Geoscience Reference
In-Depth Information
American Institute
of Mining, Metallurgical and Petroleum
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Measurement of the seismoelectric response from a shallow
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Dupuis, J.C., Butler, K.E. & Kepic, A.W. (2007) Seismoelectric
imaging of the vadose zone of a sand aquifer.
Geophysics
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72
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6
), A81
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-0.2
y
= -0.0273
x
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Guichet, X., Jouniaux, L. & Pozzi, J.P. (2003) Streaming
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from point sources in layered media.
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Figure 7.15
Statistical relationship between principal spatial
amplitudes (picked from Figure 7.14) of volumetric water
content against those of modeled seismoelectric conversions.
24769.
Haines, S. & Pride, S. (2006) Seismoelectric numerical modeling
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Geophysics
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Jardani, A., Revil, A., Slob, E. & Sollner, W. (2010) Stochastic
joint inversion of 2D seismic and seismoelectric signals
in linear poroelastic materials.
Geophysics
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), N19
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7.4 Conclusions
-
N31,
We have shown that (1) vadose zone seismoelectric con-
versions can be much stronger than those originating at
the water table or within the saturated zone, (2) vertical
changes in vadose zone volumetric water contents pro-
duce seismoelectric conversions that generate a continu-
ous seismoelectric conversion signal at the ground
surface (linear regression can calibrate seismoelectric con-
version amplitudes in terms of those of volumetric water
contents), and (3) seismoelectric numerical modeling
from fundamental principles can reproduce the empiri-
cally inferred seismoelectric conversion
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Keiswetter, D.A. & Steeples, D.W. (1995) A field investigation
of source parameters for the sledgehammer.
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exploration of glaciers.
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Kulessa, B., Chandler, D.C., Revil, A. & Essery, R. (2012)
Theory and numerical modelling of electrical self-potential
(SP)
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signatures of unsaturated flow in melting snow,
Water
Resources
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48
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volumetric water
content relationship, thus placing it on a solid physical
grounding by confirming that it arises from transient
streaming potentials generated by seismically induced
pressure disturbances, as governed by the unsaturated
electrokinetic coupling coefficient. Under favorable cir-
cumstances and pending additional works, seismoelectric
sounding at the ground surface shows considerable poten-
tial to serve as a nonintrusive vadose zone water content
sensor. Going one step further, this approach could be
used to monitor the water content in the vadose zone
and therefore nonintrusively estimate its flow properties.
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Perrier, F., Petiau, G., Clerc, G., et al. (1997) A one-year
systematic study of electrodes for long period measurements
of the electric field in geophysical environments.
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Perrier, F., Trique, M., Lorne, B., Avouac, J.-P., Hautot, S. &
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Revil, A. (2013a) Effective conductivity and permittivity
of unsaturated porous materials in the frequency range
1 mHz
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1GHz.
Water Resources Research
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2012WR012700.
Revil, A. (2013b) On charge accumulations in heterogeneous
porous materials under
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Transactions of
the
GEO2012-0503.1.
