Corpus ID: 130495687

A real frequency, complex wave-number analysis of leaking modes

  title={A real frequency, complex wave-number analysis of leaking modes},
  author={T. H. Watson},
  journal={Bulletin of the Seismological Society of America},
  • T. H. Watson
  • Published 1972
  • Geology
  • Bulletin of the Seismological Society of America
Leaking-mode dispersion and attenuation is computed for two single-layer models. Roots of the dispersion relation are obtained in the complex wave-number plane, using real frequency as the independent variable. At low frequencies the root loci on the (+, +) sheet determine the fundamental propagating mode plus a series of attenuated standing-wave modes in the vicinity of the source. As frequency increases, the complex roots on all four sheets migrate through the wave-number plane, producing… Expand
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