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Exploration Technique: SAR

Exploration Technique Information
Exploration Group: Remote Sensing Techniques
Exploration Sub Group: Active Sensors
Parent Exploration Technique: Radar
Information Provided by Technique
Stratigraphic/Structural: create high-resolution DEMs,
detect fault and ground movement
Cost Information
Low-End Estimate (USD): 10.441,044 centUSD
0.0104 kUSD
1.044e-5 MUSD
1.044e-8 TUSD
/ sq. mile
Median Estimate (USD): 59.575,957 centUSD
0.0596 kUSD
5.957e-5 MUSD
5.957e-8 TUSD
/ sq. mile
High-End Estimate (USD): 673.4067,340 centUSD
0.673 kUSD
6.734e-4 MUSD
6.734e-7 TUSD
/ sq. mile
Time Required
Low-End Estimate: 21 days0.0575 years
504 hours
3 weeks
0.69 months
/ job
Median Estimate: 40 days0.11 years
960 hours
5.714 weeks
1.314 months
/ job
High-End Estimate: 96 days0.263 years
2,304 hours
13.714 weeks
3.154 months
/ job
Additional Info
Cost/Time Dependency: Resolution, Frequency of Collection, Monitoring Period, Level of Processing
Synthetic-aperture radar (SAR) is a form of radar whose defining characteristic is its use of relative motion, between an antenna and its target region, to provide distinctive long-term coherent-signal variations, that are exploited to obtain finer spatial resolution than is possible with conventional beam-scanning means. It originated as an advanced form of side-looking airborne radar (SLAR).
Other definitions:Wikipedia Reegle

Synthetic-Aperture Radar (SAR) and Interferometric SAR (InSAR) are active satellite and airborne remote sensing techniques used to develop, among other things, highly accurate Digital Elevation Models (DEMs) with similar resolution to LiDAR (depending on the wavelengths employed).
Use in Geothermal Exploration
In addition to use in the initial exploration phases at a geothermal prospect, InSAR data can be used to compare pre-geothermal development images with images obtained during and after production and after injection. Information on ground and fault movement in the area may help in refining the area’s reservoir models or in guiding the location of the next production or injection well. Though this application of SAR data to geothermal fields is relatively new and under development, it is commonly applied in oil and gas to characterize reservoirs.
Related Techniques

Data Access and Acquisition

SAR Advantages
  • the signal can penetrate tree canopies (making it useful in places like the Cascades, Alaska, and Hawaii), and
  • the platforms (particularly the satellite platforms) can collect repeat surveys, allowing tracking of very small fault and ground movements.
  • Radar collection (in general) is also insensitive to time-of-day and atmospheric conditions.
SAR data, similar to spectral and LiDAR, can be difficult to process. It requires trained personnel who understand both the complex theory behind radar data collection and the data processing software packages (often stand-alone from other remote sensing software packages).
Data Collection
Unlike the LANDSAT sensor (and other spectral satellites), which continuously collected data as it flew, the radar sensors only collect data when tasked to do so. Therefore, there are certainly areas in the world which lack coverage, though geologically active areas (in which geothermal prospects tend to reside) historically have more coverage.


No exploration activities found.

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