Exploring the spatial distribution and intensity of Urban Heat Islands (UHI) in Ardabil city

Abstract

The first purpose of this paper was, calculating land surface temperature (LST) and exploring the spatial distribution of UHI in Ardabil city which was investigated using Land sat 8 OLI/TIRS images for summer and winter of 2019. The second purpose was exploring the thermal effects of Shourabil Lake on surrounding area. The results showed, high temperature is most widespread in suburban areas especially in south, south west, west and north west rather than central parts of the city. Also, the results showed the maximum average temperature in imaging time of winter was 18 ºC, recorded from industrial areas and the maximum average temperature in imaging time of summer was 27 ºC recorded from military and Festival site. The average temperature of water body in summer and winter were 17 ºC and 16 ºC respectively. According to the results thermal effects of the Shourabil lake was limited to 200m, the resultant correlation model for LST and distance to lake based on the calculated R (0.896, 0.988, 0.950) demonstrate a strong correlation, notably the regression could estimate the thermal variation around the lake in this distance.