The application of an integral-equation-based automatic inversion algorithm for Interpretation of vertical electrical sounding data
- سال انتشار: 1404
- محل انتشار: مجله بین المللی معدن و مهندسی زمین، دوره: 59، شماره: 1
- کد COI اختصاصی: JR_IJMGE-59-1_011
- زبان مقاله: انگلیسی
- تعداد مشاهده: 27
نویسندگان
Institute of Geophysics, University of Tehran, Tehran, Iran.
Institute of Geophysics, University of Tehran, Tehran, Iran.
The Faringdon Research Centre for Non-Destructive Testing and Remote Sensing, University of West London, London, United Kingdom of Great Britain and Northern Ireland.
Institute of Geophysics, University of Tehran, Tehran, Iran.
School of Mining Engineering, Faculty of Engineering, University of Tehran, Iran.
Faculty of Sciences, Razi University, Kermanshah, Iran.
چکیده
This study presents the implementation of an automatic inversion algorithm designed for the analysis of direct current (DC) vertical electrical sounding (VES) data, utilizing a one-dimensional (۱D) linear integral equation approach. The forward modelling problem was derived from a three-dimensional (۳D) integral equation, which was elegantly simplified through numerical integration across horizontal dimensions. The inverse problem was tackled through a minimum length solution that integrated a depth-weighting function and optimized the regularization parameter based on the maximum value of the forward operator. The efficacy of this algorithm was validated by inverting synthetic datasets as well as by its application to real field data. The results highlighted the limitations inherent in ۱D inversion, particularly in cases where a layered Earth is significantly violated, as evidenced by comparisons with two-dimensional inversion models. In contrast, in contexts characterized by predominantly layered subsurface structures, the algorithm successfully produced accurate representations of the subsurface models. These findings underscore the method's efficacy in various geological environments, offering a robust tool for geophysical exploration.کلیدواژه ها
DC resistivity, Electrical resistivity sounding, Vertical Electrical Sounding (VES), Integral equationsاطلاعات بیشتر در مورد COI
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