P wave tomography of the Earth's lowermost mantle

P wave tomography of the Earth's lowermost mantle

derived from high quality PKP(AB-DF) and PcP-P global dataset
at the UC Berkeley Seismological Laboratory






Models (a) TRH_KC and (b) TRH_KCa, for the optimal damping. These one layered models represent P velocity perturbations with respect to model ak135 (Kennett et al., 1995) in the bottom 300 km of the mantle. TRH_KC was obtained by inverting PKP(AB-DF) and PcP-P data simultaneously, without inner core anisotropy. For TRH_KCa, the same dataset was inverted, but first corrected for the transverse anisotropy model of the inner core by Tromp (1995) . Blackened areas represent non-sampled regions.

Download TRH_KC model with plotting instructions
Download GJI Paper or figures only in PDF format
This is an electronic version of an article published in Geophysical Journal International:
H. Tkalcic, B. Romanowicz and N. Houy,
Constraints on D" structure using PKP(AB-DF), PKP(BC-DF) and PcP-P
travel time data from broadband records, Geophys. J. Int., 149(3), 599-616, 2002.

also available on the Blackwell Science Synergy online delivery service,
accessible via the journal's Website at: http://www.blacksci.co.uk/GJI.