Spatial and temporal distribution of urban heat islands.

Autor:	Dos Santos AR; Federal University of Espírito Santo/UFES, Center of Agricultural Sciences, Alto Universitário, s/n 29500-000 Alegre, ES, Brazil. Electronic address: alexandre.santos@pq.cnpq.br., de Oliveira FS; Federal University of Espírito Santo/UFES, Center of Agricultural Sciences, Alto Universitário, s/n 29500-000 Alegre, ES, Brazil., da Silva AG; Federal University of São João Del-Rei, Department of Agricultural Sciences, AC Sete Lagoas, 35701970 Sete Lagoas, MG, Brazil., Gleriani JM; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil. Electronic address: gleriani@ufv.br., Gonçalves W; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil. Electronic address: w.goncav@ufv.br., Moreira GL; Federal University of Espírito Santo/UFES, Center of Agricultural Sciences, Alto Universitário, s/n 29500-000 Alegre, ES, Brazil., Silva FG; Federal University of Espírito Santo/UFES, Center of Agricultural Sciences, Alto Universitário, s/n 29500-000 Alegre, ES, Brazil. Electronic address: felipe.silva@cfs.ifmt.edu.br., Branco ERF; Federal University of Espírito Santo/UFES, Center of Agricultural Sciences, Alto Universitário, s/n 29500-000 Alegre, ES, Brazil., Moura MM; Federal University of Espírito Santo/UFES, Center of Agricultural Sciences, Alto Universitário, s/n 29500-000 Alegre, ES, Brazil., da Silva RG; Federal University of Espírito Santo/UFES, Center of Agricultural Sciences, Alto Universitário, s/n 29500-000 Alegre, ES, Brazil., Juvanhol RS; Federal University of Espírito Santo/UFES, Center of Agricultural Sciences, Alto Universitário, s/n 29500-000 Alegre, ES, Brazil., de Souza KB; Federal University of Espírito Santo/UFES, Center of Agricultural Sciences, Alto Universitário, s/n 29500-000 Alegre, ES, Brazil., Ribeiro CAAS; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil. Electronic address: cribeiro@ufv.br., de Queiroz VT; Federal University of Espírito Santo/UFES, Center of Exact Sciences, Natural and Health, Alto Universitário, s/n 29500-000 Alegre, ES, Brazil., Costa AV; Federal University of Espírito Santo/UFES, Center of Exact Sciences, Natural and Health, Alto Universitário, s/n 29500-000 Alegre, ES, Brazil., Lorenzon AS; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil., Domingues GF; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil., Marcatti GE; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil., de Castro NLM; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil., Resende RT; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil., Gonzales DE; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil., de Almeida Telles LA; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil., Teixeira TR; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil., Dos Santos GMADA; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil., Mota PHS; Federal University of Viçosa/UFV, Av. Peter Henry Rolfs, s/n 36570-000 Viçosa, MG, Brazil.
Jazyk:	angličtina
Zdroj:	The Science of the total environment [Sci Total Environ] 2017 Dec 15; Vol. 605-606, pp. 946-956. Date of Electronic Publication: 2017 Jul 06.
DOI:	10.1016/j.scitotenv.2017.05.275
Abstrakt:	The formation of an urban heat island (UHI) is one of the most common impacts of the urbanization process. To mitigate the effects of UHI, the planning of urban forests (e.g., creation of parks, forests and afforestation streets) has been the major tool applied in this context. Thus, the aim of this study is to evaluate the spatial and temporal distribution of heat islands in Vila Velha, ES, Brazil using the mono-window algorithm. The study followed these methodological steps: 1) mapping of urban green areas through a photointerpretation screen; 2) application of the mono-window algorithm to obtain the spatial and temporal patterns of land surface temperature (LST); 3) correlation between LST and the normalized difference vegetation index (NDVI) and normalized difference build-up index (NDBI); 4) application of ecological evaluation index. The results showed that the mean values of LST in urban areas were at least 2.34 to 7.19°C higher than undeveloped areas. Moreover, the positive correlation between LST and NDBI showed an amplifying effect of the developed areas for UHI, while areas with a predominance of vegetation attenuated the effect of UHI. Urban centers, clustered in some parts of the city, received the worst ecological assessment index. Finally, the adoption of measures to guide the urban forest planning within urban centers is necessary to mitigate the effect of heat islands and provide thermal comfort in urban areas. (Copyright © 2017 Elsevier B.V. All rights reserved.)
Databáze:	MEDLINE
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