Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 541-560 of 3826
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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 ... -
Experimental Approach to Assessing Aerosol Dispersion of Treated Wastewater Distributed via Sprinkler Irrigation
(American Society of Civil Engineers, 2016)Treated wastewater reuse (TWWR) offers a promising solution for farm crop and turf irrigation while also mitigating the environmental pressures resulting from effluent disposal in the environment. Most attention is devoted ... -
Arranged-Demand Irrigation Scheduling with Nonidentical Discharges
(American Society of Civil Engineers, 2016)Several irrigation water delivery methods are in practice in irrigated agriculture throughout the world, and a variety of classifications have been suggested by different researchers. Demand, arranged-demand, and rotation ... -
Economic Return versus Crop Water Productivity of Maize for Various Nitrogen Rates under Full Irrigation, Limited Irrigation, and Rainfed Settings in South Central Nebraska
(American Society of Civil Engineers, 2016)Field research was conducted at the University of Nebraska-Lincoln South Central Agricultural Laboratory (SCAL) located near Clay Center, NE, in the growing seasons of 2011 to 2014. A partial economic analysis was conducted ... -
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 ... -
Energy Grade Line Assessment for Tapered Microirrigation Laterals
(American Society of Civil Engineers, 2016)In pressurized irrigation systems the total long-term costs can often be minimized by dividing the pipeline into segments of different diameters. To properly design such a system requires an accurate hydraulic analysis. ... -
Alternative CN Averaging Methods for Determining the Representative CN of a Watershed
(American Society of Civil Engineers, 2016)A representative curve number (CN) of a catchment is often calculated from the area-weighted average of CN values of unique land use and soil combinations. While convenient for implementation, this method is known to ... -
Sprinkler Irrigation Droplet Dynamics. II: Numerical Solution and Model Evaluation
(American Society of Civil Engineers, 2016)A system of equations, with strong physical basis, was derived for sprinkler irrigation droplet dynamics in the companion paper. Numerical solution of these equations and model evaluation is discussed in this paper. With ... -
Sprinkler Irrigation Droplet Dynamics. I: Review and Theoretical Development
(American Society of Civil Engineers, 2016)Droplet dynamics simulations are key to predicting sprinkler irrigation precipitation patterns. This paper includes derivations of equations describing droplet motion through a steady, uniform horizontal airflow (wind). ... -
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 ... -
Normal Depth Equations for Parabolic Open Channel Sections
(American Society of Civil Engineers, 2016)Normal depth is a key parameter occurring in open-channel hydraulics. For all practical canal sections, open-channel resistance equation involves implicit form for normal depth. Therefore, the determination of the normal ... -
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 (Tdew). The main aim of employing FFA is to identify the ... -
Construction Risk Management of Irrigation Dams
(American Society of Civil Engineers, 2016)The timely completion of complex dam-construction projects is a challenging proposition, both in developing and developed countries. Delays are frequent in such projects and impose costly burdens on regional and national ... -
Deducing a Drain Spacing Formula by Applying Dimensional Analysis and Self-Similarity Theory
(American Society of Civil Engineers, 2016)For designing a steady-state drainage system, a drain flow formula coupled with the Dupuit-Forcheimer form of the differential equation of groundwater flow is used. First, the most-applied drain flow formulas in steady-state ... -
Nonlinear Muskingum Model for Flood Routing in Irrigation Canals Using Storage Moving Average
(American Society of Civil Engineers, 2016)The Muskingum routing method involves the calculation of the storage volume in river reaches. The accurate calculation of the storage volume is difficult to achieve with the nonlinear Muskingum model (NMM). This paper ... -
Integrator Delay Zero Model for Design of Upstream Water-Level Controllers
(American Society of Civil Engineers, 2017)A variety of methods are in use for the design of controllers for adjusting canal gate positions to maintain a constant water level immediately upstream from check gates. These methods generally rely on a series of tests ... -
Erratum for “Diagnostic Curve for Confined Aquifer Parameters from Early Drawdowns” by Sushil K. Singh
(American Society of Civil Engineers, 2016) -
Selecting an Appropriate Operational Method for Main Irrigation Canals within Multicriteria Decision-Making Methods
(American Society of Civil Engineers, 2016)In this study, a systematic framework is introduced to prioritize several practical canal operation alternatives applying to modernization and rehabilitation projects. Several operation techniques, ranging from improved ... -
Discussion of “Levee Layouts and Design Optimization in Protection of Flood Areas” by Omid Bozorg Haddad, Parisa-Sadat Ashofteh, and Miguel A. Mariño
(American Society of Civil Engineers, 2016)