The Characterics of Precipitation and Flows in Tokat-Zile Akdoğan Basin

In this study; the result of hydrologic research obtained from tokat – zile akdoğan watershed of 7.376 sq.km area presented for the period of 1987-2011. in the watershed has three pluviograph and one linnigraph. the sluice locates at the 40°18'02 north latitude and the 35°47'23 east longitude. the average annual precipitation of watershed for the period of 1987-2011 is 495.5 mm, average runoff is 27.07 mm and average water yield is 199668 m3. surface flow, subsurface flow and base flow values of this flow were found to be 9.34 mm, 8.04 mm and 9.69 mm respectively. the average annual coefficient of surface flow was found as 2.55 %. the elements of average unit hydrograph for the watershed were calculated as qp = 1565 l/sec, tb = 3.54 hours and tp = 1.46 hours. the coefficient of snyder's ct and cp , mockus's h and k and m.turc method’s a were calculated as ct=0.32, cp=0.993, k=0.32, h=0.85 and a=689.7 respectively.