Abstract: A stepwise multilevel scheme is developed to sequentially calibrate infiltration and roughness parameters for free-draining furrow irrigation systems. The scheme is one dimensional at each level, thereby simplifying ...

Abstract: Rational evaluation of surface irrigation systems should consider the effects of spatial variations in soil intake properties on advance trajectories and on the uniformity of infiltrated depths. The objective was to quantify ...

Abstract: Simulation of aggregate water demands by areas commanded by canal and lateral turnouts is an important input to the operation and management of the irrigation delivery system. A computer simulation model to predict these ...

Abstract: The cumulative water demand (CWD) curve was used for validating and calibrating the unit command area (UCA) model, which predicts the aggregate water demands of individual command areas for the entire crop season. During ...

Abstract: A kinematic‐wave model of furrow irrigation under both continuous and surged flow management was developed and verified. Numerical solution of the differential continuity equation is accomplished with a Eulerian first‐order ...

Abstract: An analysis to determine infiltration parameters from the early stages of furrow advance is reported. The analysis uses a kinematic‐wave simulation model in conjunction with a simplex search procedure to minimize the ...

Abstract: Modernization of today’s irrigation systems attempts to improve system efficiency and management effectiveness of every component of the system (reservoirs, canals, and gates) using automation technologies, along with ...

Abstract: Evapotranspiration (ET) is an important component of the hydrologic cycle, especially for irrigated agriculture. Direct methods of estimating reference ET are difficult or require many weather variables that are not always ...