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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Surface urban heat island and geospatial indicators: comparative decadal assessment through remote sensing

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Author(s):
Iara Nogueira Liguori [1] ; Leonardo Marques Monteiro [2]
Total Authors: 2
Affiliation:
[1] Universidade de São Paulo - Brasil
[2] Universidade de São Paulo - Brasil
Total Affiliations: 2
Document type: Journal article
Source: Ambient. constr.; v. 24, 2024-10-07.
Abstract

Abstract Surface Urban Heat Islands (SUHI) are formed through processes that include decreasing vegetation and increasing materials that are more conductive to heat. To investigate this phenomenon, the objective of this work is to comparatively verify the surface temperature and geospatial indicators to analyze environmental variation in the city of São Paulo, Brazil. The study method is remote sensing, with data from the Landsat 8 satellite over a ten-year timeframe. The variables include land cover, the Normalized Difference Vegetation Index (NDVI), the Normalized Difference Built-up Index (NDBI), and land surface temperature (LST), thereby obtaining the Urban Thermal Field Variation Index (UTFVI) and estimating SUHI formation. The results allowed for the presentation of a progression of variables, highlighting the recurrent formation of SUHI in the central and eastern regions of the city of São Paulo, Brazil. Conversely, the southern and extreme northern districts exhibited the best NDVI indices and low LST values. (AU)

FAPESP's process: 22/02552-0 - Climate changes and the urban transformations: current and future thermal scenarios analysis in São Paulo city.
Grantee:Iara Nogueira Liguori
Support Opportunities: Scholarships in Brazil - Doctorate