ظاهرة التذبذب القطبي (Arctic Oscillation)‎ و علاقتها بأمطار العراق

Abstract EN

The study aim to study and analyze the correlation between the frequency of polar oscillation and rainfall of Iraq during the period 1960-2017 through the simple correlation formula (Pearson) within the formula of the simple linear regression coefficient and the correlation coefficient of the correlation monthly and seasonally.

The results showed a negative correlation between all months of the rainy season From the month of October to May and did not record any statistical significance does not exceed the stations of the study area in two stations Khanaqin October and November during of November and wet of February , .

The linear relationship between the frequency of the index values of polar oscillation and the quantities of seasonal precipitation showed a clear trend of low rainfall with higher values of the indicator due to the change in the air cycle due to climate change and the lack of progress of cold polar air towards the northern latitudes, indicating the weak role of polar influences on Iraq climate and influence control Orbital systems on the air that cause more precipitation than those of the central displays.