Utilização Do Infravermelho Termal Na Análise Espaço Temporal Da Temperatura De Superfície E Ilhas De Calor Urbanas

Trindade, Patricia Michele Pereira; Saldanha, Dejanira Luderitz; Filho, Waterloo Pereira

doi:10.14393/rbcv69n4-44338

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…However, despite stations not being as affected on cloudy days, the limited and uneven distribution of these stations can result in the absence of representative temperature data for the study region [14]. Therefore, the use of orbital images has become widespread with advancements in satellite development, increasing spatial, spectral, and temporal resolution [15]. These images have been essential in evaluating environmental impacts and are a powerful tool for monitoring changes in urban areas.…”

Section: Introductionmentioning

confidence: 99%

Urban Heat Island Assessment in the Northeastern State Capitals in Brazil Using Sentinel-3 SLSTR Satellite Data

Fernandes,

Ferreira,

Nascimento

et al. 2024

Sustainability

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The lack of a solid methodology defining urban and non-urban areas has hindered accurately estimating the Surface Urban Heat Island (SUHI). This study addresses this issue by using the official national urban areas limit together with a surrounding areas classification to define three different reference classes: the urban adjacent (Ua), the future urban adjacent (FUa), and the peri-urban (PUa), consequently providing a more accurate SUHI estimation on the nine northeastern Brazilian capitals. The land surface temperature was obtained in this study using the Sentinel-3 satellite data for 2019 and 2020. Subsequently, the maximum and average SUHI and the complementary indexes, specifically the Urban Thermal Field Variation Index (UTFVI) and the Thermal Discomfort Index (TDI), were calculated. The UTFVI expresses how harmful the eco-environmental spaces are, with a very strong SUHI for three capitals. In addition, the TDI, with values between 24.6–28.8 °C, expresses the population’s thermal comfort, with six capitals showing a very hot TDI. These findings highlight the need for strategies to mitigate the effects of the SUHI and ensure the population’s thermal comfort. Therefore, this study provides a better SUHI understanding and comparison for the Brazilian northeastern region, which has diverse areas, populations, and demographic variations.

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Section: Introductionmentioning

confidence: 99%

Urban Heat Island Assessment in the Northeastern State Capitals in Brazil Using Sentinel-3 SLSTR Satellite Data

Fernandes,

Ferreira,

Nascimento

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

“…According to [13], the use of orbital images has become widespread with the satellite's development advancement, increasing the spatial, spectral, and temporal resolution. In addition, these images have been essential in evaluating environmental impacts and are a powerful tool for monitoring changes in urban space.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Urban Heat Island in the Northeastern State Capitals in Brazil Using Sentinel Satellite Data – 3 SLSTR

Fernandes¹,

Ferreira²,

Nascimento³

et al. 2023

Preprint

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The Surface Urban Heat Island (UHI) is caused by the difference in temperature between the urban and its surrounding areas. However, in the scientific literature, there is no solid methodology defining urban and non-urban areas, which is essential to estimate the SUHI with greater accuracy. This study uses the official national urban areas limit, to obtain the SUHI more accurately on the nine northeastern Brazilian capitals. The land surface temperature was obtained using the Sentinel 3 satellite data for the years 2019 and 2020. Afterward, the maximum and average SUHI, and the complementary indexes were calculated, such as the Urban Thermal Field Variation Index (UTFVI) and the Thermal Discomfort Index (TDI) for the urban areas and their surrounding areas. The Maximum and Average SUHI, obtained values between 1.85 and 8.25 and -4.92 and 2.59 degree difference, respectively, proving the SUHI existence in the study areas. The UTFVI, with values between 0.010 and 0.040, expresses how bad the eco-environmental spaces of urban are. The TDI, with values between 24.61 and 28.89 ºC, expresses the population’s thermal comfort. Therefore, this study provides a better understanding of the surface UHI pioneeringly for the Brazilian Northeast Region.

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“…As mudanças climáticas constituem, na atualidade, uma das principais ameaças ao ser humano. Diante disto e da crescente expansão urbana, Trindade et al (2017) alertam sobre os impactos que a substituição do meio natural por áreas construídas pode provocar. Segundo o último Censo Demográfico (IBGE, 2010), 84% da população brasileira reside em áreas urbanas.…”

Section: Introductionunclassified

O Fenômeno de Ilhas de Calor e o Papel da Arborização Urbana Para Mitigá-lo: Um Estudo em Ituverava, Região Nordeste do Estado de São Paulo, Brasil

Costa

García

Ribeiro

et al. 2023

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O crescimento das cidades e o seu entorno tem, em sua relação com o ambiente natural, causado impactos ambientais que transformam severamente o clima local e influenciam a qualidade de vida das pessoas. O objetivo desta pesquisa foi analisar o fenômeno Ilhas de Calor Urbanas (ICU) na cidade de Ituverava/SP, por meio da análise comparativa em imagens de satélite, dos anos de 2014 e 2021, e indicar o potencial da infraestrutura verde urbana para reduzir os efeitos das ilhas de calor. Espera-se que esta pesquisa forneça informações que possibilitem destacar a obrigatoriedade do fortalecimento das políticas públicas verdes brasileiras no contexto urbano. Pode-se considerar que no município ocorre o fenômeno Ilhas de Calor Urbano, apresentando uma sensação de desconforto térmico, devido às áreas degradadas, solo exposto do entorno da área urbana, ausência de sombreamento de árvores, etc. A avaliação usando as simulações do software I-Tree Canopy também contribuiu para evidenciar os potenciais benefícios da arborização urbana, em relação à qualidade do ar, na qual para mitigar os efeitos do fenômeno e proporcionar conforto térmico em áreas urbanas, é urgente a adoção de medidas para aumentar e distribuir melhor as áreas com vegetação verde, principalmente em volta e no centro da cidade. PALAVRAS-CHAVE: Sensoriamento remoto, Ilha de calor urbano, Arborização urbana, I-Tree canopy, Ituverava-SP.

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Utilização Do Infravermelho Termal Na Análise Espaço Temporal Da Temperatura De Superfície E Ilhas De Calor Urbanas

Cited by 3 publications

References 13 publications

Urban Heat Island Assessment in the Northeastern State Capitals in Brazil Using Sentinel-3 SLSTR Satellite Data

Urban Heat Island Assessment in the Northeastern State Capitals in Brazil Using Sentinel-3 SLSTR Satellite Data

Assessment of Urban Heat Island in the Northeastern State Capitals in Brazil Using Sentinel Satellite Data – 3 SLSTR

O Fenômeno de Ilhas de Calor e o Papel da Arborização Urbana Para Mitigá-lo: Um Estudo em Ituverava, Região Nordeste do Estado de São Paulo, Brasil

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