Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 2141-2160 of 3826
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Review of Drought Management and Planning for Water Resources by Joaquin Andreu, Giuseppe Rossi, Federico Vagliasindi, and Alida Vela
(American Society of Civil Engineers, 2007) -
Adaptive Neurofuzzy Computing Technique for Evapotranspiration Estimation
(American Society of Civil Engineers, 2007)The accuracy of an adaptive neurofuzzy computing technique in estimation of reference evapotranspiration -
Approximation of Well Function for Large Diameter Wells
(American Society of Civil Engineers, 2007)A computationally simple and accurate algebraic approximation of the well function for large diameter wells is proposed. This approximation can be used to calculate drawdown in a large diameter well due to steady pumping. ... -
Discussion of “Modified Hazen–Williams and Darcy–Weisbach Equations for Friction and Local Head Losses along Irrigation Laterals” by John D. Valiantzas
(American Society of Civil Engineers, 2007) -
Satellite-Based Energy Balance for Mapping Evapotranspiration with Internalized Calibration (METRIC)—Applications
(American Society of Civil Engineers, 2007)Recent satellite image processing developments have provided the means to calculate evapotranspiration (ET) as a residual of the surface energy balance to produce ET “maps.” These ET maps (i.e., images) provide the means ... -
Closure to “Modified Hazen–Williams and Darcy–Weisbach Equations for Friction and Local Head Losses along Irrigation Laterals” by John D. Valiantzas
(American Society of Civil Engineers, 2007) -
Using HYDRUS-2D Simulation Model to Evaluate Wetted Soil Volume in Subsurface Drip Irrigation Systems
(American Society of Civil Engineers, 2007)Drip irrigation is considered one of the most efficient irrigation systems. Alternatively to the traditional drip irrigation systems, laterals can be installed below the soil surface. Realizing the subsurface drip irrigation ... -
Estimating Daily Net Radiation over Vegetation Canopy through Remote Sensing and Climatic Data
(American Society of Civil Engineers, 2007)Net radiation -
Growth, Evapotranspiration, and Nitrogen Leaching from Young Lysimeter-Grown Orange Trees
(American Society of Civil Engineers, 2007)Lysimeters constructed from polyethylene tanks were filled with Oldsmar fine sand soil. A single “Midsweet” orange on Carrizo citrange rootstock tree was planted in each lysimeter on May 5, 1991. Fertilization treatments ... -
New Methodology to Evaluate Flow Rates in On-Demand Irrigation Networks
(American Society of Civil Engineers, 2007)Although Clément methodology is the most commonly used model for obtaining the design flow rate in on-demand irrigation networks, studies have shown that the Clément methodology does not always fit properly. A new stochastic ... -
Quantifying Rainfall and Flooding Impacts on Groundwater Levels in Irrigation Areas: GIS Approach
(American Society of Civil Engineers, 2007)Landscapes continuously irrigated without proper drainage for a long period of time frequently experience a rise in water-table levels. Waterlogging and salinization of irrigated areas are immediate impacts of this situation ... -
Explicit Infiltration Function for Furrows
(American Society of Civil Engineers, 2007)This study addresses infiltration from furrows or narrow channels. The basic approach is to develop the two-dimensional infiltration as a combination of the corresponding one-dimensional vertical and an edge effect. The ... -
Theory of Seepage into an Auger Hole in a Confined Aquifer Overlying a Gravel Substratum
(American Society of Civil Engineers, 2007)An analytical solution is presented to the problem of steady groundwater flow seeping into a pumped cylindrical hole partially penetrating a homogeneous and anisotropic confined aquifer overlying a gravel substratum. ... -
Variations of Time of Concentration Estimates Using NRCS Velocity Method
(American Society of Civil Engineers, 2007)Time of concentration -
Optimal Design of a Stable Trapezoidal Channel Section Using Hybrid Optimization Techniques
(American Society of Civil Engineers, 2007)A cost effective channel section for a specified flow rate, roughness coefficients, longitudinal slope, and various cost parameters can be determined using an optimization technique. However, the derived optimal channel ... -
Closure to “Energy Dissipation on Reinforced Block Ramps” by S. Pagliara and P. Chiavaccini
(American Society of Civil Engineers, 2007) -
Experimental Assessment of the Sprinkler Application Rate for Steep Sloping Fields
(American Society of Civil Engineers, 2007)The Programa para el Manejo del Agua y del Suelo (PROMAS) assists the local farming community in introducing new types of locally available irrigation equipment that are both inexpensive and water efficient. Field experiments ... -
Simple Equations for Aquifer Parameters from Drawdowns in Large-Diameter Wells
(American Society of Civil Engineers, 2007)Simple equations are proposed for estimating storage coefficient and transmissivity of an aquifer from drawdowns in large- diameter wells. The proposed method requires determination of the peak and time to peak of a unimodal ... -
Field Survey of Permeable Pavement Surface Infiltration Rates
(American Society of Civil Engineers, 2007)The surface infiltration rates of 40 permeable pavement sites were tested in North Carolina, Maryland, Virginia, and Delaware. Two surface infiltration tests (pre- and postmaintenance) were performed on 15 concrete grid ... -
Stream Bank Erosion: In Situ Flume Tests
(American Society of Civil Engineers, 2007)A new technique for testing the erodibility of cohesive stream banks using an in situ flume is presented. The erosion rate is estimated from direct measurements of bed surface elevations by acoustic sensors. The sediment ...