Military Geophysics Mr. Gunnar J. Radel, PE 14 June 2011 This briefing is classified UNCLASSIFIED
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Underground Facility Analysis Center 1 Military Geophysics Mr. Gunnar J. Radel, PE 14 June 2011 This briefing is classified UNCLASSIFIED
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Military Geophysics Mr. Gunnar J. Radel, PE 14 June 2011 This briefing is classified UNCLASSIFIED. UNLASSIFIED. Agenda. Applications Key geophysical sensing needs Key geophysical analytic needs Challenges Lessons learned. UNCLASSIFIED. UNLASSIFIED. Applications. Treaty monitoring - PowerPoint PPT Presentation
Transcript of Military Geophysics Mr. Gunnar J. Radel, PE 14 June 2011 This briefing is classified UNCLASSIFIED
Underground Facility Analysis Center
1
Military Geophysics
Mr. Gunnar J. Radel, PE14 June 2011
This briefing is classifiedUNCLASSIFIED
Underground Facility Analysis Center
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Agenda
Applications Key geophysical sensing needs Key geophysical analytic needs Challenges Lessons learned
UNCLASSIFIED
UNLASSIFIED
Underground Facility Analysis Center
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Applications
Treaty monitoring
Battlespace awareness
Land (and below), sea, air
Detect, locate, characterize
Clandestine tunnel detection
Broad, low resolution detection
Moderate resolution location
High fidelity local interrogation
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Underground Facility Analysis Center
Key Geophysical Sensing Needs Sensing in a non-lab environment
DoD does not typically build vaults Sensor networks
Common communications Pre-processing on node prior to exfil
Size and power matter Trade-offs (minimize reduction in sensitivity or bandwidth)
More robust and resilient sensors No reduction in sensitivity Example: sensitivity locked until sensor is in place
Stability Sensors that do not require frequent or lengthy calibrations
No soaker hoses Noise cancellation versus isolation Advanced sensor concepts for noise reduction
Common GPS time for all
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Underground Facility Analysis Center
Key Geophysical Analysis Needs
Sirles, et. al: “Advancements In Subsurface Modeling Using Seismic Refraction Data”, SAGEEP 2006.
Depth of seismic sources Without placing sensor over the top of the source
Integrated infrasound and meteorological data Rapid computation, interpretation of local & regional synthetics
Helps most with moving networks Workflow optimized analytical environment More tsunamigenic source function and propagation work Cross-domain data fusion (no single geophysical method is applicable everywhere)
Seismic (active and passive) Acoustic, Infrasound Electromagnetic Induction Resistivity Ground penetrating radar
Global database of future sensor deployments Direct download of .css data files
Versus seed format download and unpack
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Underground Facility Analysis Center
Geotechnical Challenges & Factors
Chaos Material (clays, magnetite, salt) Faults, fractures, joints, bedding, paleochannels Groundwater level Seismic velocity Conductivity
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Underground Facility Analysis Center
Environmental Challenges & Factors
Vegetative cover Terrain Rain Space available
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Underground Facility Analysis Center
Man-made Clutter Challenges & Factors Urban chaos Utilities
Underground Power, Telephone, Cable Water, Sewer, Gas Stray current
Overhead - Power Vehicles Structures, Fences
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Underground Facility Analysis Center
Lessons Learned(Field Horror Stories)
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Changing batteries Pulling data cards Equipment quantity and logistics Planning Weather Animal life Self interference & friendly fire
Underground Facility Analysis Center
Questions?
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