On a possibility of usage of the scalar impedances for solving the inverse MTS problem for three-dimensional models
DOI:
https://doi.org/10.24028/gzh.0203-3100.v38i2.2016.107768Keywords:
magnetotelluric sounding, visualization, 3D-modeling, scalar impedance, conducting structuresAbstract
A review of the results of calculating of seeming specific resistance for a set of elementary models by scalar impedance method, in particular, by impedance parameter z has been given in the article. The values of electromagnetic field parameters of the models have been calculated by the Mackie 1994 program. According to this method of calculation the field is excited by flat low-frequency homogeneous electromagnetic wave. Calculation of electromagnetic field parameters for each model object was accomplished for a set of values of T periods. Specific resistances calculated by scalar impedance z, are presented as a graphs rz(x) and isolines fields across the observations area. The results obtained for the given class of models have shown a possibility to restore the conducting characteristics of lower half-space without determining the impedance tensor Ž and predetermined a possibility of further development of this method not only for visualization of data but also for obtaining numerical solutions of the inverse MTS problem.
References
Berdichevskiy M. N., Dmitriev V. I., 2009. Models and methods of magnetotelluric. Moscow: Nauchnyy Mir, 680 p. (in Russian).
Prichepiy T. I., 2014. Visualization of MTS data by the method of scalar impedances for numerical models of elementary conducting structures. Geofizicheskiy zhurnal 36(3), 132—145 (in Russian).
Prichepiy T. I., 2012. The dependence of the scalar impedance of the azimuth of the complex magnetic field vector. Geofizicheskiy zhurnal 34(3), 129—136 (in Russian).
Prichepiy T. I., 2010. Scalar parameters of impedance type as a function of magnetic field polarization. Geofizicheskiy zhurnal 32(3), 93—105 (in Russian).
Shuman V. N., 2010. Magneto-telluric impedance: fundamental models and possibilities of their generalizations. Geofizicheskiy zhurnal 32(3), 18—28 (in Russian).
Shuman V. N., 2006. Methods and models of electromagnetic sounding systems: state, limitations and new abilities. Geofizicheskiy zhurnal 28(1), 17—30 (in Russian).
Aboul-Atta O. A., Boerner W. M., 1975. Vectorial Impedance Identity for the Natural Dependence of Harmonic Fields on Closed Boundaries. Canadian. Phys. 53(15), 1404—1407.
Mackie R. L., Smith J. T., Madden T. R., 1994. Three dimensional electromagnetic modeling using finite difference equations: the magnetotelluric example. Radio Sci. 29, 923—935.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2020 Geofizicheskiy Zhurnal
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
