Acta Seismologica Sinica

, Volume 21, Issue 2, pp 109–117 | Cite as

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

  • Hui Huang (黄慧)
  • Xiao-fei Chen (陈晓非)Email author


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.

Key words

earth-flattening transformation generalized reflection-transmission coefficients method eigen-displacement and traction phase velocity surface wave 

CLC number



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Copyright information

© Seismological Society of China and Springer-Verlag GmbH 2008

Authors and Affiliations

  1. 1.Computational Geodynamics Laboratory School of Earth and Space SciencesPeking UniversityBeijingChina

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