Science and technological developments: article

Inverse problem of magnetotelluric sounding in the bear experiment on the fennoscandian shield
St. Petersburg Branch of Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation of the Russian Academy of Sciences
Journal: Science and technological developments
Tome: 99
Number: 1
Year: 2020
Pages: 15-30
UDK: 550.832
DOI: 10.21455/std2020.1-3
Аnnotation file
Bibliographic list
Keywords: Fennoscandian shield, electromagnetic sounding, inverse problem, inversion, controlled transformation
Аnnotation: 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 the usage of several postulates obtained from the experimental data. It is used the data of the experiments completed on the Fennoscandian shield, the analysis is focused for B27 station from BEAR experiment located in Central Finland. Three methods for joint solving the inverse problem for the results of magnetovariation, magnetotelluric BEAR and controlled sources FENICS soundings is discussed. The use of controlled transformation with a change in geometry of the section allows increasing the resolution of the depth.