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dc.contributor.author
Fichtner, Andreas
dc.contributor.author
Hanasoge, Shravan
dc.date.accessioned
2017-11-13T16:43:04Z
dc.date.available
2017-09-05T11:13:21Z
dc.date.available
2017-09-05T17:16:18Z
dc.date.available
2017-11-13T16:43:04Z
dc.date.issued
2017-04
dc.identifier.issn
0956-540X
dc.identifier.issn
1365-246X
dc.identifier.other
10.1093/gji/ggx016
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/183048
dc.identifier.doi
10.3929/ethz-b-000183048
dc.description.abstract
We present homogenization technique for the uniformly discretized wave equation, based on the derivation of an effective equation for the low-wavenumber component of the solution. The method produces a down-sampled, effective medium, thus making the solution of the effective equation less computationally expensive. Advantages of the method include its conceptual simplicity and ease of implementation, the applicability to any uniformly discretized wave equation in 1-D, 2-D or 3-D, and the absence of any constraints on the medium properties. We illustrate our method with a numerical example of wave propagation through a 1-D multiscale medium and demonstrate the accurate reproduction of the original wavefield for sufficiently low frequencies.
en_US
dc.format
application/pdf
dc.language.iso
en
en_US
dc.publisher
Oxford University Press
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Numerical modelling
en_US
dc.subject
Computational seismology
en_US
dc.subject
Theoretical seismology
en_US
dc.subject
Wave propagation
en_US
dc.title
Discrete wave equation upscaling
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2017-01-17
ethz.journal.title
Geophysical Journal International
ethz.journal.volume
209
en_US
ethz.journal.issue
1
en_US
ethz.journal.abbreviated
Geophys. j. int.
ethz.pages.start
353
en_US
ethz.pages.end
357
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03971 - Fichtner, Andreas / Fichtner, Andreas
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03971 - Fichtner, Andreas / Fichtner, Andreas
en_US
ethz.date.deposited
2017-09-05T11:13:22Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-09-05T17:16:20Z
ethz.rosetta.lastUpdated
2021-02-14T20:11:21Z
ethz.rosetta.versionExported
true
ethz.COinS
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