Abstract

The purpose of this study is to prediction the monthly average of maximum and minimum temperature of the holy city of Najaf for next eleven years (2011-2021), by using the Liner Trend analysis to reveal the nature of the periodic behavior pattern of the monthly average temperature via a series of long time extending from December 1971 to January 2010 (480 months), then hire it to get a model of directional linear regression to predict the average temperature monthly. The results showed that there are different values of the climate cycle and varied from month to month, it has been shown that there is a trend toward rising rates of heat and that so important for climate change study and desertification phenomenon.