接收函数近邻反演方法的改进和对海拉尔台下地壳速度结构的研究  

Improvement on Inversion Method of Neighborhood Algorithm with Receiver Functions and Research of Crust Structure under Station HLR

作　　者：沈旭章[1] 周蕙兰[1] 

机构地区：[1]中国科学院研究生院计算地球动力学重点实验室,北京100049

出　　处：《中国科学院研究生院学报》2005年第3期322-328,共7页Journal of the Graduate School of the Chinese Academy of Sciences

基　　金：国家自然科学基金 (4 0 3 740 0 9)资助

摘　　要：数值试验结果指出 ,用接收函数反演地壳速度结构时 ,在正演和反演过程中使用不匹配的地壳模型参数化方式 ,将对结果产生不良影响 ;同时发现 ,在处理实际资料时将接收函数归一化 ,可能会丢弃介质信息 .在此基础上 ,改进了接收函数和近邻算法反演地壳速度结构的程序 ,并用来反演了海拉尔台下的地壳速度结构 .The numerical test shows that the ill effect will be brought in the inversion result of velocity structure with receiver functions when the parameterized models in the forwarding and inversing procedures are not matched.Some information will be lost in the real data processing when the observed and synthetic receiver functions are normalized respectively.Accordingly,the inversion program of Neighborhood Algorithm with receiver functions is improved and then the crust velocity structure under station HLR is obtained in this paper.

关 键 词：接收函数 近邻算法 地壳结构 模型参数化 

分 类 号：P313.2[天文地球—固体地球物理学]