Control de subsidencias del terreno en Pinheiro (Maceió - Alagoas, Brasil) mediante técnicas multitemporales de interferometría radar de satélite
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2020-06-17
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Jaén: Universidad de Jaén
Resumen
El hundimiento del suelo en las grandes ciudades inducido por la explotación del agua o los recursos minerales puede
provocar efectos tales como daños a las infraestructuras, edificios, etc., incluyendo los daños colaterales a la sociedad dentro
de la zona impactada. El objetivo principal de este estudio es cuantificar y monitorizar la evolución del hundimiento en el
barrio del Pinheiro, ubicado en el noreste de Brasil, utilizando la técnica InSAR (Satellite Radar Interferometry) multitemporal.
El área afectada sufrió graves daños por el hundimiento del suelo produciéndose grietas en las estructuras de los edificios
residenciales.
Los datos SAR utilizados en este estudio provienen de la Agencia Espacial Europea (ESA), cubriendo un período total de 2016
a 2019, con 74 imágenes SAR SLC-IW adquiridas por el satélite Sentinel-1A. La velocidad de subsidencia media LOS
encontrada entre los años 2016 y 2019 fue de aproximadamente -7.1 mm/año.
Land subsidence in large cities induced by the exploitation of water or mineral resources from the soil can lead to harmful effects like damage to infrastructure and buildings, causing permanent damage to the society that lives there. The main objective of this study is to quantify and monitor the evolution of subsidence in the neighborhood of Pinheiros, located in northeastern Brazil, using the multi-temporal synthetic radar interferometry technique. The affected area suffered serious damages by the subsidence of the soil and consequently cracks in the structures of residential buildings. The SAR dataset used in this study was composed of European Space Agency (ESA) data, covering a total period from 2016 to 2019, with 74 SLC-IW SAR images acquired by the Sentinel-1A satellite. The mean LOS subsidence velocity found between the years 2016 and 2019 was approximately -7.1 mm/yr.
Land subsidence in large cities induced by the exploitation of water or mineral resources from the soil can lead to harmful effects like damage to infrastructure and buildings, causing permanent damage to the society that lives there. The main objective of this study is to quantify and monitor the evolution of subsidence in the neighborhood of Pinheiros, located in northeastern Brazil, using the multi-temporal synthetic radar interferometry technique. The affected area suffered serious damages by the subsidence of the soil and consequently cracks in the structures of residential buildings. The SAR dataset used in this study was composed of European Space Agency (ESA) data, covering a total period from 2016 to 2019, with 74 SLC-IW SAR images acquired by the Sentinel-1A satellite. The mean LOS subsidence velocity found between the years 2016 and 2019 was approximately -7.1 mm/yr.