Lateral variations of the mantle density and fluctuation of the core-mantle boundary - Comment

Ctirad Matyska & Ondrej Cadek


Ye presented a method to find the mantle density heterogeneities and to solve the mantle dynamic problem simultaneously. However, his approach does not guarantee the full consistency with the observed external gravity field. Moreover, Ye's dynamic system is constrained at the Earth's surface only. In this paper it is shown that additional constraints following from the gravity observations and from the seismic tomography should be taken into account and the variational generalization of Ye's approach is suggested.

Phys. Earth Planet. Inter., 69 (1992), 207-213.