Spatio-temporal Assessment of Climatic Comfort in Hamedan Province Using Physiologically Equivalent Temperature (PET) and Nervous Stress Indices

Climate conditions is one of the most important and affecting factors on different aspects of life, especially the health and human comfort. In this study, using bioclimatic and Tourism indices including; Physiological Equivalent Temperature (PET) and Nervous Stress, climatic comfort of Hamedan province is evaluated. For each of the indicators, were used climatic parameters of the 9 meteorological stations in the province in 14-year period (2014- 2001). Then, different areas of the province have been evaluated in terms of above bioclimatic indices.
The results show that different areas of the province have a large variety of climatic comfort during the year. Based on PET, in May (Malayer, Nahavand, Tuyserkan, Razan, Ghahavand and Famenin Stations), in September (Hamadan station) and in October (Asadabad, Famenin and Ghahavand) are under optimum climate conditions, and "non stress". Also, based on the Nervous Stress index; in June, Hamedan and Famenin stations and in July, all stations are in "warm and comfortable" condition. In August; Hamedan, Malayer, Nahavand and Razan stations are in "Comfortable" and the rest of the stations are in "warm and comfortable". In September; all stations are in the "cool" condition.
In general, according to the above indicators examined in terms of climatic comfort, the best time in the province are May, September and October respectively. However, based on Nervous Stress index, comfort conditions provides only in August. During this period, in addition to the optimal climatic comfort, natural beauty across the province is also very favorable.