A relação entre ilhas de calor urbana superficial, ocupação do solo e conforto térmico
um estudo da cidade de João Pessoa, Brasil
DOI:
https://doi.org/10.46421/encac.v17i1.3756Keywords:
temperatura, sensoriamento remoto, Índice de Desconforto de ThomAbstract
Rapid urbanization and population growth bring changes in land use and land cover, triggered mainly by deforestation and replacement of green areas by impermeable areas. Thus, understanding the impacts caused by urbanization is of strong interest to the academic community and urban managers, contributing to the understanding of climate dynamics on a local scale and to the understanding of preventive measures for the formation of urban heat islands. The present article aims to analyze the space-time variability between the years 2013, 2016, 2019 and 2022 of the land surface temperature (LST) and NDVI, as well as the local dynamics of land use and land cover change, based on images from the Landsat series covering the city of João Pessoa, Paraíba. In addition, air temperature ( ) and relative humidity (RH) from two INMET meteorological stations were used in order to analyze the Thom Discomfort Index (TDI). The results prove that deforestation and the loss of green areas with the growth of the urban area, contribute to thermal amplification and the consequent formation of urban heat islands. Such areas had a surface temperature close to 40°C and NDVI values between 0 and 1. The city of João Pessoa received a predominantly “little uncomfortable” classification throughout the historical series, reaching a maximum TDI of 24,99 in 2020. Such results certify the demand for mitigating and preventive strategies that guarantee the health.
References
ABNT. NBR 15220-3. Associação Brasileira de Normas Técnicas, p. 16, 2005.
DE SOUZA E SILVA, R. et al. Thermal comfort conditions at microclimate scale and surface urban heat island in a tropical city: A study on João Pessoa city, Brazil. International Journal of Biometeorology, v. 66, n. 6, p. 1079–1093, 2022.
THOM, Earl Crabill. O índice de desconforto. Weatherwise, v. 12, n. 2, pág. 57-61, 1959.
FIALHO, E. S. Ilha de calor: reflexões acerca de um conceito. Revista ACTA Geográfica, p. 61–76, 2012.
IBGE. Censo Demográfico de 2010. Rio de Janeiro: IBGE, 2010.
IBGE. Manual Técnico de Uso da Terra. 3ª Edição. IBGE, 2013.
MARÇAL, N. A. et al. Analysis of the environmental thermal comfort conditions in public squares in the semiarid region of northeastern Brazil. Building and Environment, v. 152, n. January, p. 145–159, 2019.
OKE, T. R. The Heat Island of the Urban Boundary Layer: Characteristics, Causes and Effects. Wind Climate in Cities, p. 81–107, 1995.
PRÜSS-ÜSTÜN, Annette et al. Prevenção de doenças por meio de ambientes saudáveis: uma avaliação global da carga de doenças dos riscos ambientais . Organização Mundial da Saúde, 2016.
ROUSE, J. W., HAAS; R. H., SCHELL, J. A.; DEERING, D. W. Monitoring vegetation systems in the Great Plains with ERTS, Third ERTS Symposium, NASA SP-351 I, 309-317, 1973.
SOUZA, C. M. et al. Reconstructing three decades of land use and land cover changes in brazilian biomes with landsat archive and earth engine. Remote Sensing, v. 12, n. 17, 2020.
VOOGT, J. A.; OKE, T. R. Complete urban surface temperatures. Journal of Applied Meteorology, v. 36, n. 9, p. 1117–1132, 1997.
VOOGT, J. A.; OKE, T. R. Thermal remote sensing of urban climates. Remote Sensing of Environment, v. 86, n. 3, p. 370–384, 2003.
WULDER, M. A. et al. Fifty years of Landsat science and impacts. Remote Sensing of Environment, v. 280, n. July, p. 113195, 2022.
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