Multi-sensor DInSAR applied to the spatiotemporal evolution analysis of ground surface deformation in Cerro Prieto basin, Baja California, Mexico, for the 1993–2014 period

Olga Sarychikhina (), Ewa Glowacka and Braulio Robles
Additional contact information
Olga Sarychikhina: CICESE
Ewa Glowacka: CICESE
Braulio Robles: Instituto Mexicano de Tecnología del Agua (IMTA)

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2018, vol. 92, issue 1, No 12, 225-255

Abstract: Abstract The combined effects of active tectonics and anthropogenic activities, primarily geothermal resources exploitation for electricity production in Cerro Prieto geothermal field, influence the ground surface deformation in Cerro Prieto basin, Baja California, Mexico. In this study, a large set of multi-sensor C-band SAR images have been employed to reconstruct the spatiotemporal evolution of aseismic ground surface deformation that has affected Cerro Prieto basin from 1993 to 2014. Conventional DInSAR together with the interferograms stacking procedure was applied. The results showed that the study area presented considerable surface deformation (mainly subsidence) during the entire time of the investigation. The main changes in rate and pattern of surface deformation have a good correlation in time and space with the changes in production in the Cerro Prieto geothermal field. Comparison of LOS displacement maps from different viewing geometries, and decomposition (where possible) of LOS displacement into vertical and horizontal (east–west) components, revealed considerable horizontal displacement which mostly reflects the ground movement at and beyond the margin of the subsidence basin toward the areas of highest subsidence rates. In addition, the validation of the DInSAR results by comparing them against measurements from leveling surveys was performed, confirming the high reliably of satellite interferometry for the ground surface deformation rate mapping in the study area.

Keywords: Aseismic ground deformation; Cerro Prieto geothermal field; Satellite interferometry; Leveling survey (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1007/s11069-018-3206-2

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