The impact of urbanisation on local climate in Palmas, Tocantins
DOI:
https://doi.org/10.46421/encac.v17i1.4307Keywords:
urban climate, urbanisation, remote sensing, historical meteorological dataAbstract
The present study uses remote sensing data in order to analyze urban growth in one of the youngest cities in Brazil, Palmas, Tocantins, founded in 1989. The objective was to investigate whether a set of historical climate data is capable of pointing out relationships between schemes of urbanization, vegetation indices and changes in local climate. The analysis of changes in local climate departed from meteorological data obtained at fixed stations of the INMET network represented as typical years, while the levels of urbanization were obtained from the identification of vegetated and built-up classes in satellite imagery. Results suggest that changes in local climate were not always related to urban development in Palmas. Despite positive changes in vegetation distribution patterns in certain areas of the city, showing increases in higher levels of the Normalized Difference Vegetation Index (NDVI) in 2021, which would potentially improve the local climate, heat mitigation was not observed at the reference weather station.
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