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

• Type: Article in International Scientific Journal
• Date: 2022

Authors

de Almeida, CR (Author) Other; Furst, L (Author) Other; Goncalves, A (Author) Other; Ana Teodoro (Author) FCUP

Journal

The Journal is awaiting validation by the Administrative Services.

Title: ENVIRONMENTS

Vol. 9

Final page: 98

ISSN: 2076-3298

Indexing

ISI Web of Knowledge - 7 Citations

Scopus

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 37