From Open Energy Information
Exploration Technique: FLIR
IntroductionUse in Geothermal ExplorationRelated Techniques
Data Access and AcquisitionBest PracticesPotential PitfallsReferences
|Exploration Technique Information|
|Exploration Group:||Remote Sensing Techniques|
|Exploration Sub Group:||Passive Sensors|
|Parent Exploration Technique:||Passive Sensors|
|Information Provided by Technique|
|Thermal:||Map surface temperatures|
|Low-End Estimate (USD):|| 241.35|
24,135 centUSD/ mile
|Median Estimate (USD):|| 643.60|
64,360 centUSD/ mile
|High-End Estimate (USD):|| 1,609.00|
160,900 centUSD/ mile
|Low-End Estimate:|| 0.25 days|
6.844627e-4 years/ sq. mile
|Median Estimate:|| 1.03 days|
0.00282 years/ sq. mile
|High-End Estimate:|| 3.89 days|
0.0107 years/ sq. mile
|Cost/Time Dependency:||Location, Size, Resolution, Terrain, Weather|
FLIR can be used to look for temperature anomalies on the earth’s surface that may be associated with geothermal areas. FLIR cameras are designed to sense infrared radiation in the medium (3-5 micrometer) and long (8-12 micrometer) wavelengths.
- "FLIR can be used to look for temperature anomalies on the earth’s surface that may be associated with geothermal areas. FLIR cameras are designed to sense infrared radiation in the medium (3-5 micrometer) and long (8-12 micrometer) wavelengths.'"`UNIQ--ref-00000000-QINU`"'" cannot be used as a page name in this wiki.
- The given value was not understood.
Data is typically collected only from one or two bands and is used to look for relatively warm or hot materials (e.g., hot springs, pools, hot rock/lava and snow melt).
- Passive Sensors
- Aerial Photography
- Geodetic Survey
- Hyperspectral Imaging
- Long-Wave Infrared
- Multispectral Imaging
- Near Infrared Surveys
- Oblique Aerial & Ground Visible Band & Thermographic Imaging
- [[Stereo Satellite Imagery|Stereo Satellite Imagery" cannot be used as a page name in this wiki.
The given value was not understood.In general night time scans are better when searching for thermal anomalies because solar irradiation overwhelms during daytime scans. Daytime scans are useful however, for applying corrections that are needed due to topographic, albedo, and thermal inertia effects.
The given value was not understood.Topography can have a significant effect on thermal images; slopes facing the sun receive more thermal energy than slopes facing away from the sun. This effect is stronger during the daytime but carries on into the nighttime, affecting thermal images. Albedo effects influence thermal data as well. Light colored surfaces remain cooler compared to dark colored surfaces. This effect also carries on into the nighttime affecting thermal images. Thermal inertia also affects images. Thermal inertia is the rate at which certain materials heat or cool and is significantly affected by porosity. All of these effects can be estimated and corrected for, but make data processing more difficult.
- Chris Douglass. IR Spectral Bands and Performance [Internet]. 2013. [cited 2013/10/01]. Available from: http://gs.flir.com/uploads/file/tech-notes/tech%20note13%20-%20ir%20spectral%20bands.pdf
- Alaska Energy Wiki. Pilgrim Hot Springs Project - PHASE 1 [Internet]. 2012. [cited 2013/09/30]. Available from: http://energy-alaska.wikidot.com/pilgrim-hot-springs-project-phase-1
- Mariana Eneva (California Energy Commission). 2010. Geothermal Exploration in Eastern California Using Aster Thermal Infrared Data. N/A: California Energy Commission. Report No.: CEC‐500‐2012‐005.
|Page||Area||Activity Start Date||Activity End Date||Reference Material|
|FLIR At Chena Geothermal Area (Holdmann, Et Al., 2006)||Chena Geothermal Area||2005||2007||
|FLIR At Pilgrim Hot Springs Area (DOE GTP)||Pilgrim Hot Springs Area||
|FLIR At Pilgrim Hot Springs Area (Prakash, Et Al., 2010)||Pilgrim Hot Springs Area|