地震波の減衰がS 波偏向異方性に及ぼす影響  [in Japanese] The effect of the seismic attenuation on the S-wave polarization anisotropy  [in Japanese]

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Author(s)

Abstract

We investigate the effect of the seismic attenuation on the shear-wave polarization anisotropy by numerical experiments. For the experiments, the P-wave receiver functions are synthesized by assuming that a plane P wave is incident on an anisotropic multi-layer structure with anelastic properties. The synthetic receiver function shows smooth Ps phase waveforms with small amplitudes due to the attenuation of high-frequency spectral components, compared to that calculated for a multi-layer structure with perfect elasticity. From the shear-wave splitting of the Ps converted phases in the synthetic receiver functions, the S-wave polarization anisotropies for the anisotropic layers are measured as a function of propagation direction of the incident P wave. Consequently, we conclude that the seismic attenuation has a minor influence on the measurements of the S-wave polarization anisotropy.

Journal

  • Okayama University Earth Science Report

    Okayama University Earth Science Report 22(1), 1-7, 2015-12-27

    岡山大学理学部地球科学教室

Codes

  • NII Article ID (NAID)
    120005728633
  • NII NACSIS-CAT ID (NCID)
    AN10506284
  • Text Lang
    JPN
  • Article Type
    departmental bulletin paper
  • ISSN
    1340-7414
  • Data Source
    IR 
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