Exact solution of earth-flattening transformation for P-SV waves: Taking surface wave as an example

• 来源期刊: 地震学报（英文版）
• 学科: 地球科学
• 年，卷（期）: 2008,（2）
• 页码范围: 109-117
• 页数: 9页
• 分类号: P315.3+1
• 语种: 英文

摘要

Taking surface wave as an example this paper proposes an exact solution of earth-flattening transformation for P-SV waves and discusses the applicability of the approximate methods. The results show that the transform parameter m has little influence on the final results, and on the condition of short wave approximation, approximate earth-flattening transformation is suitable. Moreover, the efficiency of approximate transformation is twice of that of exact transformation. For low frequency problems exact earth-flattening transformation should be used.