3D MT data processing method in complicated mountain area,a case study

摘要：

3D MT data in complicated mountain area may be badly distorted due to the poor terrain and the frequently changed electric property of near-surface heterogeneities. The distortion must be corrected before the inversion. The paper introduces the terrain correction and static correction method for 3D MT data as well as a case in China. Firstly, a modified ratio method is used for the terrain correction,and 3D SF-M (space-frequency medium filter) method for noise suppression and static corrections.Then pseudo-three dimensional non-linear conjugate gradient inversion method is adopted for 3D resistivity imaging. Finally we performed 3D visualization interpretation with the inversion data on GeoEast(r).

关键词： Magnetotellurics 3D mountain area terrain correction

作者: MENG Cuixian SONG Xuguang HU Zuzhi WANG Yuqing YUN Zhineng

作者单位: BGP, CNPC

会议类型: 国际会议

会议名称: The 19th International Workshop on Electromagnetic Induction in the Earth(第十九届国际地球电磁感应学术研讨会)

会议地点: 北京

会议语种:英文

页码: 437-441

在线出版日期: 2008-10-23（万方平台首次上网日期，不代表论文的发表时间）