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Normal mode coupling due to hemispherical anisotropic structure in Earth's inner core

Abstract:

We present illustrative calculations of the effect of hemispherical variation in inner core anisotropy on Earth's normal modes of oscillation. Body wave studies show that the anisotropy in the inner core is not simple cylindrical anisotropy, which is often portrayed in models derived from normal mode data, but varies with longitude. 'Hemispherical' or odd degree, structure has to be studied by cross-coupling normal modes, as the self-coupling technique is sensitive only to even degree Earth s...

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Publication status:
Published

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Authors


Irving, JCE More by this author
Woodhouse, JH More by this author
Journal:
GEOPHYSICAL JOURNAL INTERNATIONAL
Volume:
178
Issue:
2
Pages:
962-975
Publication date:
2009-08-05
DOI:
EISSN:
1365-246X
ISSN:
0956-540X
URN:
uuid:8ab35921-b448-41f4-a2d0-d0347fd7e6af
Source identifiers:
83429
Local pid:
pubs:83429

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