Kayhanlar, Göknur Elif YarbaşıMartı, Ali İhsan2024-12-112024-12-112023978-605-9678-36-0https://hdl.handle.net/20.500.13091/9762Pressure fluctuations are seasonal climate anomalies occurring due to atmospheric events. Precipitation data is one of the parameters that show the most variability among the climate parameters. Within this context, the mechanisms controlling Southern Oscillation (SO) by evaluating the precipitation parameters will also assist to understand the systems controlling climate change on the world. Therefore, the homogeneity and trend analyses on the precipitation data of No. 17020, 17022, 17026, 17070, 17070 precipitation observation stations at the basin of Western Black Sea were compared with the extreme phases of Oceanic (O 1LxRIndex table and the effects on the region were investigated in the study. Standard Normal Homogeneity, Buishand and Pettitt tests were the homogeneity methods, and Mann Kendall, Spearman Rho, Modified Mann Kendall, and Sen's T were the trend methods applied on the aforementioned precipitation data. Then the starting years of statistically significant changes were determined by Mann Kendall Rank Correlation test. As a conclusion, it was obtained that the high index values of SO became effective where the homogeneity of the datasets deteriorated and there was a significant trend.eninfo:eu-repo/semantics/openAccessWestern Black SeaSouthern OscillationHomogeneity AnalysisTrend AnalysisPrecipitationConference Object