Ardavan Behzad, Mohammad Reza Sarvati, Ebrahim Moghimi
Flood is a phenomenon which causes large damages annually and it has been always considered by hydrologists. Factors such as physiography, geomorphology and human factors that can cause acceleration of this phenomenon in the basins; since the exploitation of water resources projects, flood control, dam construction, operation, and most areas of Watershed Hydrology, flood flow is important. The degree of accuracy and safety studies, facility design and construction of water, depends heavily on the research method. In the present study the potential of Tarik flood basin has been studied using the SCS. Hydrograph of the basin according to rainfall amounts of 24- hour, time of concentration, curve number, rainfall excess, time to peak and peak, respectively, then the flood hydrograph for the basin in the Tarik periods of 2, 5, 10, 25, 50 and 100 years were calculated. The results showed that in terms of form , Tarik basin flood rise can not be because the basin is considered to be stretched, but this basin, the basin is a narrow, short channel length and minor runoffs of rainfall in a short time to reach the main drainage fill and drainage work. The area, part of the basin is considered to be small, so its reaction to short-term rainfall into flood will be greater.
