Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 2401-2420 of 3826
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Closure to “Equivalent Friction Factor Method for Hydraulic Calculation in Irrigation Laterals” by Pedro Vallesquino and Pedro L. Luque-Escamilla
(American Society of Civil Engineers, 2004) -
Physically Based Modeling of Interacting Surface–Subsurface Flow During Furrow Irrigation Advance
(American Society of Civil Engineers, 2004)Surface–subsurface flow during furrow irrigation is analyzed employing both a laboratory experiment and a surface–subsurface flow model. The proposed model overcomes the restrictions of traditional furrow irrigation models ... -
Discussion of “Equivalent Friction Factor Method for Hydraulic Calculation in Irrigation Laterals” by Pedro Vallesquino and Pedro L. Luque-Escamilla
(American Society of Civil Engineers, 2004) -
Discussion of “Determining Minor Head Losses in Drip Irrigation Laterals. II: Experimental Study and Validation” by Luis Juana, Leonor Rodrı´guez-Sinobas, and Alberto Losada
(American Society of Civil Engineers, 2004) -
Review of <i>Environmental Impacts for Water Resources Planning</i>
(American Society of Civil Engineers, 2004) -
Optimal Design of Composite Channels Using Genetic Algorithm
(American Society of Civil Engineers, 2004)In the past, studies involving optimal design of composite channels have employed Horton’s equivalent roughness coefficient, which uses a lumped approach in assuming constant velocity across a composite channel cross ... -
Comparison of Genetic Algorithm and Linear Programming Approaches for Lateral Canal Scheduling
(American Society of Civil Engineers, 2004)The paper discusses a genetic algorithm (GA) developed for solution of two lateral canal scheduling problems presented recently in the literature. The GA formulations use very similar objective functions for both problems. ... -
Experimental Analysis of Local Pressure Losses for Microirrigation Laterals
(American Society of Civil Engineers, 2004)The accurate design of drip irrigation laterals needs to consider the variation of hydraulic head due to pipe elevation changes, head losses along the lines, and also, at a given operating pressure, emitter discharge ... -
Generalized Head-Discharge Equation for Flow over Sharp-Crested Inclined Inverted V-Notch Weir
(American Society of Civil Engineers, 2004)The sharp-crested weir is the most commonly used device in channels for flow measurement and flow regulation due to its simplicity. Attempts have been made to study in detail the flow over different shapes of normal ... -
Evapotranspiration of Full-, Deficit-Irrigated, and Dryland Cotton on the Northern Texas High Plains
(American Society of Civil Engineers, 2004)Cotton ( -
Uniformity Distribution and its Economic Effect on Irrigation Management in Semiarid Zones
(American Society of Civil Engineers, 2004)The management of water resources in irrigation is a fundamental aspect for their sustainability. For correct management, several tools and systems for decision making are necessary. Among the large number of factors that ... -
Storm Flow from First-Flush Precipitation in Stormwater Design
(American Society of Civil Engineers, 2004)Regulations for mitigating nonpoint source pollution from urban areas often include a requirement for treatment of a first-flush depth of stormwater. When the stormwater treatment technology requires specification of a ... -
Modeling Two-Dimensional Infiltration from Irrigation Furrows
(American Society of Civil Engineers, 2004)Numerical simulation of the two-dimensional (2D) infiltration process during furrow irrigation requires considerable computational effort, which can be reduced by analytical modeling. This paper deals with the further ... -
Comparison of HYDRUS-2D Simulations of Drip Irrigation with Experimental Observations
(American Society of Civil Engineers, 2004)Realizing the full potential of drip irrigation technology requires optimizing the operational parameters that are available to irrigators, such as the frequency, rate, and duration of water application and the placement ... -
Application of Data Envelopment Analysis to Studies of Irrigation Efficiency in Andalusia
(American Society of Civil Engineers, 2004)The semiarid climate of the majority of agricultural districts in the Mediterranean means that water is a key factor limiting production. It is therefore necessary to distribute water in the most efficient way possible and ... -
Weighted Average Method for Land Grading Design
(American Society of Civil Engineers, 2004)Based on the theory of the least squares and the statistical properties of the best statistic with an unbiased estimate and minimum variance, a new method for land grading design is presented. Although it is based on ... -
Performance of Model Predictive Control on ASCE Test Canal 1
(American Society of Civil Engineers, 2004)Model predictive control (MPC) is a popular control algorithm in the process control industry that is particularly suited to the automatic control of irrigation water delivery systems because it explicitly accounts for the ... -
Cost-Effective Temporary Microirrigation System for Grass Establishment on Environmentally Sensitive Steep Slopes
(American Society of Civil Engineers, 2004)An advanced technology cost-effective drip irrigation system design and setup on environmentally sensitive elevated steep slopes (batters) of a coal train derailment site in Central Queensland, Australia, are presented. ... -
Hydrologic Impacts due to Changes in Conveyance and Conversion from Flood to Sprinkler Irrigation Practices
(American Society of Civil Engineers, 2004)Improvements in irrigation efficiency are well documented when changing from flood to sprinkler irrigation methods; however, other impacts to the watershed associated with this change are not well known. The resulting ... -
Comparative Analysis of Hydraulic Calculation Methods in Design of Microirrigation Laterals
(American Society of Civil Engineers, 2004)The hydraulic design of a lateral or a submain unit in a microirrigation system has been a problem tackled by many authors. In applications of previous analytical approaches for trickle lateral hydraulic computation, it ...