The Relationship between Synoptic Weather- Types of Khor Biabanak Station with Circulation Patterns of 500 hap

In this Research, eleven Climate variables (wind direction, wind speed, dry temperature, wet temperature, relative humidity and station pressure) have been studied at 09:00 GMT, as well as variables such as maximum temperature, minimum temperature, total precipitation, evaporation rate and sunshine hours in Khor Biabanak Station during 1985–2004. Since these elevenvariables have been completely in action during our 3825 day study, the matrix 3825×11 has been first standardized and then applied a Cluster analysis, so that 3 types (S.A_W.D.S_W.L.R) of synoptic weathers observed at the Khor Biabanak Station. After finding the Statistical features of synoptic types, these types haveexplained, taking the circulatory arrangement of the Middle level atmosphere. Spring and autumn type, communicated with deep trough over Europe and Africa and hat and dry Summery type with Azores high pressure pattern and low rain winter type with deep trough over west Iran.