Monthly bioclimatic zoning of Chahar Mahal va Bakhtiyari province

The present article aims to review the overall appearance of Chahar Mahal va Bakhtiyari bio climate and the influence of climatic parameters on human comfort using Terjang method. The aforementioned element is applicable in many different fields, such as urban engineering, medical science, architecture, tourism, etc. In order to reach this goal, we prepared bioclimatic zoning maps on a monthly scale using Terjang zoning method and applying parameters of temperature, relative humidity, sunshine and wind hours across 8 synoptic and climatologic stations in a 50 year period (1958-2007). To produce these maps using Terjang method, we applied statistical-graphical software, elevation gradient, and especially buffering soft wares such as Arcgis 9.2, Autocad map. Data analysis in the specified period detected monthly bio climates in Chahar Mahal va Bakhtiyari province. So that in February, just one bio climatic area (k2) is sensible across the province due to external climatic elements’ domination, while in April combined influences of external and local elements creates three bio climatic types (4W, 3M, 2C) and the influence of local elements creates two bio climates in summer (4W, 5H). In December, influential elements change and monthly bio climates return to just one bio climate (2k, very cool with cold nights -2/-3).