Trend analysis of maximum-minimum temperature in the Çoruh basin

In this study, it is aimed to make homogeneity and trend analysis of maximum and minimum temperature data of Çoruh Basin, which is one of the important large basins of Turkey. For this purpose, the minimum and maximum temperature data of the Bayburt, İspir, Tortum and Artvin meteorological stations between 1965 and 2020 were used within the scope of the study. Firstly, homogeneity analyzes of minimum and maximum temperature data were performed with Standard Normal Homogeneity Test (SNHT), Buishand and Petitt tests, which are widely used in the literature. According to the results of homogeneity tests, non-homogeneity cases were determined especially in the maximum temperature data of Bayburt, İspir and Tortum stations. Then, trend analyzes of the maximum and temperature data were made with the help of the non-parametric Mann Kendall trend test. According to the Mann-Kendall trend test results, while there are statistically significant trends in the Spring and Summer seasons of Bayburt and in the Summer season of Artvin, significant positive trends were detected in the maximum temperature data of Bayburt, İspir and Tortum stations at the 95% confidence interval in the Spring and Summer seasons. has been done. Significant trends were observed to be even greater especially in the upper part of the Çoruh basin