Assessment of the effect of land use change on bioclimatic comfort conditions in U?ak Province

Bioclimatic comfort is the state of people in which they feel comfortable, happy, and fit atmospheric environment are. The bioclimatic conditions cities have changed depending on anthropogenic factors. aim this study to compare U?ak city between 1990 2018. In first stage, centre 2018 were determined according Physiological Equivalent Temperature (PET) index obtained from RayMan model by using hourly data meteorological station centre; air temperature (°C), relative humidity (%), wind velocity(m/s) cloudiness (octa). By Geographic Information Systems spatial distribution conditions, calculations made with base maps elevation, land use, solar radiation, mean radiant (MRT), speed. second cover was classified general appearance for period covering 28 years (from 2018), rates change calculated. As a result, it that most comfortable areas are agricultural areas, followed forest natural uncomfortable artificial areas. Intense urbanization construction increased city. It thought plans be prioritizing will contribute decelerating climate caused global warming, as well improving existing problems.