Influência da morfologia urbana de diferentes zonas climáticas locais nos microclimas de Maceió – AL

Abstract

The Local Climate Zones (LCZs) classification method defines and categorizes urban areas according to their local climatic characteristics, aiming to guide sustainable urban planning and Urban Heat Island studies. Therefore, this dissertation analyzed the influence of urban morphology characterized by different LCZs on hygrothermal behavior at a microclimatic scale in the city of Maceió, AL, Brazil. The methodological procedures consisted of the following steps: (a) identification of different LCZs within the urban fabric of the city according to the method proposed by Stewart & Oke (2012); (b) selection of sample points classified with different LCZs from the previous step; (c) monitoring campaign to record air temperature and relative humidity data at a microclimatic scale from 9 selected sample points using the fixedpoint method, representing different land use characteristics associated with different LCZs in Maceió. Seven LCZs were identified, including six building typologies (2, 3, 5, 6, 9, 10) and one subclass (9B) within the chosen sample points in the city. Furthermore, the results of air temperature and relative humidity indicated that LCZs 3 presented higher air temperatures and lower relative humidity values due to the absence of vegetation, high building density, and a large amount of impermeable surfaces. Conversely, LCZs 9 exhibited lower air temperatures and higher relative humidity values due to the presence of permeable areas, shading provided by tree canopies, and natural soil conditions. In conclusion, it was observed that urban morphology, characterized by the classification of areas into LCZs, contributes to the formation of distinct microclimates in the city. This study does not exhaust the discussion on the subject in Maceió but rather takes the first steps towards further research on the influence of different LCZs in shaping microclimates. These findings aim to provide recommendations for urban and environmental planning in the city, considering its geographical particularities, including the local climate.