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1 Jayatilaka, C. J.; Sakthivadivel, R.; Shinogi, Y.; Makin, I. W.; Witharana, P.. 2001. Predicting water availability in irrigation tank cascade systems: the cascade water balance model. Colombo, Sri Lanka: International Water Management Institute (IWMI). v, 41p. (IWMI Research Report 048) [doi: https://doi.org/10.3910/2009.055]
Water management ; Irrigation systems ; Tank irrigation ; Calibrations ; Water balance ; Simulation models ; Mathematical models ; Irrigation requirements ; Rainfall-runoff relationships ; Catchment areas ; Evaporation ; Seepage ; Percolation ; Water use efficiency ; Water availability ; Forecasting ; Indicators / Sri Lanka / Anuradhapura / Thirappane Tank / Vendarankulama Tank / Bulankulama Tank / Meegassagama Tank / Alisthana Tank
(Location: IWMI-HQ Call no: IWMI 631.7.1 G744 JAY Record No: H027839)
(3.89MB)
Better water management in irrigation tank cascade systems is vital in achieving higher productive use of available water. To develop and implement management practices aimed at improving effective use of water, studies leading to the development of models that can predict available tank water in irrigation tank cascade systems are invaluable. This report presents a simple water balance model, Cascade, developed to predict tank water availability in the Thirappane tank cascade system in Anuradhapura, Sri Lanka. The report includes calibration of the model and its application to predict tank water availability for rice crops over a 10-year period.
2 Jayatilaka, C. J.; Sakthivadivel, R.; Shinogi, Y.; Makin, I. W.; Witharana, P.. 2003. A simple water balance modelling approach for determining water availability in an irrigation tank cascade system. Journal of Hydrology, 273:81-102.
Water balance ; Simulation models ; Calibration ; Tank irrigation ; Water availability ; Water storage ; Seepage ; Percolation ; Rainfall-runoff relationships / Sri Lanka / Anuradhapura / Thirappane Tank Cascade
(Location: IWMI-HQ Call no: IWMI 631.7.1 G744 JAY Record No: H031438)
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