Remote Sensing Image-Based Analysis of the Urban Heat Island Effect in Braganca, Portugal

• Tipo: Artigo em Revista Científica Internacional
• Data: 2022

Autores

de Almeida, CR (Autor) Outra; Furst, L (Autor) Outra; Goncalves, A (Autor) Outra; Ana Teodoro (Autor) FCUP

Revista

A Revista está pendente de validação pelos Serviços Administrativos.

Título: ENVIRONMENTS

Vol. 9

Página Final: 98

Indexação

ISI Web of Knowledge - 7 Citações

Scopus

Outras Informações

ID Authenticus: P-00X-55T

DOI: 10.3390/environments9080098

Abstract (EN): Urban Heat Islands increase surface temperatures which impact the health and well-being of urban populations. Radiative forcing is impacted by changes to the land surface associated with urbanization that are particularly significant immediately after sunset. This paper aimed to analyze the behavior of UHI in different Local Climate Zones (LCZ) in Braganca city (Portugal), using Air Temperature (Ta), satellite images (Landsat 8), and on-site data. The methodology included a seasonal approach, integrating data with different scales (spatial, radiometric, and spectral) and qualitative and quantitative analyses. Google Earth Engine (GEE) optimized the processing time and computation requirement to generate the Land Surface Temperature (LST) maps. The integration of data with different scales corroborated the complementation of information/analysis and detected the correlation between the Ta and LST. However, the identification of the UHI was compromised due to the time of the passage of Landsat 8, and it was identified as the Urban Cool Island (UCI), a complementary effect of UHI, supporting the results of previous studies and for the use of Remote Sensing (RS) for thermal effects analysis.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 37