تحلیل آماری درازمدت برخی مشخصه‌های بارش در دو ایستگاه سینوپتیک سنندج و سقز

The aim of the present study is to statistically analyze some precipitation-based indices during the statistical period of 1962-2023 at two synoptic stations, Sanandaj and Saqqez. For this purpose, 15 indices based on daily precipitation data for these two stations were extracted, and by employing the t-student mean comparison test method during the two statistical periods of 1962-1992 and 1993-2023, as well as the Kendall method for analyzing the long-term trends of these indices during the period 1962-2023, it was evaluated whether the precipitation indices at the above stations have undergone significant changes during the period of 1962-2023 or not. The results for both stations showed that the use of both statistical methods led to the detection of changes in the means and significant trends as well in some precipitation indices based on the seasonal distribution of precipitation and the amount of precipitation. The results also indicated that the Sanandaj station has experienced more changes compared to the Saqqez station.