Investigating The Trend of Temperature Changes in Shiraz Synoptic Station Using Man Kendal Method

Issue of climate change, global warming and the consequences tend to be the owners of the thoughts of statesmen and politicians around the world has attracted. To review the annual extreme temperature was used 42 years data from Shiraz synoptic station for the period 1971-2012. The global mean temperature anomalies data that ranged from 1990 to 2012 was used to examine the relationship between extreme temperatures and global warming. Statistical methods for linear regression and Man– Kendal were used for significant test for the trend of changes in the temperature series. Results indicate that despite the lack of long-term trend, after the onset of began the cold phenomenon, absolute minimum temperature gradient descending declining in Shiraz. Shiraz absolute annual maximum daily temperature is rising upward gradient, indicating a gradual increase in maximum temperatures and extreme heat of the summer.