Akademik Veri Yönetim Sistemi
JOURNAL OF AGRICULTURAL SCIENCES-TARIM BILIMLERI DERGISI, cilt.13, sa.4, ss.337-345, 2007 (SCI-Expanded, TRDizin)
Water resources limitation, aim variety and financial sources inadequacy make the managing of optimum releasing to be a great necessity. The undesired temporal and spatial distribution of rainfall, strategic situation of agricultural crops and complicated systems of water resources all are caused the application of mathematical models to be a necessity. On the other hand the stochastic property of inflow to the reservoir system makes the forecast of operation rules in reservoirs to have great importance for irrigation of farmlands. The aim of simulation technique is to predict a behavior of reservoir system in future operation periods. Decision makers make a good management for system operation by application of different scenarios. Savalan dam reservoir with 90 hm(3) active capacity was constructed to irrigate 1200 ha agricultural lands in Ardabil province. The monthly water demand of down stream agricultural lands assumed to be supplied perfectly. In this research to along dam reservoir operation forecast namely storage value, spill, evaporation and precipitation over reservoir lake the multi-layer feed forward back propagation ANN method used for simulation of reservoir inflow. The reservoir continuity equation was solved for both cases historical flow and simulated one for the purpose of reservoir parameters calculation parameters obtained from both cases of inflow were compared. The results showed the best consistency observed and calculated parameters.