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To identify the current panorama of theses and dissertations on the theme of urban climate in Geographic Sciences, this article presents the contribution of the Urban Climate System to studies in the Southern Region of Brazil, with a focus on the Subtropical climate. We select theses and dissertations contained in the databases, the Brazilian Digital Library of Theses and Dissertations (BDTD), and to complement it, it was also searched year by year in the Catalog of Theses and Dissertations in Coordination for the Improvement of Higher Education Personnel (CTD - CAPES) in period 2012 to 2022. Tables were created to guide the construction of graphs, maps, and word clouds, in which it was possible to have a quantitative, qualitative, and spatial overview of the studies carried out. The results allow us to observe the growth of research and the importance of urban climate issues, thus, in the thermodynamic subsystem, 169 works were obtained, 117 of which were dissertations, 52 theses. 18 studies were identified, 10 dissertations and 8 theses in the southern region of Brazil. [ABSTRACT FROM AUTHOR]

The urbanization processes from the Industrial Revolution on have intensified and with these changes occur in the natural environment, providing intra-urban thermal differences, affecting the population's quality of life. This article aimed to investigate the phenomenon of heat islands in the urban area of Erechim, in the state of Rio Grande do Sul, during the summer season, with the detailed application of thermal profile analysis based on the characteristics of the urban form. The methodology involved the collection, analysis, and processing of satellite images, as well as the elaboration of maps, calculations, and indices. Thermal profiles were produced that allowed a better local and microscale verification, in which thermal differences were identified in the urban space. The results show that vegetation plays a fundamental role in regulating surface temperature and that impermeable areas or areas with exposed soil suggest that there is a propensity for the formation of heat islands. Finally, the use of thermal profile differs from the transect and opens the possibility of theoretical-methodological discussion of its application, since research of this nature contributes to subsidize urban planning. [ABSTRACT FROM AUTHOR]