Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 821-840 of 3826
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Accuracy of Calculation of Parameters for Characterization of Emitters in Trickle Irrigation
(American Society of Civil Engineers, 2017)Indoor laboratory tests were carried out to determine the accuracy with which the coefficient of manufacturing variation (CV), the discharge coefficient (K), and the emitter discharge exponent (x) may be measured and ... -
Effect of Floodplain Obstructions on the Discharge Conveyance Capacity of Compound Channels
(American Society of Civil Engineers, 2017)Results of an experimental study into steady uniform flows in compound open channels with cylindrical obstructions designed to mimic emergent vegetation is presented. Two configurations—fully covered floodplain and one-line ... -
Efficient Simulation of Surface Solute Transport in Basin Fertigation
(American Society of Civil Engineers, 2017)Numerical models are convenient for the management of basin fertigation. However, the characteristic line approach, commonly applied to solve the advection-dispersion equation, presents disadvantages such as numerical ... -
Energy Dissipation in Circular Drop Manholes
(American Society of Civil Engineers, 2017)Energy dissipation is one of the main considerations in the design of drop manholes and is closely related to the flow regimes observed. Four flow regimes in a drop manhole are classified according to different flow ... -
Response of Water and Nitrogen Losses to Water Management Practices and Green Manure Application in Lowland Paddy Fields
(American Society of Civil Engineers, 2017)The complexity of agricultural water management practices has challenged researchers attempting to determine how hydrological pathways affect water and nitrogen (N) losses. Field experiments in a typical rice agricultural ... -
Modern Operation of Main Irrigation Canals Suffering from Water Scarcity Based on an Economic Perspective
(American Society of Civil Engineers, 2017)The main objective of this study is to determine the optimal distribution of water between upstream and downstream users in a main irrigation canal with a limited supply of water in order to maximize the net revenue derived ... -
Development of a Comparative Multiple Criteria Framework for Ranking Pareto Optimal Solutions of a Multiobjective Reservoir Operation Problem
(American Society of Civil Engineers, 2016)Real-world, multiobjective, reservoir optimization problems (MOOPs) usually have conflicting objective functions. Multiobjective evolutionary algorithms (MOEAs) have been applied to solve multiobjective optimization problems. ... -
Simulation of Methyl Tertiary Butyl Ether Concentrations in River-Reservoir Systems Using Support Vector Regression
(American Society of Civil Engineers, 2016)Mathematical and numerical models are used to simulate the transport of pollutants released into a water body. Such simulations can be computationally burdensome, however. One approach to overcome computational burdens ... -
Coastal Flood Damage Estimator: An Alternative to FEMA’s HAZUS Platform
(American Society of Civil Engineers, 2016)Floods are the most devastating natural hazards in the United States, and these events lead to significant economic consequences. Estimation of damages and losses at different parts of the floodplain can be used to identify ... -
Discussion of “Calibration of the 10HS Soil Moisture Sensor for Southwest Florida Agricultural Soils” by David Spelman, Kristoph-Dietrich Kinzli, and Tanya Kunberger
(American Society of Civil Engineers, 2015) -
Discussion of “Procedures to Develop a Standardized Reference Evapotranspiration Zone Map” by Noemi Mancosu, Richard L. Snyder, and Donatella Spano
(American Society of Civil Engineers, 2015) -
Fully Hydrodynamic Coupled Simulation of Surface Flows in Irrigation Furrow Networks
(American Society of Civil Engineers, 2016)Saint-Venant equations are accurately solved by a fully implicit solution, and a numerical model for furrow water flow is proposed with unconditional stability. Furthermore, this numerical model is extended to furrow ... -
Prediction of Daily Dewpoint Temperature Using a Model Combining the Support Vector Machine with Firefly Algorithm
(American Society of Civil Engineers, 2016)In this research work, a hybrid approach of integrating a support vector machine (SVM) with firefly algorithm (FFA) is proposed to predict daily dewpoint temperature ( -
New Approach for Estimation of Rectangular Side Weirs Discharge in Subcritical Flow
(American Society of Civil Engineers, 2016)Side weirs are used to divert the flow from a main channel to a desired environmental area. These basic hydraulic elements are commonly preferred in drainage and irrigation systems of surface water. Many studies have been ... -
Closure to “Staged Labyrinth Weir Hydraulics” by M. R. Dabling, B. P. Tullis, and B. M. Crookston
(American Society of Civil Engineers, 2015) -
Implementing Smart Controllers on Single-Family Homes with Excessive Irrigation
(American Society of Civil Engineers, 2015)In this study, smart irrigation controllers were targeted toward single-family potable water customers in Orange County, Florida with excessive landscape irrigation patterns. Out of five treatments, four treatments received ... -
Hydraulic Characteristics of the Drainage Systems of Ancient Hellenic Theatres: Case Study of the Theatre of Dionysus and Its Implications
(American Society of Civil Engineers, 2015)The content of this article provides interesting history, facts, and information about the drainage systems of ancient theaters in mainland Greece and Asia Minor from prehistoric times until the Hellenistic period. This ... -
Applications of Erosion Hotspots for Watershed Investigation in the Appalachian Hills of the United States
(American Society of Civil Engineers, 2016)Soil erosion, more than any other factor, has more significant and direct impacts on a hydrological watershed in terms of environmental problems. After deriving the erosion hotspots, this study used them to investigate two ... -
Assessment of Soil Moisture Uptake under Different Salinity Levels for Paddy Crop
(American Society of Civil Engineers, 2016)The core of salinity problems starts from the fact that irrigation waters contain some amount of dissolved salts. Soil moisture salinity is dependent on soil type, climate, water use, and irrigation. The root water-uptake ...