Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 2421-2440 of 3826
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Assessing Reference Evapotranspiration by the Hargreaves Method in Southern Spain
(American Society of Civil Engineers, 2004)The Hargreaves method enables reference crop evapotranspiration -
Discussion of “Determining Minor Head Losses in Drip Irrigation Laterals. I: Methodology” by Luis Juana, Leonor Rodríguez-Sinobas, and Alberto Losada
(American Society of Civil Engineers, 2004) -
Closure to “Determining Minor Head Losses in Drip Irrigation Laterals. I: Methodology” by Luis Juana, Leonor Rodrı´guez-Sinobas, and Alberto Losada
(American Society of Civil Engineers, 2004) -
Discussion of “Determining Minor Head Losses in Drip Irrigation Laterals. I: Methodology” by Luis Juana, Leonor Rodríguez-Sinobas, and Alberto Losada
(American Society of Civil Engineers, 2004) -
Performance of Low-Cost Ejectors
(American Society of Civil Engineers, 2004)Despite its widespread use in agricultural systems, the Venturi-type ejector presents lower efficiency than that obtained by conventional jet pumps. In this study, low-cost ejectors built from PVC T-junctions, with geometry ... -
Simulation Model for Level Furrows. II: Description, Validation, and Application
(American Society of Civil Engineers, 2004)In a companion paper, experimental evidence was elaborated to confirm that in particular circumstances the performance of level-furrow irrigation can exceed that of level-basin irrigation. The application of a single furrow ... -
Analysis of Clément’s First Formula for Irrigation Distribution Networks
(American Society of Civil Engineers, 2004)The aim of this article is to determine with real data to what extent the hypotheses on which Clément’s first formula is based are fulfilled, and to compare the results of applying this formula. To this end the flow demand ... -
History of Drainage in the Bureau of Reclamation
(American Society of Civil Engineers, 2004)In the early days of the Reclamation Service, the criteria for irrigability of lands generally consisted of two elements: (1) is water available? and (2) can we get the water to the land? Within a few years, many of the ... -
Discussion of “A Paradigm Shift in Irrigation Management” by Marshall J. English, Kenneth H. Solomon, and Glenn J. Hoffman
(American Society of Civil Engineers, 2004) -
Effect of Covers for Soil and Water Conservation Using Tilting Flume
(American Society of Civil Engineers, 2004)The effect of stone and vegetative covers was evaluated for soil and water conservation in a waterway on alfisols. Experiments were conducted on a hydraulic tilting flume under simulated flow (93 and 40 -
Parameter Estimation for Muskingum Models
(American Society of Civil Engineers, 2004)A methodology for parameter estimation for the Muskingum model of streamflow routing is developed. The methodology minimizes the outflow prediction errors subject to the satisfaction of the streamflow-routing equations for ... -
Simulation Model for Level Furrows. I: Analysis of Field Experiments
(American Society of Civil Engineers, 2004)The level-furrow irrigation system consists of furrowing a level basin. In level furrows, irrigation proceeds just like in level basins: the field is flooded from one point and water spreads to irrigate each furrow. Several ... -
Design of Minimum Seepage-Loss Nonpolygonal Canal Sections with Drainage Layer at Shallow Depth
(American Society of Civil Engineers, 2004)Analytical solutions exist for the seepage discharge from polygonal and nonpolygonal canal sections underlain by a drainage layer at a hydraulically infinite depth. These solutions lead to underestimation of the seepage ... -
Discussion of “Drop in Combined Sewer Manhole for Supercritical Flow” by Flavio De Martino, Corrado Gisonni, and Willi H. Hager
(American Society of Civil Engineers, 2004) -
Closure to “Drop in Combined Sewer Manhole for Supercritical Flow” by Flavio De Martino, Corrado Gisonni, and Willi H. Hager
(American Society of Civil Engineers, 2004) -
Review of <i>The Watershed Project Management Guide</i> by Thomas E. Davenport
(American Society of Civil Engineers, 2004) -
Modeling Water Balance Parameters for Rainfed Rice
(American Society of Civil Engineers, 2004)A field water balance model is developed for rainfed rice in medium land (a rice field with intermittent ponding and drying phase is characterized as medium land) in eastern India with provision of supplemental irrigation ... -
Transition Effects in Flow Over Side Weirs
(American Society of Civil Engineers, 2004)The effect of water surface slope in the lateral direction on flow over side weirs was studied. Water surface elevation on the weir plane was expressed by a parameter ψ based upon the hydraulic profile on the channel axis. ... -
Analytical Relationships for Designing Rectangular Drip Irrigation Units
(American Society of Civil Engineers, 2004)Approximate analytical expressions were obtained that relate uniformity indices of water distribution in rectangular drip irrigation units as a function of the variables that define that unit: lengths and diameters of ... -
Computing Inlet Pressure Head of Multioutlet Pipeline
(American Society of Civil Engineers, 2003)Expressions for the factor