Document Type : Original Article

Authors

• Akbar Rahimi ¹
• Firouz Aghazadeh ²
• Hashem Rostamzadeh ³

¹ Associate Professor, Ph.D., Department of Urban and Regional Planning, Faculty of Planning and Environmental Sciences, Tabriz University

² -MSc, Department of remote sensing and GIS, Faculty of Planning and Environmental Sciences, University of Tabriz

³ Associate Prof Department of Meteorology Department of and Plannin of Tabriz

Abstract

The aim of this research is to investigate the relationship between urban surface heat islands and air pollutants in Tabriz metropolis. Landsat 8 and 9 images were used to calculate land surface temperature (LST) and urban surface heat islands (SUHI) from Sentinel 5p images for air pollutants in 2023 in spring and summer. The results showed that the value of LST and SUHI in the studied area was in the range of 9.75 to 46.57, -20.48 and 9.07 degrees Celsius, respectively, and the value of SUHI was higher in spring than in summer. is The results of air pollutants, aerosol absorption index (AAI), carbon monoxide (CO), nitrogen dioxide (NO2), sulfur dioxide (SO2) and ozone (O3) showed that the concentration of pollutants in the central parts South, southwest of the study area has been dense. The statistical relationship between air pollutants and SUHI shows a weak inverse relationship between these two variables with R2 equal to 0.003 to 0.14. Also, ANOVA analysis showed that the high value of F statistic (between 40.3 and 65.56) and the low significance level of P_value at 0.000 can be said that there is a significant relationship between these two variables. The high number of T statistic also indicates the significance of these two variables. The Pearson correlation results showed that the correlation of NO2 with SUHI with R equal to -0.37 and -0.42 in spring and summer, respectively, was higher than other pollutants.

Keywords

• Urban heat islands (SUHI)"
• "air pollutants"
• " multivariate regression"
• " Pearson correlation"
• "Tabriz metropolis

Main Subjects

• Geography and Urban Planning