3-D Grounded Electrical Source Airborne Transient Electromagnetic Modelling Using Mimetic Finite Volume and Rational KrylovSubspace Method
An efficient and robust algorithm for 3D forward modelling of the three-dimensional grounded electrical source airborne transient electromagnetic (GREATEM) data is significant important for the survey design and data interpretation.We present a mimetic finite volume and rational Krylov subspace method for the modelling of GREATEM problems.This method first uses mimetic finite volume method to discretize the Maxwells equations over the spatial domain based on the standard Yees staggered grids, then the rational Krylov subspace methods is used for the time integration.The initial magnetic field is obtained by solving a direct current electric (DCR)problem and a magneto-static problem.We demonstrate the accuracy and efficient of the method with the modelling results of a layered earth model and a 3-D complex model.
Transient electromagnetic 3D modeling Galvanic source Mimetic finite volume Rational Krylov subspace
Wentao Liu Jianmei Zhou Colin G.Farquharson Xiu Li
School of Geology Engineering and Geomatics, Changan University, Xian, PRC;Department of Earth Sci School of Geology Engineering and Geomatics, Changan University, Xian, PRC Department of Earth Sciences, Memorial University of Newfoundland, St.Johns, Canada
国际会议
杭州
英文
389-394
2018-06-10（万方平台首次上网日期，不代表论文的发表时间）