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Time Trend In The Mean Annual Temperature Of Iran, Bijan Ghahraman
Time Trend In The Mean Annual Temperature Of Iran, Bijan Ghahraman
Turkish Journal of Agriculture and Forestry
Many researchers around the world have reported a gradual increase in mean annual temperature. Yet, there are some reports of a reduction in this parameter. In this study, we investigated the long-term trend of mean annual temperature at 34 synoptic stations in Iran (2 stations in cool humid climates, 14 stations in temperate humid climates, 11 stations in steppe climates, and 7 stations in desert climates, based on the Koppen climatic division) with a minimum record of 30 years by Student's t-test. Results showed that there was a positive trend in 50% of the stations, while 41% of stations had …