Análise da evoluçao do fenômeno de Ilhas de calor no município de Goiânia/Go (1986-2010)

The process of rapid and disorganized urban growth has led to a range of environmental impacts. Among these, we highlight the change of local climate, in which the simultaneous spatial behavior of temperature is revealed as the most important element, the main result in the formation of the phenomen...

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Published in:Boletim goiano de geografia Vol. 31; no. 2; pp. 113 - 127
Main Authors: Ferreira Nascimento, Diego Tarley, Oliveira, Ivanilton José de
Format: Journal Article
Language:English
Portuguese
Published: Universidade Federal de Goiás: Instituto de Estudos Sócio-Ambientais 01-12-2011
Universidade Federal de Goiás
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Abstract The process of rapid and disorganized urban growth has led to a range of environmental impacts. Among these, we highlight the change of local climate, in which the simultaneous spatial behavior of temperature is revealed as the most important element, the main result in the formation of the phenomenon of heat islands . In this context, this article examines the evolution of heat islands in Goiânia/GO, having as a time period from 1986 to 2010, making use of remote sensing data to estimate the values of land surface temperature, and geoprocessing techniques for analysis and measurement of the phenomenon. Based on data and analysis conducted, it was noted that the land surface temperatures showed a certain pattern of spatial and temporal variation. There was a clear reversal in the representation of classes of surface temperature over the years from 1986 to 2010, which ranged from the predominance of temperatures below 24 º C, for the broad domain of temperatures above this level. O processo de crescimento urbano acelerado e desorganizado tem desencadeado uma gama de impactos ambientais. Dentre estes, ressalta-se a alteração do clima local, no qual o comportamento espacial simultâneo da temperatura se revela como o mais importante elemento, tendo como principal consequência a formação do fenômeno de ilhas de calor . Nesse contexto, o presente artigo analisa a evolução das ilhas de calor no município de Goiânia/GO, tendo como recorte temporal o período de 1986 a 2010, valendo-se de dados de sensoriamento remoto, para estimar os valores de temperatura superficial terrestre, e de técnicas de geoprocessamento, para análise e mensuração do fenômeno. Com base nos dados e nas análises realizadas, pôde-se constatar que as temperaturas superficiais terrestres apresentaram certo padrão de variação espacial e, sobretudo, temporal, haja vista ter-se constatado uma verdadeira inversão na representatividade das classes de temperatura superficial no decorrer dos anos de 1986 a 2010, que oscilaram do predomínio absoluto das temperaturas abaixo de 24º C, para o domínio amplo das temperaturas acima desse patamar.
AbstractList O processo de crescimento urbano acelerado e desorganizado tem desencadeado uma gama de impactosambientais. Dentre estes, ressalta-se a alteração do clima local, no qual o comportamento espacial simultâneoda temperatura se revela como o mais importante elemento, tendo como principal consequência a formaçãodo fenômeno de “ilhas de calor”. Nesse contexto, o presente artigo analisa a evolução das ilhas de calorno município de Goiânia/GO, tendo como recorte temporal o período de 1986 a 2010, valendo-se de dadosde sensoriamento remoto, para estimar os valores de temperatura superficial terrestre, e de técnicas degeoprocessamento, para análise e mensuração do fenômeno. Com base nos dados e nas análises realizadas,pôde-se constatar que as temperaturas superficiais terrestres apresentaram certo padrão de variaçãoespacial e, sobretudo, temporal, haja vista ter-se constatado uma verdadeira inversão na representatividadedas classes de temperatura superficial no decorrer dos anos de 1986 a 2010, que oscilaram do predomínioabsoluto das temperaturas abaixo de 24º C, para o domínio amplo das temperaturas acima desse patamar.
The process of rapid and disorganized urban growth has led to a range of environmental impacts. Among these, we highlight the change of local climate, in which the simultaneous spatial behavior of temperature is revealed as the most important element, the main result in the formation of the phenomenon of heat islands . In this context, this article examines the evolution of heat islands in Goiânia/GO, having as a time period from 1986 to 2010, making use of remote sensing data to estimate the values of land surface temperature, and geoprocessing techniques for analysis and measurement of the phenomenon. Based on data and analysis conducted, it was noted that the land surface temperatures showed a certain pattern of spatial and temporal variation. There was a clear reversal in the representation of classes of surface temperature over the years from 1986 to 2010, which ranged from the predominance of temperatures below 24 º C, for the broad domain of temperatures above this level. O processo de crescimento urbano acelerado e desorganizado tem desencadeado uma gama de impactos ambientais. Dentre estes, ressalta-se a alteração do clima local, no qual o comportamento espacial simultâneo da temperatura se revela como o mais importante elemento, tendo como principal consequência a formação do fenômeno de ilhas de calor . Nesse contexto, o presente artigo analisa a evolução das ilhas de calor no município de Goiânia/GO, tendo como recorte temporal o período de 1986 a 2010, valendo-se de dados de sensoriamento remoto, para estimar os valores de temperatura superficial terrestre, e de técnicas de geoprocessamento, para análise e mensuração do fenômeno. Com base nos dados e nas análises realizadas, pôde-se constatar que as temperaturas superficiais terrestres apresentaram certo padrão de variação espacial e, sobretudo, temporal, haja vista ter-se constatado uma verdadeira inversão na representatividade das classes de temperatura superficial no decorrer dos anos de 1986 a 2010, que oscilaram do predomínio absoluto das temperaturas abaixo de 24º C, para o domínio amplo das temperaturas acima desse patamar.
Author Oliveira, Ivanilton José de
Ferreira Nascimento, Diego Tarley
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Snippet The process of rapid and disorganized urban growth has led to a range of environmental impacts. Among these, we highlight the change of local climate, in which...
O processo de crescimento urbano acelerado e desorganizado tem desencadeado uma gama de impactosambientais. Dentre estes, ressalta-se a alteração do clima...
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SubjectTerms clima urbano
des images thermiques
Goiânia
Goiânia/GO
heat islands
ilhas de calor
imagens termais
le climat urbain
thermal images
urban climate
îlots de chaleur
Title Análise da evoluçao do fenômeno de Ilhas de calor no município de Goiânia/Go (1986-2010)
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