Improved treatments for evaluating horizontal magnetic components through the 3-D FDM in E-polarization induction problems  

作　　者：CHEN Po-fang(陈伯舫) 

机构地区：[1]Flat 3 26/F Blk B Yee Fung Gdn, Yuen Long NT, Hong Kong, China

出　　处：《Acta Seismologica Sinica(English Edition)》2002年第5期519-525,共7页

摘　　要：To improve the accuracy of the numerical evaluation through the 3-D finite difference method, the surface boundary conditions are added to modify the old program. The author has tested the new program by making calculations for the model constructed by Wanamaker, et al (1984). The comparison between the numerical results obtained from this paper and those by Wannamaker, et al (1984) indicates that a pronounced improvement is realized in the evaluation of the horizontal magnetic components. Moreover, better calculations for the vertical magnetic components are also obtainable by using the new program.To improve the accuracy of the numerical evaluation through the 3-D finite difference method, the surface boundary conditions are added to modify the old program. The author has tested the new program by making calculations for the model constructed by Wanamaker, et al (1984). The comparison between the numerical results obtained from this paper and those by Wannamaker, et al (1984) indicates that a pronounced improvement is realized in the evaluation of the horizontal magnetic components. Moreover, better calculations for the vertical magnetic components are also obtainable by using the new program.

关 键 词：numerical modeling 3-D finite difference method surface boundary conditions 

分 类 号：P318.2[天文地球—固体地球物理学]