Application of the geoelectrical imaging method with capacitively coupled (i.e. non-invasive) sensor arrays to the 3D tomographic reconstruction of man-made objects or structures buried at shallow depth. We present the results of proof-of-concept experiments using representative targets under controlled laboratory conditions. The study demonstrates that the approach can be used to reconstruct and visualise concealed objects, simulating a range of threats. The experimental work has confirmed the predictions from numerical simulations and reinforced the key constraints. 3D geoelectrical imaging could complement and enhance capabilities in security and defence for quantitative, volumetric and structural characterisation of the subsurface. In principle, the methodology is suitable for use on natural ground as well as on vertical walls or engineered structures (e.g. roads, foundations), including within buildings.


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  1. Johnson, T. C., Versteeg, R. J., Ward, A., Day-Lewis, F.D. and Revil, A.
    [2010] Improved hydrogeophysical characterization and monitoring through parallel modeling and inversion of time-domain resistivity and induced-polarization data. Geophysics75(4), Wa27–Wa41.
    [Google Scholar]
  2. Kuras, O., Beamish, D., Meldrum, P. I. and Ogilvy, R. D.
    [2006] Fundamentals of the capacitive resistivity technique. Geophysics71(3), G135–G152.
    [Google Scholar]
  3. Loke, M. H. and Barker, R. D.
    [1996] Practical techniques for 3D resistivity surveys and data inversion. Geophysical Prospecting44(3), 499–523.
    [Google Scholar]
  4. Loke, M. H., Chambers, J. E., Rucker, D. F., Kuras, O. and Wilkinson, P. B.
    [2013] Recent developments in the direct-current geoelectrical imaging method. Journal of Applied Geophysics95, 135–156.
    [Google Scholar]
  5. Murton, J. B., Kuras, O., Krautblatter, M., Cane, T., Tschofen, D., Uhlemann, S., Schober, S. and Watson, P.
    [2016] Monitoring rock freezing and thawing by novel geoelectrical and acoustic techniques. Journal of Geophysical Research-Earth Surface121(12), 2309–2332.
    [Google Scholar]
  6. Uhlemann, S. and Kuras, O.
    [2014] Numerical Simulations of Capacitive Resistivity Imaging (CRI) Measurements. Near Surface Geophysics12(4), 523–537.
    [Google Scholar]
  7. Wilkinson, P. B., Loke, M. H., Meldrum, P. I., Chambers, J. E., Kuras, O., Gunn, D. A. and Ogilvy, R. D.
    [2012] Practical aspects of applied optimized survey design for electrical resistivity tomography. Geophysical Journal International189(1), 428–440.
    [Google Scholar]

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