Validation of winsrfr for some hydraulic parameters of furrow irrigation in egypt

Surface irrigation is considered as the most common and important irrigation systems in Egypt, and as one of the most extensive methods used for irrigation in the Nile Delta and the old valley, Egypt. Well designed and managed furrow irrigated systems have the potential to operate at application efficiencies above 90 %. WinSRFR is a new generation of software for analyzing surface irrigation systems (basin, border, and furrow). Founded on an unsteady flow hydraulic model, the software integrates event analysis, simulation, design, and operational analysis functionalities. This is study aimed to validate WinSRFR simulation model as a prediction tool of the furrow irrigation performance under the Egyptian conditions using different furrow lengths and slopes. This work has been carried out at Private farm in Damanhur, El-Beheira Governorate, Egypt to represent the old alluvial soil of the Nile Delta (clay loam). Results revealed that the statistical indicators of R (> 0.9), SE (nearest to 0), d (> 0.9), and E were used for the comparison between measured and simulated advance time, recession time, and DU. These indicators were high satisfactory to use the software under the Egyptian conditions for furrow irrigation. Generally the results were sufficiently acceptable to fulfill the objective of this work, this was confirmed by the good agreement between the simulated and measured advance time, recessions time, and DU. Also, Using the infiltration function of modified kostiakov formula in the WinSRFR Simulation World was more adequate than using kostiakov formula in the most run cases.