Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 2981-3000 of 3826
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General End-Depth–Discharge Relationship at Free Overfall in Trapezoidal Channel
(American Society of Civil Engineers, 1995)There are relatively few investigations of the free overfall in a trapezoidal channel and its practical use as a flow-measuring device. The flow over a fall in a trapezoidal channel is simulated by that over a sharp-crested ... -
Downstream Control of Multireach Canal Systems
(American Society of Civil Engineers, 1995)A downstream control algorithm was developed for the control of multireach canal systems. The objective of the control is to maintain a target water level at the downstream end of each pool by adjusting the control gate ... -
Comparison of Vapor-Pressure-Deficit Calculation Methods—Southern High Plains
(American Society of Civil Engineers, 1995)Vapor-pressure deficit ( -
Compaction and Water Velocity Effects on Soil Erosion in Shallow Flow
(American Society of Civil Engineers, 1995)A laboratory investigation was conducted to study the effects of soil compaction and soil strength on the erodibility of a silty sand soil. A 6.1-m-long flume was designed and constructed to measure erosion. Erosion rates ... -
Irrigation-Drainage Design and Management Model: Validation and Application
(American Society of Civil Engineers, 1995)The Colorado State University Irrigation and Drainage (CSUID) model is a simulation model, which can be used in the design and management of conjunctive irrigation and drainage systems. It is based on the numerical ... -
Seepage Erosion from Dam-Regulated Flow: Case of Glen Canyon Dam, Arizona
(American Society of Civil Engineers, 1995)Seepage erosion—in particular, slope failures (bank slumps, mass wasting)—is prevalent on most sandbars downstream from the Glen Canyon Dam, Ariz. The public is concerned about the loss of the extant biomass and recreational ... -
Discussions: Irrigation Land Management Model
(American Society of Civil Engineers, 1995) -
Discussion and Closure: Criteria for Evaluation of Watershed Models
(American Society of Civil Engineers, 1995) -
Use of Flood-Control Reservoirs for Drought Management
(American Society of Civil Engineers, 1995)During periods of drought, an important goal of water-resource management is the establishment of realistic reservoir operating policies for water allocation, especially for a river system involved with flood-control ... -
Automatic Irrigation Scheduling System (AISSUM): Principles and Applications
(American Society of Civil Engineers, 1995)Irrigation scheduling, which is used to determine the frequency and dosage of irrigation applications, is required to optimize water use while at the same time maximizing crop yield and farm profit. This paper describes ... -
Discussions: Discharge Prediction in Smooth Trapezoidal Free Overfall—(Positive, Zero and Negative Slopes)
(American Society of Civil Engineers, 1995) -
Intake Parameters from Advance and Wetting Phases of Surface Irrigation
(American Society of Civil Engineers, 1995)A volume balance approach to determine the parameters of the Kostiakov or modified Kostiakov infiltration equations in border and furrow irrigation is presented. The approach requires measured data from the advance phase, ... -
Closure to “Precision of Evapotranspiration Estimates Using Neutron Probe” by Osmar A. Carrijo and Richard H. Cuenca (November/December, 1992, Vol. 118, No. 6)
(American Society of Civil Engineers, 1994) -
Assessment of Streamflow Augmentation in Case of Weakly Dependent Data
(American Society of Civil Engineers, 1995)The effects of cloud seeding projects on streamflow volumes are small with respect to the standard deviations of these volumes. Previous assessments were carried out using probabilistic methods, either directly or after a ... -
Method for Estimating Efficiency in Spanish Irrigation Systems
(American Society of Civil Engineers, 1994)The investigation deals with conveyance efficiency and global hydraulic efficiency in Spanish irrigation systems. The values of conveyance efficiency are calculated for five channels. As the lack of reliable data makes it ... -
Discussion of “Precision of Evapotranspiration Estimates Using Neutron Probe” by Osmar A. Carrijo and Richard H. Cuenca (November/December, 1992, Vol. 118, No. 6)
(American Society of Civil Engineers, 1994) -
Discussion of “Irrigation Timing for Wheat Based on Climate, Crop, and Soil Data” by R. P. Tripathi (May/June, 1992, Vol. 118, No. 3)
(American Society of Civil Engineers, 1994) -
Effect of Surface Source Variation on Seawater Intrusion in Aquifers
(American Society of Civil Engineers, 1995)A one-dimensional sharp interface finite-element model is used for parametric studies on the transient behavior of seawater intrusion due to the linear variation of the surface source level. The validity of the numerical ... -
Defining Furrow Cross Section
(American Society of Civil Engineers, 1995) -
Effect of Saline Irrigation Water on Tree Growth
(American Society of Civil Engineers, 1994)Starting and maintaining windbreaks are especially important in arid and semiarid agricultural areas. To evaluate which of several species of trees might be most appropriate for windbreaks in various environments, a factorial ...