Journal of Water Resources Planning and Management: Recent submissions
Now showing items 2581-2600 of 3360
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Sediment and Heavy Metal Accumulation in Dry Storm Water Detention Basin
(American Society of Civil Engineers, 1997)Amount, heavy metal content, organic content, and mass distribution of the bottom sediment in an 18 year old, single-purpose dry storm water detention basin were measured. The measured results were used to assess the effect ... -
Optimal Location of Control Valves in Pipe Networks by Genetic Algorithm
(American Society of Civil Engineers, 1997)This paper addresses the problem of appropriate location of control valves in a water supply pipe network and their settings via genetic algorithm (GA) to obtain maximum leakage reduction for given nodal demands and reservoir ... -
Evaluation of Water Losses in Distribution Networks
(American Society of Civil Engineers, 1997)A method to determine water losses from distribution networks, domestic connections, unauthorized connections, and domestic meters is presented. This method is based on stratified random sampling and leak flow gauging at ... -
Integrated Decision Support System for Tank Irrigation System Operation
(American Society of Civil Engineers, 1997)An integrated decision support system (DSS) that aids the operation of a tank (small-scale reservoir) irrigation system in south India is described. The DSS includes data subsystem, a model subsystem, a knowledge base, and ... -
Trihalomethane Precursor Model for Lake Youngs, Washington
(American Society of Civil Engineers, 1997)A mathematical model is developed to estimate trihalomethane formation potential (THMFP) in Lake Youngs, Wash. The model simulates both seasonal trends and spatial variations. The model kinetic framework includes total ... -
Optimal Monitoring Network and Ground-Water–Pollution Source Identification
(American Society of Civil Engineers, 1997)A methodology combining an optimal ground-water–quality monitoring network design and an optimal source-identification model is presented. In the first step of the three-step methodology, an embedded nonlinear optimization ... -
Comparison and Assessment of Zero-Rise Floodplain Ordinances
(American Society of Civil Engineers, 1997)This paper compares and evaluates the implications of some zero-risk regulations, particularly zero-rise floodplain ordinances. An ordinance for King County, Wash., is used to illustrate the challenges of implementing such ... -
Evaluation and Presentation of Dam Failure and Flood Risks
(American Society of Civil Engineers, 1997)Safety studies for existing dams have found that some do not satisfy current estimates of the probable maximum flood (PMF). An event or influence diagram can describe the random factors that contribute to major inflow ... -
Discussion and Closure: Integration of Water Resources Planning and Environmental Regulation
(American Society of Civil Engineers, 1997) -
Multiobjective Zone TP Reduction Analyses for an Off-Stream Reservoir
(American Society of Civil Engineers, 1997)Multiobjective linear programming (MOLP) models are developed to evaluate total phosphorus (TP) load reduction strategies for an off-stream reservoir. Cost, water quality, and equity are the three major objectives considered. ... -
Urbanization and Water Conservation in Las Vegas Valley, Nevada
(American Society of Civil Engineers, 1997)By the year 2010 southern Nevada, which is one of the fastest-growing urban centers in the West, will have committed nearly 100% of its water resources. Early in its history, Las Vegas developed a reputation for high per ... -
Flood Estimation for Ungauged Catchments Using the GIUH
(American Society of Civil Engineers, 1997)Traditional techniques for design flood estimation use historical rainfall-runoff data and unit hydrographs derived from them. Such procedures are questioned for their reliability due to the climatic and physical changes ... -
Changes in Heavy Rainfall in Midwestern United States
(American Society of Civil Engineers, 1997)Characteristics of heavy rainfall events are important in the design of water-handling structures, agriculture, weather modification, and in monitoring climate change. Traditionally it is assumed that the extreme rainfall ... -
Estimating Expected Annual Damage for Levee Retrofits
(American Society of Civil Engineers, 1997)The U.S. Army Corps of Engineers (USACE) has instituted a new analysis methodology for estimating the expected annual damage (EAD) and resulting economic benefits accruing to proposed flood damage-reduction projects. ... -
Sediment Yield Modeling by Grouped Response Units
(American Society of Civil Engineers, 1997)A geographic information system (GIS) is interfaced with a geomorphic-based hydrologic and sediment transport model. The modeling strategy makes use of the “grouped response unit” concept whereby land classes are identified ... -
Reliability Analysis in Support of Risk Assessment for Hydroelectric Generating Stations
(American Society of Civil Engineers, 1997)In work sponsored by the U.S. Army Corps of Engineers (USACE), Pacific Northwest Laboratory (PNL), Richland, Wash., has performed a frequency analysis regarding the nonroutine closure of water flow through the turbines of ... -
Chance Constrained Model for Storm-Water System Design and Rehabilitation
(American Society of Civil Engineers, 1997)A mixed integer chance constrained optimization model was developed to determine design and rehabilitation management strategies for storm-water drainage systems conditioned on the likelihood of exceeding the system's ... -
Planning Reservoir Operations with Imprecise Objectives
(American Society of Civil Engineers, 1997)Imprecise and noncommensurable objectives for reservoir operation are addressed through fuzzy dynamic programming using an implicit stochastic approach. Fuzzy membership functions for evaluating the achievement of a ... -
Water Network Rehabilitation with Structured Messy Genetic Algorithm
(American Society of Civil Engineers, 1997)The importance of water distribution network rehabilitation, replacement, and expansion is discussed. The problem of choosing the best possible set of network improvements to make with a limited budget is presented as a ... -
Variability in Perceived Satisfaction of Reservoir Management Objectives
(American Society of Civil Engineers, 1997)Fuzzy set theory provides a useful model to address imprecision in interpreting linguistically described objectives for reservoir management. Fuzzy membership functions can be used to represent degrees of objective ...