2.5-D modelling of elastic waves using the pseudospectral method

Takashi Furumura, Hiroshi Takenaka

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

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
Volume124
Issue number3
Publication statusPublished - Mar 1996
Externally publishedYes

Fingerprint

seismology
Elastic waves
elastic wave
mountains
elastic waves
explosions
refraction
Japan
Seismology
Computer simulation
Computational efficiency
Refraction
modeling
Explosions
Program processors
Data storage equipment
explosion
mountain
method

Keywords

  • Explosion seismology
  • Hidaka Mountains
  • Synthetic seismograms

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

2.5-D modelling of elastic waves using the pseudospectral method. / Furumura, Takashi; Takenaka, Hiroshi.

In: Geophysical Journal International, Vol. 124, No. 3, 03.1996, p. 820-832.

Research output: Contribution to journalArticle

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