Open AccessThe Free Oscillations of an Anisotropic and Heterogeneous Earth
Author(s) -
Mochizuki E.
Publication year - 1986
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1986.tb01078.x
Subject(s) - anisotropy , spherical harmonics , earth (classical element) , harmonics , azimuth , perturbation (astronomy) , physics , limit (mathematics) , surface (topology) , free surface , geophysics , classical mechanics , mathematical analysis , computational physics , geology , geometry , mathematics , mechanics , optics , quantum mechanics , mathematical physics , voltage
Generalized spherical harmonics are used to simplify the calculation of the perturbation matrix elements (coupling coefficients) for the free oscillations of an anisotropic and laterally heterogeneous earth. In the asymptotic limit of large angular order, the local frequency pertubration which depends on the azimuth and on the location of Earth's surface is defined, and the correspondence to surface waves is established.