Journal of Water Resources Planning and Management: Recent submissions
Now showing items 1901-1920 of 3360
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Assessment of the Replicate Compression Heuristic to Improve Efficiency of Urban Water Supply Headworks Optimization
(American Society of Civil Engineers, 2009)Urban water supply headworks systems are usually designed to provide high security against drought. The best way to evaluate this security is to use Monte Carlo simulation which is computationally expensive. The advent of ... -
Evaluating the Potential Impact of Reservoir Operation on Fish Communities
(American Society of Civil Engineers, 2009)A developing understanding of instream flow needs now supports maintenance of ecological flow regimes rather than a fixed, time-invariant regulatory minimum flow. This shift is reflected in management of streamflow change ... -
Reservoir Operation and Water Allocation to Mitigate Drought Effects in Crops: A Multilevel Optimization Using the Drought Frequency Index
(American Society of Civil Engineers, 2009)The drought frequency index (DFI) is employed in this study as a drought indicator and as a trigger mechanism for multireservoir system operations during drought. The DFI characterizes droughts according to their duration ... -
Prioritizing Pipe Replacement: From Multiobjective Genetic Algorithms to Operational Decision Support
(American Society of Civil Engineers, 2009)Deterioration of water distribution systems and the optimal allocation of limited funds for their rehabilitation represent crucial challenges for water utility managers. Decision makers should be provided with a set of ... -
Optimized Flood Control in the Columbia River Basin for a Global Warming Scenario
(American Society of Civil Engineers, 2009)Anticipated future temperature changes in the mountainous U.S. Pacific Northwest will cause reduced spring snow pack, earlier melt, earlier spring peak flow and lower summer flow in transient rain-snow and snowmelt dominant ... -
Data Mining to Identify Contaminant Event Locations in Water Distribution Systems
(American Society of Civil Engineers, 2009)To respond to growing concerns related to potential contamination ingress via backflow and/or terrorist threats to drinking water, a data mining approach is developed. Use of this data mining approach, in conjunction with ... -
Multiobjective Approach for Pipe Replacement Based on Bayesian Inference of Break Model Parameters
(American Society of Civil Engineers, 2009)A planning strategy is presented that aims at establishing the optimal replacement schedule for a water distribution network. Two performance indicators are defined. The first accounts for structural state (total cost ... -
Improved Representation of Water Age in Distribution Networks to Inform Water Quality
(American Society of Civil Engineers, 2009)Mathematical simulation models that are used to provide information about the age of water in potable water distribution networks usually represent the age of water as the flow weighted average age value of the merged flows ... -
Optimization of Reservoir Hedging Rules Using Multiobjective Genetic Algorithm
(American Society of Civil Engineers, 2009)Water rationing in reservoir operation is essential for mitigating the damage of water deficits from prolonged and severe droughts. This problem is addressed in this study using hedging rules characterized by three hedging ... -
Development of a Probabilistic Timing Model for the Ingestion of Tap Water
(American Society of Civil Engineers, 2009)A contamination event in a water distribution system can result in adverse health impacts to individuals consuming contaminated water from the system. Assessing impacts to such consumers requires accounting for the timing ... -
Comparison of Targeted Replacement and Vegetative Filter Strips for Sediment Control and Cost Effectiveness
(American Society of Civil Engineers, 2009)Two erosion control methods are compared for cost effectiveness in reducing sediment loading into the streams; targeted replacement of agricultural crops and placement of vegetative filter strips (VFS) along field drains. ... -
Storage-Yield Evaluation and Operation of Mula Reservoir, India
(American Society of Civil Engineers, 2009)A set of nested models was applied to provide useful strategy to evaluate the storage, water yield and the operational performance of the multipurpose Mula reservoir in India. Insufficient yield from the reservoir for the ... -
Reexamination of Critical Period for Reservoir Design and Operation
(American Society of Civil Engineers, 2009)Reservoir operating rules are often based on deterministic models using critical period (CP) analysis, which results in very conservative decisions. CP is defined as the historical hydrologic period that includes the lowest ... -
Irrigation Scheduling—Role of Weather Forecasting and Farmers’ Behavior
(American Society of Civil Engineers, 2009)The purpose of irrigation scheduling is to coordinate the timing and amount of water used to irrigate crops in a way that maximizes profits. Using a case study on corn production in the Havana Lowlands region, Illinois, ... -
Exploring the Implications of Climate Change on Water Resources through Participatory Modeling: Case Study of the Okanagan Basin, British Columbia
(American Society of Civil Engineers, 2009)Few regions in North America have directly incorporated the implications of climate change in water resources planning initiatives because the relevant information is not readily accessible, and methods for adjusting policy ... -
Multiobjective Optimization of Rehabilitation and Leakage Detection Scheduling in Water Distribution Systems
(American Society of Civil Engineers, 2009)This paper presents a procedure for optimal medium-term scheduling (e.g., over a time window of 5 years) of rehabilitation and leakage detection interventions in a water distribution system given predetermined budget ... -
Optimal Water Quality Management Strategies for Urban Watersheds Using Macrolevel Simulation and Optimization Models
(American Society of Civil Engineers, 2009)This paper describes the development of an optimal water quality tool for managing wet weather discharges that uses a macrolevel simulation model (i.e., the Streeter-Phelps equation) linked with a highly efficient optimization ... -
Designing Contamination Warning Systems for Municipal Water Networks Using Imperfect Sensors
(American Society of Civil Engineers, 2009)We consider the problem of designing a contaminant warning system for a municipal water distribution network that uses imperfect sensors, which can generate false-positive and false-negative detections. Although sensor ... -
Climate Driven Water Resources Model of the Sacramento Basin, California
(American Society of Civil Engineers, 2009)A climate-driven water resource model of California’s Sacramento River Basin (SACB) is presented, based on the Water Evaluation and Planning model Version 21 (WEAP21). The model’s configuration, calibration, testing, and ... -
Evolutionary Computation-Based Methods for Characterizing Contaminant Sources in a Water Distribution System
(American Society of Civil Engineers, 2009)The area of systematic identification of contamination sources in water distribution systems is in its infancy and is rapidly growing. The real water distribution network problem poses many challenges that current methods ...