Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《应用地球物理(英文版)》 2008-04
Add to Favorite Get Latest Update

Three-dimensional conjugate gradient inversion of magnetotelluric sounding data

Lin Changhong1, 2, Tan Handong1, 2 , and Tong Tuo1, 21. State Key Lab of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, 100083, China. 2. School of Geophysics and Information Technology, China University of Geosciences, Beijing, 100083, China.  
Based on the analysis of the conjugate gradient algorithm, we implement a three- dimensional (3D) conjugate gradient inversion algorithm with magnetotelluric impedance data. During the inversion process, the 3D conjugate gradient inversion algorithm doesn’ t need to compute and store the Jacobian matrix but directly updates the model from the computation of the Jacobian matrix. Requiring only one forward and four pseudo-forward modeling applications per frequency to produce the model update at each iteration, this algorithm efficiently reduces the computation of the inversion. From a trial inversion with synthetic magnetotelluric data, the validity and stability of the 3D conjugate gradient inversion algorithm is verified.
【Fund】: sponsored by National Natural Science Foundation of China (Grant Nos. 40774029 40674037 and 40374024);; the National Hi-tech Research and Development Program of China (863 Program) (No. 2007AA09Z310);; the Program for New Century Excellent Talents in University (NCET).
【CateGory Index】: P631.325
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 WEI Wen bo (China University of Geosciences, Beijing 100083, China);New Advance and Prospect of Magnetotelluric Sounding (MT) in China[J];Progress In Geophysics;2002-02
2 HU Zu-zhi 1, HU Xiang-yun 1,2 (1. Institute of Geophysics & Geomatics China University of Geosciences, Wuhan 430074, China; 2. Institute of Geology and Geophysics, Chinese Academy of Sciences , Beijing 100029 , China);Review of three dimensional magnetotelluric inversion methods[J];Progress In Geophysics;2005-01
3 Xu SHI-ZHE(Ocean University of Qingdao, Qingdao 266003) WANG QING-YI WANG JUN(Institute of Minerals and Geology of Beijing, the Head Company of Nonferrous metal industry of China, Beijing100012);MODELING 2-D TERRAIN EFFECT ON MT BY THE BOUNDARY ELEMENT METHOD[J];Chinese Journal of Geophysics;1992-03
4 WU XIAO-PING;XU GUO-MING (Department of Earth and Space Science, University of Science and Technology of China, Hefei 230026, China);STUDY ON 3-D RESISTIVITY INVERSION USING CONJUGATE GRADIENT METHOD[J];Chinese Journal of Geophysics;2000-03
5 TAN HANDONG 1,2 YU QINFAN 1 JOHN BOOKER 3 WEI W T8.BZ]ENBOENBO 1 T8.BX]1 School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China 2 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 3 University of Washington, Seattle, USA 1 School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China 2 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 3 University of Washington, Seattle, USA;MAGNETOTELLURIC THREE-DIMENSIONAL MODELING USING THE STAGGERED-GRID FINITE DIFFERENCE METHOD[J];Chinese Journal of Geophysics;2003-05
6 TAN HANDONG 1,2 YU QINFAN 1 JOHN BOOKER 3 WEI WENBO 1 1 School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China 2 Institute of Geology and Geophysics, Beijing 100029, China 3 University of Washington, Seattle, USA;THREE-DIMENSIONAL RAPID RELAXATION INVERSION FOR THE MAGNETOTELLURIC METHOD[J];Chinese Journal of Geophysics;2003-06
7 YAN Liang-Jun HU Wen-Bao Key Laboratory of Exploration Technologies for Oil and Gas Resources, MOE, Yangzi University, Jingzhou 434023,China;NON-LINEAR INVERSION WITH THE QUADRATIC FUNCTION APPROACHING METHOD FOR MAGNETOTELLURIC DATA[J];Chinese Journal of Geophysics;2004-05
8 CHEN Xiao-Bin~(1,2), ZHAO Guo-Ze~(2),TANG Ji~(2), ZHAN Yan~(2), WANG Ji-Jun~(2)1 Department of Geophysics, Peking University, Beijing 100871, China2 Institute of Geology, Earthquake Adminstration, Beijing 100029, China;An adaptive regularized inversion algorithm for magnetotelluric data[J];Chinese Journal of Geophysics;2005-04
9 HU Zu-Zhi~(1,2),HU Xiang-Yun~1,HE Zhan-Xiang~21 Institute of Geophysics & Geomatics,China University of Geosciences,Wuhan 430074,China2 Department of Non-seismic Exploration,Bureau of Geophysical Prospecting,Hebei Zhuozhou 072751,China;Pseudo-Three-Dimensional magnetotelluric inversion using nonlinear conjugate gradients[J];Chinese Journal of Geophysics;2006-04
10 DAI SHI-KUN(Qing Dao Ocean University, Qing Dao 266003);GEOPHYSICAL INVERSION USING APPARENT MODEL SPACE CONTRAST METHOD[J];Chinese Journal of Geophysics;1994-S2
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved