Relationship between The climatic index (NAO) with average, maximum and minimum of monthy temperature in northwest of Iran

In this study, the relationship of index oscillations of sea level pressure in North Atlantic with average, minimum and maximum of monthy temperature in northwest of Iran has been analyzed in the period from 1987 to 2005. The method used in this study is analytical statistics using correlation factors and analyzing the border polynomial trend components. Also by means of derived classified zoning map, the correlation rate of NAO Index with temperatures determined spatially. Results of this studies show that NAO phenomenon has a negative correlation with temperature in all stations. Obtained correlation factors show a weak effect to relatively modest of NAO in region's temperatures. The maximum and minimum correlation rates of NAO index observed to be with monthy average temperatures and minimum monthy temperatures respectively. The maximum correlation factor in every three, average, minimum and maximum temperature with NAO index, is related to station of Ardabil province. Pendulous model of the polynomial flow in two definite waves confirms the existence of negative correlation between NAO and temperatures in northwest of Iran.