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SEASONAL DISTRIBUTION OF COMFORTABILITY: A REGIONAL BASED STUDY OVER KALYANI, WEST BENGAL, INDIA

R. Bhattacharya, S. Pal, G. Biswas, S. Karmakar, G. Saha

Seasonal changes of weather parameters are the factors in urban environments which affect thermal comfort. It was reported that solar radiation may change the ambient temperature upto 4°C. Annual variation of temeprature and global radiation follow similar pattern. Object of our work is to point out the seasonal distribution of thermal stress over Kalyani. Thermohygrometric index, Wet bulb globe temperature and Relative strain index are estimated for the period 1994 to 2012 with some data gap. WBGT and RSI are widely used for outdoor workers. A regional based scale of WBGT and RSI are developed with reference to THI over Kalyani. However an integrated approach including the behavioral adjustment and clothing insulation of a person along with other parameters to compute stress indices may give better results to identify zone of thermal comfort.