In order to improve FEM forward modeling efficiency and precision of the 2D magnetotelluric problem, this paper focuses on calculating the response of a two dimensional MT model considering the conductivity and permeability variations simultaneously. These secondary fields method used to solve the secondary variations problems parallel to strike like Wannamaker. A model discrete method based on the bi-tree structure was developed and applied.


Article metrics loading...

Loading full text...

Full text loading...


  1. Chen, L. S.
    (1981), Improvements on the application of finite element method to the two dimensional forward solution in the magnetotelluric method, Journal of Earth Science.2, 241–260.
    [Google Scholar]
  2. Key, K., Weiss, C.
    (2006), Adaptive finite-element modeling using unstructured grids-The 2D magnetotelluric example, Geophysics. 71, 6,291–299.
    [Google Scholar]
  3. Liu, X. J., Wang., J. L., and P.Yu
    (2007), Secondary field based on two dimensional magnetotelluric numerical modeling by finite element method, Journal of Tongji University. 35,8, 1113–1117.
    [Google Scholar]
  4. Li, Y., and J.Pek
    (2008), Adaptive finite element modeling of two-dimensional magnetotelluric fields in general anisotropic media, Geophysical Journal International.175, 942–954.
    [Google Scholar]
  5. Shi, M. J., XuS. Z., and B.Liu
    (1997), Finite element method using quadratic element in MT forward modeling, Chinese Journal Geophysics.40, 3,421–430.
    [Google Scholar]
  6. Wannamaker, P. E., Stodt, J.A., and L.Rijo
    (1987), A stable finite element solution for two-dimensional magnetotelluric modeling, Geophysical Journal Research.88, 1,277–296.
    [Google Scholar]
  7. Xu, S. Z., YuT., and Y. G.Li
    (1995), The finite element method for modeling 2-D MT field on a geoelectrical model with continuous variation of conductivity within each block(I),Geological Journal of Universities.1, 2,66–73.
    [Google Scholar]
  8. Zhang, Z. Y., and Q. C.Liu
    (2013), 2D MT numerical simulation using FEM base on bi-tree grid, Oil Geophysical Prospecting. 48, 3,482–487.
    [Google Scholar]

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error