Journal of Anatolian Environmental and Animal Sciences, vol.4, no.3, pp.435-440, 2019 (Other Refereed National Journals)
The impact of climate change on meteorological data and water resources is one of the subjects of interest in both hydrology
and meteorology. The change in meteorological occurrences due to the atmospheric circulation of climate is an important factor in the design of
water structures and water management issues. In this study, trend analysis was performed by using monthly average current values taken from
three different current observation stations in Kızılırmak basin and the presence of meaningful trend was investigated. Mann Kendall (MK) and
Modified Mann Kendall (Hamed) and Spearman's Rho (SRHO) methods are the non-parametric methods used in trend analysis of basin flows.
The linear regression method, which is a parametric method, is also included in the study of trend. Pettit method was used to determine the
beginning of the trend. The mean monthly flow data between the years of 1970 and 2010 were taken from 15-03, 15-68 and 15-208 stations
analyzed and as a result an increasing trend in 15-68 stations and a decreasing trend was determined in 15-208 and 15-03 stations. According to
the Pettit test, the beginning of the increase trend in flow at station 15-68 is September 1986. And the beginning of the decrease in the 15-208
station was in April 1989 and the beginning of the decrease in the 15-03 stations took place in 1999-September.