Increasing the effectiveness of electrical resistivity tomography using ?11n configurations
  • Metaadatok
Tartalom: http://dx.doi.org/10.1111/1365-2478.12215
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published

Type = Article
Cím:
Increasing the effectiveness of electrical resistivity tomography using ?11n configurations
Létrehozó:
Szalai, Sándor
Kis, Á.
Metwaly, M.
Lemperger, István
Szokoli, Kitti
Dátum:
2015
Téma:
QE01 Geophysics / geofizika
Tartalmi leírás:
A new array type, i.e., the ?11n arrays, is introduced in this paper, in which the
sequence of the current (C) and potential (P) electrodes is CPCP, and the distance between
the last two electrodes is n times the distance between the first two ones and that
of the second one and the third one. These arrays are called quasinull arrays because
they are?according to their array and behaviour?between the traditional and null
arrays. It is shown by numerical modelling that, in detecting small-effect inhomogeneity,
these configurations may be more effective than the traditional ones, including
the optimized Stummer configuration. Certain ?11n configurations?especially the
?112, ?113, and ?114?produced better results both in horizontal and vertical resolution
investigations. Based on the numerical studies, the ?11n configurations seem to
be very promising in problems where the anomalies are similar to the numerically
investigated ones, i.e., they can detect and characterize, e.g., tunnels, caves, cables,
tubes, abandoned riverbeds, or discontinuity, in a clay layer with greater efficacy than
those of the traditional configurations. ?11n measurements need less data than traditional
configurations; therefore, the time demand of electrical resistivity tomography
measurements can be shortened by their use.
Típus:
Article
PeerReviewed
Formátum:
text
Azonosító:
Szalai, Sándor and Kis, Á. and Metwaly, M. and Lemperger, István and Szokoli, Kitti (2015) Increasing the effectiveness of electrical resistivity tomography using ?11n configurations. Geophysical Prospecting. pp. 1-17. ISSN 0016-8025 (print), 1365-2478 (online)
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