شناسايي تيپ هاي همديد هواي ايستگاه خوربيابانك در طول دوره آماري (2004-1985)

Identification of Synoptic Types of Khor Biabanak during 1985-2004

In this research, the data of a few climate variables including wind direction, wind speed, dry temperature, wet temperature, relative humidity and surface pressure for 9 Greenwich mean time as well as the variables of maximum temperature, minimum temperature, total precipitation amount, evaporation rate and sunshine hours have been studied in KHOR BIABANAK Station during 1985-2004. As these eleven variables were completely existent only during 3825 days of the study period, the 2 dimensional matrixes 3825x11 was first standardized and then cluster analyzed. At last 3 types of synoptic weather resulted at the Khor Biabanak Station. These 3 types included spring-autumn, hot-dry summer and low precipitation winter. Key Words: Synoptic Types, Cluster Analysis, Representative Day, Within Group Correlations, Khor Biabanak.