Assessment of bioclimatic comfort of the territories of Krasnoyarsk region by the thermal comfort index

Abstract

Various bioclimatic indices assess the influence of physical factors in cold or hot climates. The Thermal Comfort Index (UTCI) measures health risk in the ranges from heat-temperature to cold stress. The bioclimatic comfort of the habitat in the subarctic and temperate climate of the Krasnoyarsk Territory was assessed during the periods of determining climatic norms (1961–1990 and 1991–2020). The neutral temperature in a temperate climate was determined for 1 and 2 months, respectively. per year (third month — transitional). Mild cold stress was detected only for 1 month. In August and May, UTCI values indicated warming and a less significant risk of body cooling. The duration of the period of moderate cold stress remained the same: 3 months each. The duration of periods of severe cold stress began to differ by 1 month. In the subarctic, health risks ranging from mild to extreme cold stress have been reported. The same regularity was determined: in general, warming, and by months — the transition according to gradations of degrees of risk to a less significant one. In the subarctic, climate warming was determined within 8 months, in the temperate zone — 9 months. The temperature rise was determined, respectively, by 4.0–9.7 0 С and 1.4–7.1 0 С. In a temperate climate, neutral weather conditions were recorded for periods of 1 and 2–3 months, uncomfortable, respectively 11 months. and 9–10 months. In the subarctic, living conditions are only uncomfortable. The degree of health risk decreased: in a temperate climate in the spring months and August (4 months), in a subarctic climate — in March, April, June, February and October (5 months). Health risk in the form in a temperate climate in the form of mild, moderate and severe cold stress, in the subarctic, in addition, very strong and extreme stress.