INFLUENCE OF THE URBAN MORPHOLOGY OF DIFFERENT LOCAL CLIMATE ZONES ON THE MICROCLIMATE OF MACEIÓ - AL.
Local Climate Zone, LCZ, Urban Planning, Microclimate.
The Local Climate Zones (LCZs) classification system aims to eliminate
contradictions in the definition of urban, suburban and rural areas in urban climate studies.
However, its application in Brazil is recent and uncommon. In this way, this work
sought to analyze the influence of urban morphology characterized by different LCZs in the
hygrothermal behavior, on a scale of microclimatic approach, in the city of Maceió -
AL. The methodological procedures consisted of the following steps: (a) identification of
different LCZs in the urban fabric of the city according to Stewart's methodological proposal
& Oke (2012); (b) selection of sample points classified with different LCZs in step
previous; (c) monitoring campaign to record air temperature and humidity data
air temperature, on the microclimatic scale, from 9 sample points selected through the method
of fixed points, with different land occupation characteristics representative of different
LCZs in Maceio. As a result, 7 types of LCZs (2, 3, 5, 6, 9, 10) and one
subclassification (9B) at selected points in the city. Furthermore, the results of
temperature and relative humidity of the air indicated that the LCZ 3 presented the temperatures
higher and lower humidity values, due to the absence of vegetation, the density
constructive and large amount of impermeable soil, while the LCZs 9 presented the
less intense temperatures and higher humidity values, due to the presence of areas
permeable, the shading generated by the canopy of trees and natural soil. Finally, this
research reinforces and proves that the urban morphology, characterized from the classification
of areas in LCZs, contributes to the formation of distinct microclimates in the city and that the present
study does not exhaust the discussion on the subject in Maceió. Otherwise, take the first steps
for further research on the influence of different LCZs on the conformation of microclimates,
with a view to future developments in recommendations for urban-environmental planning
of the city that considers the geographic particularities, including the local climate