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Observations of long period Rayleigh wave ellipticity

Abstract:

We analyse phase shifts and amplitude ratios of horizontal to vertical components of T ∼ 150's fundamental Rayleigh waves. In the ray picture of surface wave propagation, it is expected that at a single station this ratio will be constant, being controlled only by the seismic velocity structure beneath the seismic station. In contrast, we observe substantial variability in the amplitude ratios measured at a number of stations from the Global Seismic Network. We discuss possible causes for the...

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Publication status:
Published

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Authors


Ferreira, AMG More by this author
Woodhouse, JH More by this author
Journal:
GEOPHYSICAL JOURNAL INTERNATIONAL
Volume:
169
Issue:
1
Pages:
161-169
Publication date:
2007-04-05
DOI:
EISSN:
1365-246X
ISSN:
0956-540X
URN:
uuid:ea3af3c5-bc4c-4ba6-ab68-f138f1db2d46
Source identifiers:
83386
Local pid:
pubs:83386

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