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Classification of Air Masses in Urmiah by Cluster Analysis and Quality Control Inter Group's Variance Indices
Ì'UlÅ«m va muhandisÄ«-i Ä?byÄ?rÄ«
In order to dong this study, daily data of 34 meteorological variables during 1/1/1961 to 30/6/2013 from Urmiah synoptic station has been used. Cluster Analysis with Ward method applied on the Euclidean distance. The numbers of clusters determined by quality control inter group's variance Indices. The results show that clustering air mass to seven groups is the optimum. The second air mass is the most rainiest air mass which its rainy occurrence probability equal to 65.7% and the amount ofdoi:10.22055/jise.2017.13178 doaj:0587adcf689e4712a33d7475ef50ca3d fatcat:wh7pr3uonzhnpepu27jjrjc5oi