University of Iceland Science Institute, Dunhaga 5, 107 Reykjavik, Iceland.
A 2-D synthetic study of global traveltime tomography
Article first published online: 2 APR 2007
Geophysical Journal International
Volume 106, Issue 1, pages 53–65, July 1991
How to Cite
Gudmundsson, O. and Clayton, R. W. (1991), A 2-D synthetic study of global traveltime tomography. Geophysical Journal International, 106: 53–65. doi: 10.1111/j.1365-246X.1991.tb04600.x
- Issue published online: 2 APR 2007
- Article first published online: 2 APR 2007
- Accepted 1991 January 15. Received 1990 September 10
- earth structure;
A 2-D synthetic test study of global traveltime inversion for deep seated earth structure has been undertaken. This was done by generating traveltime residual data using reasonable models for earth structure. The data were then inverted by similar methods to those applied in global studies of earth structure. Our results indicate that models of the aspherical structure in the lower mantle based on traveltime data are only partially successful and only at the largest scales (harmonic degree ≤3) and that maps of the core-mantle boundary based on traveltimes are unsuccessful.