Magnetotelluric Forward Modeling with Multi-Grid Based on FEM

摘要：

　　Its necessary to select an algorithm for solving large liner equations in magnetotelluric forward modeling,and the algorithm will impact on the efficiency and accuracy of the modeling results.For solving the large liner equations formed in 2D magnetotelluric forward modeling more efficiently,uneven multi-grid method based on Finite Element Method(FEM) is applied in this paper.In 1D and 2D models,the liner equations are solved by two ways: one is the algorithm of biconjugate gradients stabilized method(BICGSTAB),the other is multi-grid method.The result shows that multi-grid method is more efficient for smoothing error component,it can also improve the speed and accuracy of the calculation in the magnetotelluric forward modeling.

关键词： Magnetotelluric sounding, multi-grid method forward modeling finite element method

作者: Yanlong Wang Jiabin Yan Jianxin Feng Di Wu

作者单位: Institute of Geophysical Prospecting, Yellow River Engineering Consulting Co., Ltd. Zhengzhou, PRC ; School of Info-Physics and Geomatics Engineering, Central South University, Changsha, PRC School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, PRC

会议类型: 国际会议

会议名称: 第五届环境与工程地球物理国际会议(ICEEG 2012)

会议地点: 长沙

会议语种:英文

页码: 3-8

在线出版日期: 2012-06-15（万方平台首次上网日期，不代表论文的发表时间）