Vulnerability to Subsidence of the City of Juliaca Using the Dinsar 2022 Methodology

Abstract

Abstract Subsidence is a phenomenon related to anthropic activities including the exploitation of underground water resources, a problem present in many countries such as Iran, Mexico, India, France, Italy, China, USA, Japan, just like in the city of Juliaca. The research aimed to identify vulnerability to subsidence in the City of Juliaca through Differential Interferential Synthetic Aperture Radar (DInSAR). The DinSAR Methodology collects satellite data and then processes it using the Sentinel Applition Platform (SNAP) and provides a final map of displacements; the software and manuals are provided by the European Space Agency (ESA). The results show worrying values, reaching an average subsidence value of -326.494mm from 2015 to 2022. These results are related to anthropic activities such as the exploitation of underground water resources and the strata of the areas most vulnerable to this phenomenon, the areas most affected by the subsidence are the areas surrounding the city of Juliaca with a vertical speed of deformation of the soil of -46.642mm / year, these values are obtained in the analysis of the periods from 2015 to 2022 (07 years), being the Auxiliary Zone 01 (Exit Huancané) the most affected by this phenomenon. Studies around the planet have shown us that subsidence puts at risk both material goods and human lives, therefore the importance of the analysis of this phenomenon must be anticipated for the correct application of possible solutions that fit the parameters of the place of study, this article is concerned.