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Exploration Technique: InSAR

Exploration Technique Information
Exploration Group: Remote Sensing Techniques
Exploration Sub Group: Active Sensors
Parent Exploration Technique: Radar
Information Provided by Technique
Stratigraphic/Structural: Geophysical Monitoring
Hydrological: Can give indications about subsurface geothermal fluid flow
Interferometric Synthetic Aperture Radar (InSAR) is a remote sensing technique that can be used to accurately measure ground displacement.
Other definitions:Wikipedia Reegle

InSAR is a radar technique used in geodesy and remote sensing. This geodetic method uses two or more synthetic aperture radar (SAR) images to generate maps of surface deformation or digital elevation, using differences in the phase of the waves returning to the satellite or aircraft. The technique can potentially measure centimetre-scale changes in deformation over spans of days to years. It has applications for geophysical monitoring of natural hazards, for example earthquakes, volcanoes and landslides, and in structural engineering, in particular monitoring of subsidence and structural stability.
Use in Geothermal Exploration

Surface Subsidence Monitoring
  • InSAR is largely used by the geothermal industry to monitor production-induced subsidence (Oppliger, et al., 2006), which has been an issue at numerous geothermal sites (Eneva, et al., 2007).
  • More recently applied to look at deformation patterns resulting from the subsidence to map fault and fracture zone trends that may control fluid movement in the geothermal reservoir (Opplinger, et al., 2006).
  • Geophysical monitoring of natural hazards (e.g., earthquakes, volcanoes, landslides, etc.)
  • Monitoring of human induced subsidence (Burgmann, et al., 2000).

Related Techniques

Page Area Activity Start Date Activity End Date Reference Material
InSAR (Monaster And Coolbaugh, 2007) Unspecified

InSAR At Brady Hot Springs Area (Laney, 2005) Brady Hot Springs Area

InSAR At Brady Hot Springs Area (Oppliger, Et Al., 2004) Brady Hot Springs Area

InSAR At Central Nevada Seismic Zone Region (Laney, 2005) Central Nevada Seismic Zone Geothermal Region

InSAR At Coso Geothermal Area (2000) Coso Geothermal Area 2000 2000

InSAR At Desert Peak Area (Laney, 2005) Desert Peak Area

InSAR At Dixie Valley Geothermal Area (Laney, 2005) Dixie Valley Geothermal Area

InSAR At Medicine Lake Area (Poland, Et Al., 2006) Medicine Lake Area

InSAR At North Brawley Geothermal Area (Eneva, Et Al., 2013) North Brawley Geothermal Area 2003 2010

InSAR At Redfield Campus Area (Oppliger, Et Al., 2008) Redfield Campus Area

InSAR At Salton Sea Area (Eneva And Adams, 2010) Salton Sea Area

InSAR At Walker-Lane Transitional Zone Region (Laney, 2005) Walker-Lane Transition Zone Geothermal Region

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