Use of P coda for explosion medium and improved yield determination. Technical report
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.
- Research Organization:
- Teledyne Geotech, Alexandria, VA (USA)
- OSTI ID:
- 5999322
- Report Number(s):
- AD-A-148765/1/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
450300* -- Military Technology
Weaponry
& National Defense-- Nuclear Explosion Detection
EXPLOSIONS
LEVELS
NATIONAL ORGANIZATIONS
NEVADA TEST SITE
NUCLEAR EXPLOSIONS
RAYLEIGH WAVES
SCATTERING
SEISMIC P WAVES
SEISMIC SURFACE WAVES
SEISMIC WAVES
UNDERGROUND
US DOE
US ORGANIZATIONS