Geo-simulation of land use/cover scenarios and impacts on land surface temperature in Sapporo, Japan

Abstract

Land surface temperature (LST) is receiving increasing attention as a measure of urban health and sustainable development. With rapid urbanization and industrialization, the urban heat island phenomenon, which causes excessive energy consumption and climatic and environmental deterioration, has become prevalent in many cities. It is well known that optimizing land use/cover (LUC) distribution can reduce the urban heat island phenomenon. Therefore, monitoring LUC changes and analyzing their effects on LST is crucial for healthy urban development. In this study, an attempt is made to examine LST and LUC changes in Sapporo, Japan. Using Landsat data, we attempted to analyze the LST in each LUC category from 1985 to 2015. The results show that: (1) LUC types and spatial distribution have great influences on LST, (2) expanding development has been the most significant factor affecting urban heat island phenomenon over the past 30 years, and (3) green space and water areas have helped cool the city. This study revealed a strong relationship between LUC distribution and LST, opening research avenues for future LUC simulation. Our analysis not only contributes to urban health and sustainable development but also provides significant insights into the promotion of city competence.