Preliminary Results of a Surface Deformation Study, Using Differential InSAR Technique at the Cerro Prieto Geothermal Field, B.C., Mexico
- Key words
- Reservoir Engineering And Monitoring; Cerro Prieto Geothermal Field, surface deformation, subsidence, radar interferometry, InSAR, DinSAR
- Location
- Cerro Prieto, Mexico
- Conference
- Geothermal Resources Council Transactions
- Year
- 2007
- Session
- Subsidence; Remote sensing
- Language
- English
Abstract
The Cerro Prieto geothermal field, located in the Mexicali Valley, B.C., Mexico, has been exploited for energy production since 1973. Geodetic and geotechnical measurements have revealed subsidence likely due to a combination of fluid extraction and tectonic movement in this active tectonic area. This paper reports preliminary results of an ongoing project in which satellite radar (ERS 1/2 and ENVISAT Cband) data is used to map the deformation in this region via interferometric processing. The project objective is to use Differential Interferometric Synthetic Aperture Radar (DIn- SAR) together with geodetic (leveling surveys) and geotechnical (tiltmeters and extensometers) techniques to monitor the spatio-temporal evolution of the surface deformation in the study area and to distinguish among several possible causes (tectonics and fluid extraction) and mechanisms (aseismic and seismic slip).
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