Quasi-analytic solution of the magnetotelluric vertical layered anisotropic model

作者: Bing Xue , Ling Huang , Guangyou Fang , Yicai Ji

DOI: 10.2991/ICEEG-16.2016.79

关键词: MagnetotelluricsPhysicsIsotropyPartial differential equationFinite element methodAxial symmetryMathematical analysisFourier transformElectromagnetic fieldAnisotropyGeophysics

摘要: In order to explain the surveyed data more accurately and have a better understanding of distribution geoelectricity, two-dimensional partial differential equations Magnetotelluric in anisotropic media are employed establish vertical layered medium axially model by Fourier Transform method. The quasi-analytic solutions electromagnetic field TM mode derived from three layers. MT responses isotropic degenerated analyzed compared with results computed finite element Similarly, calculated analyze characters response functions. This has further guiding significance on cognizing magnetotelluric characteristics complicated explaining detected data. analytic-solutions (4) , so geoelectric structure accurately, we present mathematical for media. this paper, firstly three-layered deduced. Then accuracy is verified using Finally, obtained functions discussed.

参考文章(3)
B.A. Hobbs, Analytical solutions to global and local problems of electromagnetic induction in the earth Physics of the Earth and Planetary Interiors. ,vol. 10, pp. 250- 261 ,(1975) , 10.1016/0031-9201(75)90051-5
James E. Mann, The importance of anisotropic conductivity in magnetotelluric interpretation Journal of Geophysical Research. ,vol. 70, pp. 2940- 2942 ,(1965) , 10.1029/JZ070I012P02940