Urban Expansion and densification of Gran Buenos Aires (2012-2019) from nocturnal satellite images
This paperwork aimed to analyze the urban expansion and density of Greater Buenos Aires (GBA) during the period 2012 - 2019, based on Earth’s nocturnal satellite images. It was made a first methodological approach that allowed exploring the potential of this relatively new...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Instituto de Geografía (IGUNNE)
2020
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/geo/article/view/4097 |
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| Sumario: | This paperwork aimed to analyze the urban expansion and density of Greater Buenos Aires (GBA) during the period 2012 - 2019, based on Earth’s nocturnal satellite images. It was made a first methodological approach that allowed exploring the potential of this relatively new source of information in the urban geography field. There were processed night images of the Earth from the Suomi NPP-VIIRS satellite within the application of the QGIS Software. It was identified a growth of the surface of urban luminosity of 13.87% in a period of 7 years. On the other hand, it was made an approach to the knowledge of the intensity of urban uses and how it evolved during the studied period, reflecting an increase in the average light intensity of 17.77% for the whole set of political-administrative units of the GBA. Likewise, it was evaluated the density of the night lights in the 25 units of analysis and it was confirmed the hypothesis that higher density of illumination, greater the population density with a correlation coefficient r = 0.87. This first methodological approach made it possible to verify, through the GBA case, the usefulness and potential of the night images of the Earth from the Suomi NPP-VIIRS satellite, demonstrating the large of possible applications in the field of scientific Geography. |
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