Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 1961-1980 of 3826
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Decision Support Systems for Efficient Irrigation in the Middle Rio Grande Valley
(American Society of Civil Engineers, 2009)Water is the lifeblood of the American West and the foundation of its economy, but it remains its scarcest resource. The explosive population growth in western United States, the emerging additional need for water for ... -
Probability of Pressure Deficit in On-Demand Branched Networks and Incorporation into Design Decisions
(American Society of Civil Engineers, 2009)This technical paper presents analytical expressions to estimate the probability function of head losses in any path of an on-demand branched irrigation network. They are developed for estimating the probability of pressure ... -
Effect of Preharvest Deficit Irrigation on Second Crop Watermelon Grown in an Extremely Hot Climate
(American Society of Civil Engineers, 2009)As a second crop, watermelons ( -
Statistical Analysis of Reference Evapotranspiration on the Tibetan Plateau
(American Society of Civil Engineers, 2009)Net radiation is an important and site-specific component to determine reference evapotranspiration -
Discussion of “Flooding Probability Constrained Optimal Design of Trapezoidal Channels” by Amlan Das
(American Society of Civil Engineers, 2009) -
Graphical Calculation of First-Flush Flow Rates for Storm-Water Quality Control
(American Society of Civil Engineers, 2009)Regulations for mitigating nonpoint source pollution from small catchments often include requirements for treating a -
Evaluation of Closed-Loop Site-Specific Irrigation with Wireless Sensor Network
(American Society of Civil Engineers, 2009)Automated site-specific sprinkler irrigation system can save water and maximize productivity, but implementing automated irrigation is challenging in system integration and decision making. A controllable irrigation system ... -
Prototype Geographic Information System for Agricultural Water Quality Management Using CropSyst
(American Society of Civil Engineers, 2009)A prototype raster geographic information system (GIS) coupled with a decision support submodel for agricultural nitrogen nonpoint source pollution analysis is presented herein. This analysis is an extension of the ... -
Data Mining Process for Integrated Evaporation Model
(American Society of Civil Engineers, 2009)The purpose of this study is to develop an integrating evaporation estimation model using a data mining process for the Lakes District in the southern part of Turkey. Lakes Eğirdir, Kovada, and Karacaören Dam are located ... -
Subsurface Water Distribution from Furrows Described by Moment Analyses
(American Society of Civil Engineers, 2009)Moment analysis techniques are applied to describe the spatial and temporal subsurface wetting patterns resulting from furrow infiltration and redistribution. These techniques are adapted from previous work with drip ... -
Maximum Area That Can Be Economically Irrigated by Solar Photovoltaic Pumping System
(American Society of Civil Engineers, 2009)This work describes the cost efficiency of a solar photovoltaic (PV) pumping system for irrigation system in relation to the most effective traditional power system, a diesel engine. A mathematical model for optimal sizing ... -
Simulation of a Collective Solid-Set Sprinkler Irrigation Controller for Optimum Water Productivity
(American Society of Civil Engineers, 2009)The modernization of irrigation districts in Spain is based on the construction of collective pressurized networks equipped with remote control systems. In this paper, a simulation approach is used to explore the benefits ... -
Effects of Different Levels of Irrigation Water Salinity and Leaching on Yield and Yield Components of Wheat in an Arid Region
(American Society of Civil Engineers, 2009)Soil salinity is a major environmental factor limiting the productivity of agricultural lands. To determine the effects of irrigation water salinity and leaching on soil salinity and consequently wheat yield, a field ... -
Simulating Water Management and Supply Effects at the Office du Niger Collective Canal Irrigation Scheme
(American Society of Civil Engineers, 2009)This paper demonstrated how a modeling approach can be used to find the optimal mix of farmers’ water management practices to improve irrigation efficiency at the tertiary level in collective canal schemes. The approach ... -
Closure to “Simple Equations for Aquifer Parameters from Drawdowns in Large-Diameter Wells” by Sushil K. Singh
(American Society of Civil Engineers, 2009) -
Simple Model for Analyzing Transient Pumping from Two Aquifers without Cross Flow
(American Society of Civil Engineers, 2009)A computationally simple semianalytical model is proposed for calculating the drawdown due to pumping a well tapping two aquifers separated by an aquiclude with no cross flow. The new model can take into account the transient ... -
Discussion of “Minimum Specific Energy and Critical Flow Conditions in Open Channels” by H. Chanson
(American Society of Civil Engineers, 2008) -
Minimal-Seepage Depth of Isobaric Cavity under Ponded Conditions
(American Society of Civil Engineers, 2009)A zero-pressure isobar is reconstructed in a potential Laplacian field generated by a sink–source pair that models steady-state Darcian seepage from a ponded soil surface to a cavity draining a homogeneous isotropic ... -
Simplified Method for Sizing Laterals with Two or More Diameters
(American Society of Civil Engineers, 2009)The economic design of microirrigation and sprinkler laterals requires the use of a combination of diameters of different lengths. The present practice is to solve the basic hydraulic equations using a trial-and-error ... -
Discussion of “Solution of Specific Energy and Specific Force Equations” by Amlan Das
(American Society of Civil Engineers, 2008)