Modeling of 3-D terrain effect on MT field using BEM

THE modeling of 2-D terrain effect on magnetotelluric(MT)has been solved using finite ele-ment method(FEM)and boundary element method(BEM).This note uses BEM tosolve the problem.The solution of H_x- and E_x-polarization wave can be obtained by the samemethod.Thus,this note only discusses the solution of H_x-polarization wave.