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    STUDIA AMBIENTUM - Ediţia nr.1-2 din 2008  
         
  Articol:   AIR TEMPERATURE TRENDS IN CLUJ-NAPOCA (1978-2007).

Autori:  SANDU-VALER TAHÂȘ, CONSTANTIN COSMA, DUMITRU RISTOIU. 		 
       
         
  Rezumat:  Cluj-Napoca has a moderate continental climate, characterized by hot dry summers and cold winters. The climate is influenced by the city''''s proximity to the Apuseni Mountains and some West-Atlantic influences that are present during winter and autumn. This paper investigates air temperature trends in Cluj-Napoca and the data set is represented by time series at Cluj-Napoca airport station. The period analyzed is 1978-2007 for all seasons. The short-term change in temperature has been evaluated by t-Test and linear trend. The analysis reveals significant increase in mean annual and mean maximum temperature and slight decrease in mean minimum temperature. This increase in temperature is more pronounced during the summer season, which could be ascribed to solar variations, natural climate change or urbanization of this town.

Keywords: Urbanization, temperatures, t-test rank statistics, warming trend, significance levels 		 
         
     
         
         
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