2.5-D modelling of elastic waves using the pseudospectral method

Takashi Furumura, Hiroshi Takenaka

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)


The pseudospectral method is a high-accuracy numerical modelling technique which requires less memory and CPU time than traditional numerical modelling techniques, such as finite difference. However, full 3-D modelling is still computationally intensive. As we must compromise between realism and computational efficiency, we have developed a 2.5-D pseudospectral scheme for calculating 3-D elastic wavefields in media varying in two dimensions. To demonstrate the feasibility of the scheme described in this paper, we use data from a refraction survey carried out in 1984 by the Explosion Seismology Group in the southeastern foothills of the Hidaka Mountains, Hokkaido, Japan.

Original languageEnglish
Pages (from-to)820-832
Number of pages13
JournalGeophysical Journal International
Issue number3
Publication statusPublished - Mar 1996
Externally publishedYes


  • Explosion seismology
  • Hidaka Mountains
  • Synthetic seismograms

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology


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