investigation of temperature change trend of Urmia synoptic station by Menandal

The issue of climate change and the tendency of global warming and its consequences, in addition to scholars, has attracted the thoughts of government men and politicians around the world. Climate is one of the most important components of the ecosystem and parameters Climate Temperature and precipitation are sensitive to climate change. Therefore, examining the trend in such variables can help in identifying climate change in the region. In order to study and detect climate change, the study of a number of climatic parameters has a higher priority than other parameters. The aim of this study was to investigate the trend of annual temperature changes in Urmia synoptic station by Mankendal test in a statistical period of 15 years with a time interval (1996-2010 in Sinotec meteorological station of Urmia. Statistical method of linear regression and Fan Kendall statistic for hair Significance of trend of temperature and precipitation series changes was used.The results show that the lack of temperature trend in Urmia has decreased with a downward slope and the lack of synchronous rainfall trend of Urmia with rising valve is increasing.