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Inverting travel times with a triplicationA method based on the use of constrained spline fits is used to overcome the difficulties arising when body-wave data in the form of T-delta are reduced to the tau-p form in the presence of cusps. In comparison with unconstrained spline fits, the method proposed here tends to produce much smoother models which lie approximately in the middle of the bounds produced by the extremal method. The method is noniterative and, therefore, computationally efficient. The method is applied to the lunar seismic data, where at least one triplication is presumed to occur in the P-wave travel-time curve. It is shown, however, that because of an insufficient number of data points for events close to the antipode of the center of the lunar network, the present analysis is not accurate enough to resolve the problem of a possible lunar core.
Document ID
19840046818
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Jarosch, H. S.
(Weizmann Institute of Science Rehovot, Israel)
Date Acquired
August 12, 2013
Publication Date
December 1, 1982
Publication Information
Publication: Seismological Society of America, Bulletin
Volume: 72
ISSN: 0037-1106
Subject Category
Lunar And Planetary Exploration
Accession Number
84A29605
Funding Number(s)
CONTRACT_GRANT: NASW-3389
Distribution Limits
Public
Copyright
Other

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