Journal of Water Resources Planning and Management: Recent submissions
Now showing items 2001-2020 of 3360
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Pollution Source Identification of Accidental Contamination in Water Distribution Networks
(American Society of Civil Engineers, 2008)In the present technical note, a simple methodology for identifying the source location of an accidental contamination in a water distribution network is formulated. Starting from measured solute concentration data and ... -
Optimal Real-Time Operation of Urban Water Distribution Systems Using Reduced Models
(American Society of Civil Engineers, 2008)A method for near-optimal real-time on-line operation of urban water distribution system is presented and demonstrated. It uses a reduced model (RM) of the network which reproduces its performance over time with high ... -
Uncertainty Analysis for Watershed Modeling Using Generalized Likelihood Uncertainty Estimation with Multiple Calibration Measures
(American Society of Civil Engineers, 2008)This study applied a generalized likelihood uncertainty estimation (GLUE) approach to a Hydrological Simulation Program—Fortran (HSPF) model used for the simulation of hydrology and transport of fecal coliform bacteria at ... -
Improving Seawater Barrier Operation with Simulation Optimization in Southern California
(American Society of Civil Engineers, 2008)A calibrated simulation model is linked with two optimization models to investigate alternatives for enhancing seawater intrusion barrier operations for the Alamitos Barrier Project in Los Angeles. Two types of management ... -
Design Optimization of River Sampling Network Using Genetic Algorithms
(American Society of Civil Engineers, 2008)A methodology for determining the optimal spatial distribution of a river pollutant detection network using a geographic information system and genetic algorithms (GAs) is developed. Two case studies are investigated to ... -
Peak Daily Water Demand Forecast Modeling Using Artificial Neural Networks
(American Society of Civil Engineers, 2008)Peak daily water demand forecasts are required for the cost-effective and sustainable management and expansion of urban water supply infrastructure. This paper compares multiple linear regression, time series analysis, and ... -
Optimal Design of Water Networks Using a Modified Genetic Algorithm with Reduction in Search Space
(American Society of Civil Engineers, 2008)The efficient and effective search for the optimum design solution of a water distribution network using genetic algorithms (GAs) is governed by several factors such as representation scheme, population size, hydraulic ... -
Modeling the Efficiency and Power Characteristics of a Pump Group
(American Society of Civil Engineers, 2008)This note proposes models for efficiency and mechanical input power of a group of parallel identical pumps which can be fixed or variable speed. Two approaches are considered. In the first approach, the power characteristic ... -
Ant Colony Optimization for Least-Cost Design and Operation of Pumping Water Distribution Systems
(American Society of Civil Engineers, 2008)Developed and demonstrated in this paper is an ant colony methodology extending previous work on ant colony optimization for least-cost design of gravitational water distribution systems with a single loading case, to the ... -
Genetic Algorithm for Constrained Optimization Models and Its Application in Groundwater Resources Management
(American Society of Civil Engineers, 2008)Genetic algorithms (GAs) have been shown to be an efficient tool for the solution of unconstrained optimization problems. In their standard form, GA formulations are “blind” to the constraints of an optimization model when ... -
Optimization of Hedging Rules for Reservoir Operations
(American Society of Civil Engineers, 2008)Reservoir operations play an important role in water resources planning and management. During periods of drought, when inflows to the reservoir are low, it may not be possible to satisfy the target delivery (planned ... -
Combining Real-Time Bacteria Models and Uncertainty Analysis for Establishing Health Advisories for Recreational Waters
(American Society of Civil Engineers, 2008)Tools are needed to allow accurate and timely prediction of water quality so that recreational users can make informed decisions about the safety of water, and beach managers can post updated advisories. In this paper, we ... -
Incorporating Reliability into the Definition of the Margin of Safety in Total Maximum Daily Load Calculations
(American Society of Civil Engineers, 2008)In the calculation of the total maximum daily load (TMDL), the margin of safety (MOS) is an attempt to account for the uncertainties related to the conceptual representation of the system and the inherently random nature ... -
Spatial Knowledge-Based Decision Analysis System for Pond Site Assessment
(American Society of Civil Engineers, 2008)In the South Platte River Basin of Colorado, seasonally flooded wetland ponds are being developed for groundwater recharge and wildlife habitat. The selection and evaluation of pond sites is primarily done by local experts. ... -
Reliability-Based Simulation-Optimization Model for Multireservoir Hydropower Systems Operations: Khersan Experience
(American Society of Civil Engineers, 2008)A common method for assessing the energy potential of hydropower systems in Iran is the sequential streamflow routing with control on the energy-yield reliability. The method results in developing a reliability-based ... -
Urban Water Management in Ancient Greece: Legacies and Lessons
(American Society of Civil Engineers, 2008)The evolution of urban water management in ancient Greece, beginning in Crete during the early Minoan period, resulted in a variety of remarkable developments on both the mainland and islands of Greece. Important developments ... -
Optimal Siting of Regional Fecal Sludge Treatment Facilities: St. Elizabeth, Jamaica
(American Society of Civil Engineers, 2008)In the developing nation of Jamaica, 70% of the population depends upon on-site sanitation systems, which can provide an effective and low-cost option for rural wastewater treatment. However, there are serious environmental ... -
Discussion of “Mixed-Integer Approach for Obtaining Unique Solutions in Source Inversion of Water Networks” by Carl D. Laird, Lorenz T. Biegler, and Bart G. van Bloemen Waanders
(American Society of Civil Engineers, 2007)