Ilha de calor urbana no semiárido: um estudo de caso na cidade de Iguatu/Ceará
Iguatu, located in the interior of the Northeast region of Brazil, is on the list of the 299 most populous municipalities in Brazil and of the 9 most populous in Ceará, configuring itself as the main economic hub of the Centre-South region of Ceará State, where the most intense occupations of act...
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| Formato: | Dissertação |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/50920 |
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| Resumo: | Iguatu, located in the interior of the Northeast region of Brazil, is on the list of the 299
most populous municipalities in Brazil and of the 9 most populous in Ceará, configuring
itself as the main economic hub of the Centre-South region of Ceará State, where the most
intense occupations of activities take place in the urban area of the municipality. In this
context, the present investigation aims to discuss the urban climate composition of a
medium-sized city in the Brazilian semi-arid region, as well as the hygrothermal behavior
and the thermal sensation, considering that the forms of use and occupation of the soil
have direct influence on the modification of the climate of a city. The present research
was carried through the following stages: 1 - bibliographical survey - to subsidize the
construction of a consistent theoretical framework; 2 - geoenvironmental characterization
/ basic cartography of the study area 3 - cartographic collections - in order to gather
information already produced about the study area, also performing the selection of
thermal images; 4 - field work - with primary data survey of temperature values and
relative humidity, performed through mobile transects in two distinct seasonal periods; 5
- data analysis and interpretation - performed through human resource and computational
tools. The results showed that the temperature difference along the studied points in the
two transect routes reached 4.4 °C. The sectors furthest from the urban center were
characterized by the lowest temperatures between 25.1 °C and 27.0 °C. The effective
temperature index for the rainy period showed that the thermal sensation of the study area
varies from 19.1 °C - 22.3 °C (pleasant sensation), and for the dry period, the effective
temperature values varied from 23 °C to 25.5 °C (moderately hot feeling). The results
corroborate the existence of heat islands (atmospheric and superficial), whose shape,
intensity and magnitude depend on several factors of natural and anthropogenic
derivations and that they interfere in the thermal sensation in the municipality of Iguatu/CE. |
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