利用天然地震转换波及二次波反演地壳上地幔速度结构的尝试

A STUDY ON THE INVERSION OF THE VELOCITY STRUCTUE OF THE CRUST AND UPPER MANTLE BY THE USE OF CONVERTED WAVES AND SECONDARY WAVES of THE NATURAL EARTHQUAKE

摘要: 本文是研究利用天然地震PS转换波及PPP等二次波到时资料反演地壳上地幔速度结构的尝试。提出了分步逐层的反演方法使反演问题部份线性化,同时还利用联合反演的方法降低反演误差。文章分析讨论了反演误差,给出了反演实例,并指出了存在的问题及进一步工作的方向。

Abstract: An inversion of velocity structure of crust and upper mantle by using converted PS wave and multiwave PPP etc, is reported in this paper. A "step by step and layer by layer" methed is introduced to linearize the inversion Problem. Error analysis and some practical application are also given, some problems and further development are pointed out.