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Extremal inversion of lunar travel time dataThe tau method, developed by Bessonova et al. (1974), of inversion of travel times is applied to lunar P-wave travel time data to find limits on the velocity structure of the moon. Tau is the singular solution to the Clairaut equation. Models with low-velocity zones, with low-velocity zones at differing depths, and without low-velocity zones, were found to be consistent with data and within the determined limits. Models with and without a discontinuity at about 25-km depth have been found which agree with all travel time data to within two standard deviations. In other words, the existence of the discontinuity and its size and location have not been uniquely resolved. Models with low-velocity channels are also possible.
Document ID
19780062861
Document Type
Conference Proceedings
Authors
Burkhard, N. (California Univ. Los Angeles, CA, United States)
Jackson, D. D. (California, University Los Angeles, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1975
Subject Category
LUNAR AND PLANETARY EXPLORATION
Meeting Information
Lunar Science Conference(Houston, TX)
Funding Number(s)
CONTRACT_GRANT: NGL-05-007-330
Distribution Limits
Public
Copyright
Other