Abstract

ALVES, Elis; ANJOS, Max  and  LOPES, António. Multitemporality of surface temperature anomalies: the case of Iporá city, Brazil. GOT [online]. 2017, n.12, pp.5-21. ISSN 2182-1267.  https://doi.org/10.17127/got/2017.12.001.

The aim of this study was to analyze, from satellite data of Landsat - 5, the multi-temporal and spatial pattern of temperature anomalies in the city of Iporá - Goiás. To this end, were used multispectral images (thermal band of Landsat 5 satellite), from the years 1984-2011. For the processing of images were developed mathematical models using the Model Maker of the software Erdas Imagine 11. The results showed that: 1 - with the use of thermal anomalies, the maps were homogeneous, allowing temporal comparison; 2 - Maximum surface thermal anomalies occurred in areas of little urbanization, with exposed soil; 3 - The highest number of positive anomalies occurred in areas of low urbanization, with exposed soil. While in the more urbanized areas with presence of vegetation and nearby surface water, it was the largest amount of negative anomalies; 4 - In points B, E, F and H statistically significant trends were observed.

Keywords : surface temperature; trend; variability.

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