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Study of Recent Deformations in the Bogotá Savanna and the City of Bogotá (Colombia) Using Multi-Temporal Satellite Radar Interferometry

dc.contributor.authorTamayo, Juan
dc.contributor.authorRuiz-Armenteros, Antonio Miguel
dc.contributor.authorÁvila-Álvarez, Guillermo
dc.contributor.authorMatiz, Gustavo
dc.contributor.authorSousa, Joaquim João
dc.date.accessioned2025-01-13T08:30:16Z
dc.date.available2025-01-13T08:30:16Z
dc.date.issued2023
dc.description.abstractBogotá, the largest urban center and capital city of Colombia, is located within the Bogotá savanna, which originated as a lake in the central part of the Colombian Eastern Cordillera. Over time, the lake transformed into a gently undulating plain with horizontally deposited sediments that formed around five million years ago. Over the last few decades, the region has undergone significant population growth and rapid urban development, largely driven by migration from rural areas. This development has substantially impacted the subsidence observed in the city, primarily due to the extraction of groundwater. A previous study by the Servicio Geológico Colombiano (SGC) utilized data from GNSS stations and synthetic aperture radar interferometry (InSAR) with TerraSAR-X SAR between 2011 and 2017 to identify a subsidence pattern in the central region of Bogotá. The purpose of the study was to evaluate the risks and potential disasters associated with the subsidence phenomenon. Our study investigates both the subsidence in Bogotá, previously studied, as well as the rural savanna area, which is currently undergoing significant residential and industrial development. We utilized multi-temporal InSAR (MT-InSAR) techniques with Sentinel-1 SAR images from 2014 to 2021. The analysis results indicate that the outer regions of the city display the most significant subsidence, extending from the center to the north. The subsidence velocities in these areas reach approximately 5–6 cm/year.
dc.identifier.citationhttps://www.mdpi.com/2072-4292/15/21/5249es_ES
dc.identifier.issn2072-4292es_ES
dc.identifier.otherhttps://doi.org/10.3390/rs15215249es_ES
dc.identifier.urihttps://www.mdpi.com/2072-4292/15/21/5249es_ES
dc.identifier.urihttps://hdl.handle.net/10953/3899
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.relation.ispartofRemote Sensing, 15(21), 5249es_ES
dc.rightsCC0 1.0 Universal*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.subjectInSAR
dc.subjectSubsidence
dc.subjectTime series InSAR
dc.subjectPS–InSAR
dc.subjectBogotá savanna
dc.subjectBogotá DC
dc.subjectSentinel–1
dc.titleStudy of Recent Deformations in the Bogotá Savanna and the City of Bogotá (Colombia) Using Multi-Temporal Satellite Radar Interferometryes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES

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