Analysis of vegetated areas and of the surface temperature of Jundiaí – SP

Abstract

Given the trends of urban population growth in Brazil and in the world, of the acceleration of urbanization processes, and of the climate reality, it is necessary to debate on how to reverse or to mitigate the negative impacts emerged from urban development, which are aggravated by the inadequate planning. Vegetation supression can be decisive in generating an urban overheating and may lead to problems that threaten the population’s well-being. This work aims to understand the relationship between the existance of vegetated areas and the surface temperature of Jundiaí-SP. Remote sensing tools were used to produce maps of the city’s land use and occupation and of the city’s surface temperature. The average surface temperature of areas with dense vegetation was found to be 4.56°C lower than the average surface temperature of urbanized areas in the summer of 2020. The locations with the highest temperatures of the city are correlated with the presence of industrial or commercial warehouses. Vegetated areas adjacent to these locations had temperatures up to 18°C lower in summer. The importance of elaborating and regulating tools which promotes more intensely the arborization of urban areas at a municipal level stands out.