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Remote Sens. 2015, 7(12), 17035-17050; doi:10.3390/rs71215868

Application of InSAR and Gravimetry for Land Subsidence Hazard Zoning in Aguascalientes, Mexico

1
Centro de Ciencias del Diseño y de la Construcción de la Universidad Autónoma de Aguascalientes, Av. Universidad # 940, Ciudad Universitaria, C. P. 20131 Aguascalientes, Mexico
2
Departamento de Geomagnetismo y Exploración, Instituto de Geofísica, Universidad Nacional Autónoma de Mexico, Circuito de la investigación Científica, Ciudad Universitaria, D.F. 04510 Delegación Coyoacán, Mexico
3
Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Zhenhong Li, Roberto Tomas, Norman Kerle and Prasad S. Thenkabail
Received: 23 August 2015 / Revised: 27 November 2015 / Accepted: 7 December 2015 / Published: 17 December 2015
(This article belongs to the Special Issue Earth Observations for Geohazards)
View Full-Text   |   Download PDF [3158 KB, uploaded 17 December 2015]   |  

Abstract

In this work we present an application of InSAR and gravimetric surveys for risk management related to land subsidence and surface ground faulting generation. A subsidence velocity map derived from the 2007–2011 ALOS SAR imagery and a sediment thicknesses map obtained from the inversion of gravimetric data were integrated with a surface fault map to produce a subsidence hazard zoning in the city of Aguascalientes, Mexico. The resulting zoning is presented together with specific recommendations about geotechnical studies needed for further evaluation of surface faulting in these hazard zones. The derived zoning map consists in four zones including null hazard (stable terrain without subsidence), low hazard (areas prone to subsidence), medium hazard (zones with subsidence) and high hazard (zones with surface faulting). InSAR results displayed subsidence LOS velocities up to 10 cm/year and two subsidence areas unknown before this study. Gravimetric results revealed that the thicker sediment sequence is located toward north of Aguascalientes City reaching up to 600 m in thickness, which correspond to a high subsidence LOS velocity zone (up to 6 cm/year). View Full-Text
Keywords: land subsidence; Aguascalientes; surface cracks; ground failure; subsidence zoning; subsidence hazard land subsidence; Aguascalientes; surface cracks; ground failure; subsidence zoning; subsidence hazard
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Pacheco-Martínez, J.; Cabral-Cano, E.; Wdowinski, S.; Hernández-Marín, M.; Ortiz-Lozano, J.Á.; Zermeño-de-León, M.E. Application of InSAR and Gravimetry for Land Subsidence Hazard Zoning in Aguascalientes, Mexico. Remote Sens. 2015, 7, 17035-17050.

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