities in the Kingdom of Saudi Arabia (KSA) are putting serious efforts into reducing the water losses to around 8% (i.e., national benchmark) of supplied water through active leakage control (ALC). In this research, a framework is conceptualized and developed to establish economic level of leakage (ELL), keeping in view the specific conditions of arid regions. In general, water loss control actions, including ALC, passive leakage control, pressure management, and infrastructure asset management, are performed by the municipalities up to the service connections until the cost of these actions becomes equal to the cost of the water lost.;[Article Title: Balancing Hydropower Development and Ecological Impacts in the Mekong: Tradeoffs for Sambor Mega Dam / Thomas B. Wild, Patrick M. Reed, Dist.M., Martin Mallen-Cooper, and Erland D. Jensen, p. 1-14] Abstract: Home to one of the world's most biodiverse and productive freshwater fisheries, the Mekong River basin provides food and economic security to some 60 million people. The extensive hydropower development planned for the river basin has the potential to degrade this ecosystem. The basin's potentially most impactful and downstream-most proposed main stem dam, the 18-km-long Sambor Dam is to be located just upstream of critical nursery and fishery habitats of the Tonle Sap Lake and the Mekong Delta and just downstream of major spawning areas. We explore the potential to modify Sambor's siting, design, and operation (SDO) to balance hydropower and ecological outcomes.

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