Use of P Coda for Explosion Medium and Improved Yield Determination.

Abstract

Spectral analyses of P and P coda on teleseismic recordings of nuclear explosions at Yucca Flats and Pahute Mesa regions of the Nevada Test Site (NTS) seem to provide explosion source medium information. The spectral ratio P/P-coda on short-period vertical component records at NORSAR shows positive correlation with explosion medium velocity. It seems that the initial P from generally shallower explosions within a low velocity medium experiences significantly lower scattering Q (and perhaps also inelastic Q) as compared to generally deeper explosions in a high velocity medium. Near-source scattering of explosion-generated Rayleigh waves into teleseismic P also appears to play an important role. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 16, 1984
Accession Number
ADA148765

Entities

People

  • I. N. Gupta
  • J. A. Burnetti
  • R. A. Wagner
  • R. R. Blandford
  • T. W. Mcelfresh

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Arms Control
  • Elastic Waves
  • Explosions
  • Frequency
  • Geography
  • Geophysics
  • Measurement
  • Nuclear Explosions
  • Planetary Sciences
  • Rayleigh Waves
  • Scattering
  • Security
  • Seismic Waves
  • Standards
  • Surface Waves
  • Waves

Readers

  • Seismology