| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 1.07 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
O objetivo desta pesquisa foi analisar, a partir de dados do satélite Landsat - 5, o padrão
multitemporal e espacial das anomalias térmicas na cidade de Iporá - Goiás. Para tanto,
foram utilizadas imagens multiespectrais (banda termal do satélite Landsat 5), dos anos de
1984 a 2011. Para o processamento das imagens foram desenvolvidos modelos
matemáticos por meio da ferramenta Model Maker do software Erdas Imagine 11. Os
resultados evidenciaram que: 1 - com a utilização das anomalias térmicas, os mapas ficaram
homogêneos, o que possibilitou comparação temporal; 2 - Anomalias térmicas máximas de
superfície ocorreram em áreas de pouca urbanização, com solo exposto; 3 - O maior
número de anomalias positivas ocorreu nas áreas de baixa urbanização, com solos expostos.
Enquanto que nas áreas mais urbanizadas com presença de vegetação e próximas a superfície de água, ocorreu a maior quantidade de anomalias negativas; 4 - Nos pontos B, E,
F e H foram observadas tendências estatisticamente significativas.
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.
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.
Description
Keywords
Temperatura de superfície Tendência Variabilidade
Pedagogical Context
Citation
Alves, E., Anjos, M., & Lopes, A. (2017). Multitemporalidade das anomalias da temperatura de superfície: o caso da cidade de Iporá, Brasil. GOT, Revista de Geografia e Ordenamento do Território, (12), 5–21. http://dx.doi.org/10.17127/got/2017.12.001
Publisher
CEGOT