Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 1181-1200 of 3826
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Improving Irrigation Water Delivery Performance of a Large-Scale Rice Irrigation Scheme
(American Society of Civil Engineers, 2014)The availability of irrigation water and its equitable allocation in a large-scale rice irrigation scheme of Malaysia have been modeled. The model reliably estimates available water for irrigation at the intake of the main ... -
Reservoir Operation with Fuzzy State Variables for Irrigation of Multiple Crops
(American Society of Civil Engineers, 2015)This paper presents the development and application of a stochastic dynamic programming model with fuzzy state variables for irrigation of multiple crops. A fuzzy stochastic dynamic programming (FSDP) model is developed ... -
Calibration and Application of Aquaflex TDT Soil Water Probes to Measure the Soil Water Dynamics of Agricultural Topsoil in Southwest Germany
(American Society of Civil Engineers, 2015)Soil water plays a key role in crop growth and yield formation. A sustainable irrigation management depends on a reliable soil water monitoring. The present study was conducted to derive site-specific and pedotransfer ... -
Modeling Pasture Dynamics in a Mediterranean Environment: Case Study in Sardinia, Italy
(American Society of Civil Engineers, 2015)In this paper it was developed and tested a hydrologically based, spatially distributed crop yield model for the purpose of modeling pasture dynamics within the Mediterranean environment of Marghine Goceano, in Sardinia ... -
Simulation of the Streamflow for the Rio Nuevo Watershed of Jamaica for Use in Agriculture Water Scarcity Planning
(American Society of Civil Engineers, 2015)Jamaica’s water resources are under increasing risk of degradation and depletion, especially in light of increasing population growth, urbanization, and climate change. In this study, the soil and water assessment tool ... -
Discussion of “Discharge Coefficient of Circular-Crested Weirs Based on a Combination of Flow around a Cylinder and Circulation” by Abdorreza Kabiri-Samani and Sara Bagheri
(American Society of Civil Engineers, 2015) -
Discussion of “Discharge Coefficient of Circular-Crested Weirs Based on a Combination of Flow around a Cylinder and Circulation” by Abdorreza Kabiri-Samani and Sara Bagheri
(American Society of Civil Engineers, 2015) -
Closure to “Discharge Coefficient of Circular-Crested Weirs Based on a Combination of Flow around a Cylinder and Circulation” by Abdorreza Kabiri-Samani and Sara Bagheri
(American Society of Civil Engineers, 2015) -
Critical and Normal Depths in Semielliptical Channels
(American Society of Civil Engineers, 2015)Normal and critical epths are important parameters in the design, operation, and maintenance of open channels. Semielliptical, prefabricated channels are widely used as tertiary canals in irrigation networks. In semielliptical ... -
Steady-State Water Tables in Drained Lands Modeled Using the HYDRUS Package and Compared with Theoretical Analyses
(American Society of Civil Engineers, 2015)Steady-state water tables above parallel lines of cylindrical drains in an infinitely deep soil with uniform surface rainfall were modeled using a computer package that considers the flow in both the groundwater and ... -
Effect of Urban Debris on Hydraulic Efficiency of an Elliptical Sharp-Crested Weir
(American Society of Civil Engineers, 2015)An elliptical sharp-crested weir design was developed for detention pond outlets to address discharge, pollution, and maintenance concerns. The weir was designed in an effort to efficiently pass debris through an outlet ... -
Estimating Potential Transpiration of Apple Trees Using Theoretical Non-Water-Stressed Baselines
(American Society of Civil Engineers, 2015)To maximize irrigation efficiency, applied water has to be precisely adjusted to the crop water use. This study develops a method based on the energy balance of a single apple leaf to calculate potential transpiration ( -
Quantification of Soil Moisture Effects on Runoff Formation at the Hillslope Scale
(American Society of Civil Engineers, 2015)Pre-rain-event soil moisture (preSM) plays a crucial role when evaluating runoff formation during heavy rainfall. Using sprinkling experiments and numerical modeling, this study investigates the impact of preSM on runoff ... -
New Adaptive Hybrid-Automatic Irrigation Control System for Soilless Culture
(American Society of Civil Engineers, 2015)In soilless culture, irrigation scheduling is an important and difficult task, as water and nutrients must be frequently and precisely applied, due to the reduced volume and low water holding capacity of most of the ... -
Compute Critical and Normal Depths of Arch and Elliptical Pipes
(American Society of Civil Engineers, 2015)Arch and elliptical pipes are commonly used as roadway culverts. The pipe section is composed of three radii, which result in complex equations to compute cross-sectional geometry and hydraulic parameters, such as normal ... -
Vertical and Lateral Extent of the Influence of a Rain Garden on the Water Table
(American Society of Civil Engineers, 2015)Rain gardens use natural processes, such as infiltration and evapotranspiration, to control runoff from rain events. Although prior research has shown that rain gardens are effective at controlling the volume of runoff and ... -
Free Hydraulic Jump Due to Parallel Jets
(American Society of Civil Engineers, 2015)Due to construction, operation, and maintenance difficulties, usually installing very wide sluice gates in open channels is not recommended. Instead, multiple parallel gates have been used in such circumstances, which ... -
Closure to “Discharge Characteristics of a Trapezoidal Labyrinth Side Weir with One and Two Cycles in Subcritical Flow” by M. Emin Emiroglu, M. Cihan Aydin, and Nihat Kaya
(American Society of Civil Engineers, 2015) -
Reliability Analysis of Open Drainage Channels under Multiple Failure Modes
(American Society of Civil Engineers, 1994)Open drainage channel design involves variables that are uncertain. Because the performance of the channel system is also uncertain, reliability analysis is used to measure the reliability of the system performance. In ... -
Effects of Aggregate Masking on Soil Infiltration under an Aggregate Bed
(American Society of Civil Engineers, 2015)This research seeks to address questions about the reduction in soil infiltration rates due to masking or embedding when a layer of open-graded aggregate is placed on top of soil. This is pertinent to the design and modeling ...