Determining ground subsidence using InSAR technology: San Antonio-San Vicente road case study
Keywords:
interferometry, SENTINEL-1, displacement estimation, SNAP, InSARAbstract
This research presents a scheme for determining ground subsidence using satellite images SENTINEL-1 and processing with SNAP software. Necessary steps for obtaining ground displacements are described, from the download of images in the Copernicus and Alaska platforms to the final export of results in formats that allow an easy interpretation. The San Antonio-San Vicente road, in Manabí (Ecuador) was analyzed as a case study, where the possibility of subsidence in the road infrastructure and surrounding buildings was evident. Displacement values were obtained for 2017-2024 period, using the proposed technological scheme, and graphical tools allowed presenting results that facilitate interdisciplinary analysis and timely decision making. The recorded displacements reached values up to 29 cm, causing cracks in the road structure. These results suggest the existence of a subsidence process in the study area, which is corroborated by visual inspections in several sections of the road, highlighting the importance of satellite monitoring for early detection and management of geological risk in infrastructures.Downloads
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Copyright (c) 2025 Luis Enrique Acosta-González, Jaime Adrián Peralta-Delgado, Emil Cristhian Veja-Ponce, Walkis Herrera-Blanco, Henry Antonio Pacheco-Gil
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