USE OF TOOLS GEOPROCESSING FOR IDENTIFICATION OF URBAN HEAT ISLANDS IN TERESINA- PI

Felipe Ferreira Monteiro

Abstract


 

The land cover suffer constantly modifications caused by human activities or natural processes. The unplanned urban expansion is considered an aggravating factor for changes in local climate and possible formation of urban heat islands. Considering the importance of changes in land cover and its influence on the surface temperature, we performed a spatio-temporal analysis of Waterproof Surface Area (ISA), land use and its thermal field, using remote sensing techniques to the following neighborhoods: Ininga, Fatima, Joquei Club and Grooms in Teresina, PI. In parallel we could assess the evolution of the emergence of new asphalt roads, using data provided by the city planning department. It was observed a strong correlation between building materials and paving with the temperature rise of about 40C in the region, due to the increase in the use of materials such as concrete and asphalt. One of the factors observed was the intense waterproofing of the area, therefore the removal of vegetation cover and an increase of 134% asphalt coverage, and the construction of major projects in the region.


Keywords


Urban Climate, Remote Sensing, Use and Land Cover.

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DOI: https://doi.org/10.29150/jhrs.v3i3.22690

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