Özet:

The aim of this research is to analyse precipitation and investigate drought conditions by using long-term climate data obtained from the General Directorate of Meteorology. Using the data obtained in the study, precipitation analysis was performed using the HydroTSM package in the R program for the 1970-2022 time period of the Çanakkale central meteorological station and drought analysis was performed according to the standard precipitation index method. With the time series obtained because of these analyses, precipitation and drought data for many years were examined. Daily, monthly, annual and seasonal time series of precipitation were generated and it was determined that precipitation fluctuates irregularly according to the data obtained. Drought analyses were calculated at 3, 6, 12, 24, 36-month time intervals. It was determined that Çanakkale province experienced significant dry periods between 1970 and 2022. According to the results, it was determined that arid and mild arid distribution was more predominant, while humid and semi-humid periods were experienced. The years with the highest severity of drought are 1997, 2009 and 2020. In addition, as the time period of the analyses increases, drought severity and total drought periods are almost similar. Fluctuations in the precipitation regime and drought conditions determined for Çanakkale province were evaluated within the framework of agricultural water management and water resources planning.