IDENTIFICATION OF URBAN HEAT ISLANDS AS A SUBSIDY FOR CREATION OF GREEN AREAS
Keywords:
temperature, urban climate, green areasAbstract
High temperature in cities appears as one more added difficulty resultant from the environmental problems. Nowadays scientists from all over the world have been addressing efforts in the sense of understanding the aspects that contribute to the increase of the urban temperature and its effects. In this way, the objective of this work was to identify heat islands in the urban area of the municipal district of Itabuna-Bahia. The used methodological procedure for identifying the heat islands was through the use of the data from the thermal sensor thermal of the satellites Landsat TM 5 and 7, being made the the necessary atmospheric corrections and conversions, allowing the surface temperature being displayed in levels of ash tones. The results showed temperature variations in the urban perimeter with identification of eight heat islands, whose places were characterized by the largest concentration of paved area and vegetation absence. It was also identified fifteen potential areas, for the implantation of green areas looking for the improvement of the temperature conditions in the identified hot points. These results can subsidize the urban planning, as support in the construction of strategies that would minimize the thermal discomfort.Downloads
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