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http://dx.doi.org/10.7582/GGE.2015.18.1.009

Inversion of Resistivity Data using Data-weighting  

Cho, In-Ky (Division of Geology and Geophysics, Kangwon National University)
Lee, Keun-Soo (Division of Geology and Geophysics, Kangwon National University)
Kim, Yeon-Jung (Division of Geology and Geophysics, Kangwon National University)
Yoon, Dae-Sung (Division of Geology and Geophysics, Kangwon National University)
Publication Information
Geophysics and Geophysical Exploration / v.18, no.1, 2015 , pp. 9-13 More about this Journal
Abstract
All the resistivity data contain various kinds of noise. The major sources of noise in DC resistivity measurement are high contact resistance, measurement errors, and sporadic background noise. Thus, it is required to measure data noise to accurately interpret resistivity data. Reciprocal measurements can provide a measure of data precision and noise. In this study, we proposed a data-weighting method from reciprocity measurement. Furthermore, a data-weighting method using both the reciprocity error and data-misfit in the inversion process was studied. Applying the data-weighting method to the inversion of 3D resistivity data, it was confirmed that local anomalies are slightly suppressed in the final inversion results.
Keywords
resistivity; reciprocity; noise; data weighting;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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