Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 2121-2140 of 3826
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Discussion of “Exact Equations for Critical Depth in a Trapezoidal Canal” by Prabhata K. Swamee and Pushpa N. Rathie
(American Society of Civil Engineers, 2007) -
Physically Based Coupled Model for Simulating 1D Surface–2D Subsurface Flow and Plant Water Uptake in Irrigation Furrows. I: Model Development
(American Society of Civil Engineers, 2007)Physically based modeling of the interacting water flow during a furrow irrigation season can contribute to both a sustainable irrigation management and an improvement of the furrow irrigation efficiency. This paper presents ... -
Field-Scale Assessment of Uncertainties in Drip Irrigation Lateral Parameters
(American Society of Civil Engineers, 2007)Grass establishment on railway embankment steep slopes for erosion control in Central Queensland, Australia, is aided by drip lateral irrigation systems. The effective field values of the lateral parameters may be different ... -
Discussion of “Exact Equations for Critical Depth in a Trapezoidal Canal” by Prabhata K. Swamee and Pushpa N. Rathie
(American Society of Civil Engineers, 2007) -
New Computational Fluid Dynamic Procedure to Estimate Friction and Local Losses in Coextruded Drip Laterals
(American Society of Civil Engineers, 2007)The design of trickle irrigation systems is crucial to optimize profitability and to warrant high values for the emission uniformity (EU) coefficient. EU depends on variation of the pressure head due to head losses along ... -
Optimum Design and Management of Pressurized Branched Irrigation Networks
(American Society of Civil Engineers, 2007)The scarcity of water resources is the driving force behind modernizing irrigation systems in order to guarantee equal rights to all beneficiaries and to save water. Traditional distribution systems have the common shortcoming ... -
Closure to “Exact Equations for Critical Depth in a Trapezoidal Canal” by Prabhata K. Swamee, Pushpa N. Rathie
(American Society of Civil Engineers, 2007) -
Approach to Control the Depth of Water in Basin Irrigation and Wetland Flooding
(American Society of Civil Engineers, 2007)The controlled ponding of water over level terrain in basin irrigation or wetland flooding is described quantitatively as a three-phase process. During the first phase, water is applied at a known rate until ponding emerges ... -
Residential Irrigation Water Use in Central Florida
(American Society of Civil Engineers, 2007)Automatic inground irrigation is a common option for residential homeowners desiring high-quality landscapes in Florida. However, rapid growth is straining water supplies in some areas of the state. The first objective of ... -
Awards
(American Society of Civil Engineers, 2007) -
Screening of Soil Amendments for Efficient Water-Holding Capacity Based on a Rainfall-Infiltration Model in a Vertisol
(American Society of Civil Engineers, 2007)A simulation study was conducted with five soil amendments, viz., goat manure, coir pith, phosphogypsum, polyacrylamide, and a control at two rainfall intensities of 60 and -
Development and Evaluation of Soil Moisture-Based Seepage Irrigation Management for Water Use and Quality
(American Society of Civil Engineers, 2007)A -
Developing Regression Models for Predicting Pan Evaporation from Climatic Data—A Comparison of Multiple Least-Squares, Principal Components, and Partial Least-Squares Approaches
(American Society of Civil Engineers, 2007)Regression models for predicting daily pan evaporation depths from climatic data were developed using three multivariate approaches: multiple least-squares regression (MLR), principal components regression (PCR), and partial ... -
Chance-Constrained Optimization-Based Parameter Estimation for Muskingum Models
(American Society of Civil Engineers, 2007)The development of a chance-constrained optimization-based model for Muskingum model parameter estimation is presented. The desired Muskingum model parameters are to be useful to give the flood forecast in terms of expected ... -
Analysis of Spatial Scenarios Aiding Decision Making for Regional Irrigation Water-Demand Planning
(American Society of Civil Engineers, 2007)Regional irrigation water-demand planning is utilized to establish appropriate cropping patterns and estimate irrigation water demand. Although optimization methods have been extensively adopted, uncertainties of meteorological ... -
Discharge Relation for Cutthroat Flume under Free-Flow Condition
(American Society of Civil Engineers, 2007)A cutthroat flume is commonly used as flow measuring device for open-channel flow due to ease of fabrication and installation. In most of the cases it is difficult to calibrate the flume in the field. Therefore, accurate ... -
Modifications to SCS-CN Method for Long-Term Hydrologic Simulation
(American Society of Civil Engineers, 2007)The original soil conservation service curve number (SCS-CN) technique is primarily used to transform daily rainfall into surface runoff by assuming the proportionality between retention and surface runoff based on a ... -
Optimizing Aquifer Parameters from Drawdowns in Large Diameter Wells
(American Society of Civil Engineers, 2007)An optimization method is proposed for estimating the storage coefficient and transmissivity of an aquifer from drawdowns in large diameter wells consequent to an unsteady pumping. The concept of an optimal time step size ... -
Satellite-Based Energy Balance for Mapping Evapotranspiration with Internalized Calibration (METRIC)—Model
(American Society of Civil Engineers, 2007)Mapping evapotranspiration at high resolution with internalized calibration (METRIC) is a satellite-based image-processing model for calculating evapotranspiration (ET) as a residual of the surface energy balance. METRIC ... -
Solution of Specific Energy and Specific Force Equations
(American Society of Civil Engineers, 2007)Alternate depths and sequent depths are calculated by solving the specific energy and specific force equations, respectively. The specific energy and specific force equations result in fifth degree polynomial equations for ...