The study of climatic parameters of the station during the years 1951 to 2005

Climate change and global warming are great environmental challenge facing the world, as many research have been devoted to this issue subject is of high importance due to its environmental, economical and social impacts, the human activities such as agriculture in climate. With respect the importance of this issue climate change of Esfahan area was considered from 1951 until 2005 using metrological data. The changing rate in temperature, precipitation and relative moisture were analyzed using liner regression. The results showed that the average of maximum and minimum temperature of the area has increased during 54 past years. The umbrothermic diagrams of the last five decades showed an increase in dry months. Generally, it was concluded that maximum and minimum of the temperature has been increased during last 54 years and the precipitation had no change as well as a clear decrease in humidity. Also, the number of dry month has increased and the climate of the area has been drier.