Abstract

The paper considers methodological issues of solving the inverse problem of electromagnetic sounding data. A critical analysis of the previously obtained joint solution for the results of three types of sounding in the fields of controlled and natural sources is carried out. This solution was obtained with several postulates obtained from the experimental data. Data from experiments completed on the Fennoscandian Shield are used; the analysis focuses on station B27 from the BEAR experiment in central Finland. Three methods for jointly solving the inverse problem for the results of magnetovariation, magnetotelluric BEAR and controlled-source FENICS soundings are discussed. Controlled transformation with a change in the geometry of the section makes it possible to increase the depth resolution.

中文翻译：

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Fennoscandian盾的熊实验中的大地电磁测深反问题

摘要

本文考虑了解决电磁测深数据反问题的方法论问题。对先前获得的联合解决方案进行了严格的分析，以分析受控源和自然源领域中三种测深的结果。该解决方案是根据从实验数据中得出的一些假设而获得的。使用芬索斯堪迪亚盾上完成的实验数据；分析的重点是芬兰中部BEAR实验的B27站。讨论了三种共同解决磁变结果，大地电磁BEAR和受控源FENICS测深反问题的方法。通过控制截面的几何形状变化，可以提高深度分辨率。