Homogeneity and trend analysis of some meteorological data of Karataş Station in Seyhan Basin

Abstract

: In this study, maximum-minimum-average temperature, maximumminimum-average relative humidity and total-maximum precipitation data covering the years 1965-2016 belonging to Karataş meteorological observation station numbered 17981 in the Seyhan Basin, one of the important basins of Turkey, were used. These data were subjected to homogeneity tests (Pettit Test, Standard Normal Homogeneity Test, Buishand Rank Test, Von Neumann Rank Test) and trend analyzes (Mann Kendall, Sen Innovative Trend Test and Mann Kendall Rank Correlation Test). The results obtained by homogeneity and trend tests were evaluated at the 95% confidence level. According to the results of the 4 homogeneity tests used, Ptotal, Pmax and RHmax parameters are homogeneous and the other parameters are not homogeneous. According to the results obtained, there was a significant increase in Tmin and Tmean, and a significant decrease trend in RHmin and RHmax. The trends obtained in other parameters are not statistically significant.