摘要
本文提出了二维地电模型甚低频电磁法中磁场、电场、极化椭圆倾角、视电阻率异常的边界元数值模拟方法。并根据计算结果讨论了地形影响基本规律与改正方法。所编制的计算程序亦可适用于二维非水平层上满足远区场条件的各类频率电磁测深法。
The presnet paper presents the boundary element numerical simulation techniquefor the magnetic field, the electric field,the dip angle of the polarized ellipse and the apparentresistivity anomaly in the very low frequency electromagnetic method of the two-dimensionalgeoelectric model and, on the basis of calculations, discusses the basic regularity of topographicinfluence and the method for its correction. The composed computation program is also suitablefor various sorts of frequency electromagnetic sounding methods that can meet the requirementsof far field on the two-dimensional nonhorizontal layor.
出处
《物探与化探》
CAS
CSCD
1994年第6期457-462,共6页
Geophysical and Geochemical Exploration
基金
国家自然科学基金
关键词
甚低频电磁法
边界元
地形影响及改正
very low frequency electromagnetic method, boundary element,topographic influence and its correction
