Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 2321-2340 of 3826
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Assessment of Time of Concentration Formulas for Overland Flow
(American Society of Civil Engineers, 2005)Despite the importance of overland time of concentration on the design discharge, engineers are often bewildered by the array of formulas available in the literature without knowing the accuracy of each formula. This ... -
Discussion of “Predicting Daily Net Radiation Using Minimum Climatological Data” by S. Irmak, A. Irmak, J. W. Jones, T. A. Howell, J. M. Jacobs, R. G. Allen, and G. Hoogenboom
(American Society of Civil Engineers, 2005) -
Uniform and Critical Flow Computations
(American Society of Civil Engineers, 2005)The application of theory developed for direct integration of gradually varied flow equations to uniform and critical flow computation greatly reduces the computational effort. A small generalized subroutine is able to ... -
Comparison of Water Distribution Uniformities between Increased-Discharge and Continuous-Flow Irrigations in Blocked-End Furrows
(American Society of Civil Engineers, 2005)A comparative analysis of the distribution uniformities of infiltrated water depth in blocked end furrows between three irrigations with increased-discharge (IDI) and three irrigations with constant flow rate (CFI) is ... -
Closure on “Predicting Daily Net Radiation using Minimum Climatological Data” by S. Irmak, A. Irmak, J. W. Jones, T. A. Howell, J. M. Jacobs, R. G. Allen, and G. Hoogenboom
(American Society of Civil Engineers, 2005) -
Water Management of Irrigated-Drained Fields in the Jordan Valley South of Lake Kinneret
(American Society of Civil Engineers, 2005)The Jordan Valley is one of the primary regions for growing winter crops of fruit and vegetables in Israel and Jordan. Control of water management in these fields is obtained by solid-set irrigation systems and subsurface ... -
Discussion of “Forecasting of Reference Evapotranspiration by Artificial Neural Networks” by Slavisa Trajkovic, Branimir Todorovic, and Miomir Stankovic
(American Society of Civil Engineers, 2005) -
Analysis of Residential Irrigation Distribution Uniformity
(American Society of Civil Engineers, 2005)Irrigation has become commonplace for residential homeowners desiring high quality landscapes in Florida. The goal of this project was to document irrigation system uniformity in Central Florida and to quantify distribution ... -
Modified Hazen–Williams and Darcy–Weisbach Equations for Friction and Local Head Losses along Irrigation Laterals
(American Society of Civil Engineers, 2005)In previous analytical approaches, the direct calculation of friction loss along a lateral is usually based on empirical power-form flow resistance equations, such as the Hazen–Williams and Blasius equations. The more ... -
Discussion of “Allocation of Scarce Water Resources Using Deficit Irrigation in Rotational Systems” by S. D. Gorantiwar and I. K. Smout
(American Society of Civil Engineers, 2005) -
Predicting Soil Salinity under Various Strategies in Irrigation Systems
(American Society of Civil Engineers, 2005)This paper presents a model to estimate the soil salinity for different on-farm management strategies under irrigated conditions. It is based on research in the Maniçoba irrigation scheme in northeast Brazil, where upward ... -
Infiltration under Variable Ponding Depths of Water
(American Society of Civil Engineers, 2005)Cumulative infiltration was computed as a function of time-varying ponded water depths using a Green and Ampt analysis. The input water depths were field-measured values from two irrigation events on Superstition sand, one ... -
Discussion of “Direct Equations for Hydraulic Jump Elements in Rectangular Horizontal Channel” by Sri Ram Chaurasia
(American Society of Civil Engineers, 2005) -
Hydrodynamic Modeling Approaches for Agricultural Storm Water Impoundments
(American Society of Civil Engineers, 2005)Hydrologic modeling of storm water impoundments is an effective tool in evaluating different water management options for addressing regional water issues in Florida. However, modeling impoundment water dynamics could be ... -
Temperature-Based Approaches for Estimating Reference Evapotranspiration
(American Society of Civil Engineers, 2005)The Food and Agriculture Organization of the United Nations (FAO) has proposed using the Penman–Monteith (FAO-56 PM) method as the standard method for estimating reference evapotranspiration -
Simulation of Automatic Canal Control Systems
(American Society of Civil Engineers, 2005)Simulation models for unsteady open channel flows have been commercially available for more than 2 decades. Most of these models are now available for personal computers and can be used to study the control of irrigation ... -
Closure to “Explicit Hydraulic Design of Microirrigation Submain Units with Tapered Manifold and Laterals” by John D. Valiantzas
(American Society of Civil Engineers, 2005) -
Closure to “Analytical Equation for Variation of Discharge in Drip Irrigation Laterals,” by V. Ravikumar, C. R. Ranganathan, and S. Santhana Bosu
(American Society of Civil Engineers, 2005) -
Data Reconciliation on the Complex Hydraulic System of Canal de Provence
(American Society of Civil Engineers, 2005)A data reconciliation module, based on the measurements from the hydraulic network, has been recently developed and implemented in the supervisory system of the Société du Canal de Provence (SCP). The software has initially ... -
Statistical Guidelines for Curve Number Generation
(American Society of Civil Engineers, 2005)The accuracy of runoff curve numbers (CNs) is unknown, and empirical evidence has suggested that with the current CN table, hydrological systems are being over designed—which some believe is due to a variable known as the ...