Graduate Thesis Or Dissertation

 

Angle of emergence of seismic P waves and its variation with frequency Public Deposited

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/7m01bq17v

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  • The vertical and radial components of a seismic P wave can be decomposed by a Fourier transform into two sets of nonterminating sinusoidal waves with one set for each component. The tangent of the vertical transform divided by the radial transform gives by definition he apparent angle of emergence for that frequency. The actual angle of emergence can be calculated from the apparent angle. The change of the angle with frequency can be obtained by determining the angle over the entire frequency spectrum of the pulse. The angle of emergence is only defined for a pure pulse. Just the short length of uncontaminated signal can be used to calculate the angle U the signal is interfered with by other signals. The actual angle of emergence was calculated as a function of frequency for stations near nuclear explosions. In all cases, the angle varied with frequency.
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  • description.provenance : Made available in DSpace on 2012-03-15T16:13:35Z (GMT). No. of bitstreams: 1 SoudersRobertHunter1967.pdf: 597986 bytes, checksum: 97103f9432492f3dcd0d9d5d13800bef (MD5) Previous issue date: 1966-08-19
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