Inversion and Variation Analysis of Urban Surface Temperature based on Landsat 8 Data

Abstract

In order to study the change of urban surface temperature, the urban heat island effect was studied. Taking Changqing District of Jinan City as the research object, Landsat 8 images from 2013 and 2019 in the research area were used, and remote sensing technology was combined with the spectral characteristics of remote sensing images to retrieve the surface temperature in Changqing District and analyse its surface temperature change. The research results show that the temperature in the urban area is relatively high, and the surface temperature in Changqing District in 2019 showed a significant upward trend compared to 2013. Further analysis indicates that there is a heat island effect in Changqing District, and relative departments can adopt measures such as increasing urban green area and water volume to alleviate the urban heat island effect and thermal environmental problems.