O clima urbano em cidade de pequeno porte no semiárido cearense: o caso de Crateús

• Ano de defesa: 2020
• Autor(a) principal: Oliveira, Jorge Ricardo Felix de
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Palavras-chave em Português: Cidades pequenas; Clima urbano; Semiárido; Perfil térmico; Conforto
• Link de acesso: http://www.repositorio.ufc.br/handle/riufc/56992

Indeed, the urban climate can be understood as the climate of a given space and its urbanization, with no rigid scale to detect this phenomenon. In this sense, small cities show considerable changes in their environmental conditions in the face of urbanization and show relative facilities for a climate investigation, as their reduced spatial size allows for a better differentiation of their intra-urban environments. In addition, these places have possibilities for intervention and urban planning in the new expanding spaces. This research aimed to investigate the urban climate of a city, in a semi-arid environment, located in the hinterland of Ceará (Crateús / CE) from the thermal point of view. It starts from the hypothesis that the analyzed city, even being small, already presents changes in the thermal characteristics, since the geoecological attributes (relief and vegetation cover) and urban (use and occupation of the soil, structure, shapes and the urban dynamics) already demonstrate the changes in its surface due to urbanization. The theoretical and methodological basis of this research is based on the proposed Urban Climate System (MONTEIRO, 1976), with emphasis on the thermodynamic subsystem that is perceived by man through thermal comfort. The geoecological and urban characterization of the city made it possible to differentiate intra-urban environments prior to the acquisition of primary data by local measurements in homes and mobile transect, which were represented through tables and spatial representation. Secondary data, in the form of surface thermographic spatialization and the vegetation index adapted to semiarid conditions (SAVI), were related to the proximity of water resources and exposure to the crystalline basement. The results made it possible to detect thermal differences in inter and intra-urban areas, based on indoor and outdoor environments. The research diagnosed a specific urban climate in the city, validating the research hypothesis. However, it was found that during the morning the adjacent rural areas, where there is vegetation in deciduous state and exposure of the crystalline basement, contain a greater potential for raising the thermal profile compared to urban areas. Keywords: