Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 1681-1700 of 3826
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Effects of Magnetized Water and Irrigation Water Salinity on Soil Moisture Distribution in Trickle Irrigation
(American Society of Civil Engineers, 2011)Magnetized water is obtained by passing water through a strong permanent magnet installed in or on a feed pipeline. This study was performed at Gorgan Agricultural and Natural Resources Research Center, Gorgan province, ... -
Nonuniform and Unsteady Solute Transport in Furrow Irrigation. II: Description of Field Experiments and Calibration of Infiltration and Roughness Coefficients
(American Society of Civil Engineers, 2011)Field tests were conducted to obtain irrigation evaluation and solute transport data. The data were used to calibrate and validate an advection-dispersion model for furrow irrigation. The empirical infiltration equation ... -
Discussion of “Design of Level Ground Laterals in Trickle Irrigation Systems” by Zayani Khemaies and Hammami Moncef
(American Society of Civil Engineers, 2011) -
Theoretical and Experimental Study on Water Offset Flow in Fluidic Component of Fluidic Sprinklers
(American Society of Civil Engineers, 2011)Compared with other rotating sprinklers, the fluidic sprinkler controlled by an outlet clearance has a simpler structure and better hydraulic performance. The offset effect, happening in the fluidic component of the ... -
Zero-Inertial Recession for Kinematic-Wave Model
(American Society of Civil Engineers, 2011)Kinematic-wave models of surface irrigation assume a fixed relationship between depth and discharge (typically, normal depth). When surface-irrigation inflow is cut off, the calculated upstream flow depth goes to zero, ... -
Effects of Soil Water Salinity on Field Soil Hydraulic Functions
(American Society of Civil Engineers, 2011)Unsaturated soil hydraulic parameters and functions used in numerical models to simulate water flow and solute transport in the unsaturated zone are generally considered invariant of soil water salinity levels. This study ... -
Orthophosphate Adsorption Equilibrium and Breakthrough on Filtration Media for Storm-Water Runoff Treatment
(American Society of Civil Engineers, 2011)Total phosphorus (TP) in storm-water runoff is a common regulatory target for maintaining the quality of receiving surface water. Previous storm-water treatment studies show that it is difficult to consistently achieve TP ... -
Furrow Irrigation Advance Simulation Using a Surface–Subsurface Interaction Model
(American Society of Civil Engineers, 2011)A model for the simulation of furrow irrigation advance was developed based on the Saint-Venant equations for the one-dimensional surface flow and the two-dimensional Richards equation for porous media flow. Solutions are ... -
Resolving Disputes over Reservoir-River Operation
(American Society of Civil Engineers, 2011)The main objective of this work is to allocate water with acceptable quality from a reservoir-river system to different water users and to determine the maximum acceptable pollution load that each user discharges to the ... -
Irrigation Scheduling for Green Bell Peppers Using Capacitance Soil Moisture Sensors
(American Society of Civil Engineers, 2011)Vegetable production areas are intensively managed with high inputs of fertilizer and irrigation. The objectives of this study were to evaluate the interaction between N-fertilizer rates and irrigation scheduling using ... -
Closure to “Benchmark of Discharge Calibration Methods for Submerged Sluice Gates” by Carlos Sepúlveda, Manuel Gómez, and José Rodellar
(American Society of Civil Engineers, 2011) -
NRCS Overland Flow Travel Time Calculation
(American Society of Civil Engineers, 2011)Overland flow travel time given by the formula developed by the Natural Resources Conservation Service (NRCS) on the basis of kinematic wave theory can underpredict for short, steep, flow planes having low flow resistance ... -
ReSET-Raster: Surface Energy Balance Model for Calculating Evapotranspiration Using a Raster Approach
(American Society of Civil Engineers, 2011)Surface energy balance models developed for mapping evapotranspiration at high resolution use weather station data. Previous models such as SEBAL or METRIC use wind and reference evapotranspiration from a single weather ... -
Evaluation of 13 Empirical Reference Potential Evapotranspiration Equations on the Island of Crete in Southern Greece
(American Society of Civil Engineers, 2011)Knowledge of reference potential evapotranspiration ( -
Combined Brooks-Corey/Burdine and van Genuchten/Mualem Closed-Form Model for Improving Prediction of Unsaturated Conductivity
(American Society of Civil Engineers, 2011)The performance of the widely used conventional closed-form models of Brooks and Corey and van Genuchten is restricted to soils characterized by a specific shape form of the water retention curve. Hence, the van Genuchten ... -
Discussion of “Generalized Analytical Solutions for Groundwater Head in Inclined Aquifers in the Presence of Subsurface Drains” by Sushil K. Singh
(American Society of Civil Engineers, 2011) -
Using Indicator Kriging Technique for Soil Salinity and Yield Management
(American Society of Civil Engineers, 2011)This paper presents a practical method to manage soil salinity and yield in order to obtain maximum economic benefits. The method was applied to a study area located in the southeastern part of the Arkansas River Basin in ... -
Discussion of “Discharge Capacity of Labyrinth Side Weir Located on a Straight Channel” by M. Emin Emiroglu, Nihat Kaya, and Hayrullah Agaccioglu
(American Society of Civil Engineers, 2011) -
Flow Rate Sensitivity due to Parshall Flume Staff Gauge Location and Entrance Wing Wall Configuration
(American Society of Civil Engineers, 2011)Parshall flume tests were conducted to determine the sensitivity on indicated flow rate resulting from improperly located staff gauges and differing entrance conditions to the flume. An acrylic 2 ft (61 cm) Parshall flume ... -
Scour due to Crossing Jets at Fixed Vertical Angle
(American Society of Civil Engineers, 2011)Plunge pool scour is an important topic in hydraulic structures design. Numerous studies have been done in past years to understand the scour phenomenon due to plunging jets. These studies finally aimed at reducing the ...