(Redirected from Synthetic Aperture Radar)
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
|Low-End Estimate (USD):|| 10.441,044 centUSD |
1.044e-8 TUSD / sq. mile
|Median Estimate (USD):|| 59.575,957 centUSD |
5.957e-8 TUSD / sq. mile
|High-End Estimate (USD):|| 673.4067,340 centUSD |
6.734e-7 TUSD / sq. mile
|Low-End Estimate:|| 21 days0.0575 years |
0.69 months / job
|Median Estimate:|| 40 days0.11 years |
1.314 months / job
|High-End Estimate:|| 96 days0.263 years |
3.154 months / job
|Cost/Time Dependency:||Resolution, Frequency of Collection, Monitoring Period, Level of Processing|
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.
- 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.