摘要
对地球物理学中常用的反演方法在算法上作了一些改进,使得计算速度大为提高,并使计算机占用的内存减少到改进前的几分之一到几十分之一,从而避免了原来由于射线或者反演的块数过多而不能计算的问题.将改进后的程序应用于1993年和1996年华南地区地壳的面波品质因子——Q值的实际反演,为中长期地震预报和地震趋势分析提供背景资料.
We introduced the improvement of algebraic reconstruction technique (ART) method , which often used as inversion method in Geophsics. This makes us calculate more rapidly , above all, decreases the computer's memories occupied by this program so much that makes us avoid the problem which we often face when the rays and the blocks are too numerous to calculate. The inversion result, the distribution of Surface wave s Q value for South China in 1993 and 1996 will offer some background information about medium - long term earthquake prediction.
出处
《华南地震》
1998年第2期37-41,46,共6页
South China Journal of Seismology
关键词
地震反演
Q值
代数重建法
ART算法
面波
Seismic inversion, Q value, Algebraic reconstrution technique (ART) method
