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Long-period body wave traveltimes through the crust: implication for crustal corrections and seismic tomography

dc.contributor.authorRitsema, Jeroenen_US
dc.contributor.authorvan Heijst, H. J.en_US
dc.contributor.authorWoodhouse, J. H.en_US
dc.contributor.authorDeuss, A.en_US
dc.date.accessioned2010-06-01T20:00:31Z
dc.date.available2010-06-01T20:00:31Z
dc.date.issued2009-11en_US
dc.identifier.citationRitsema, J.; van Heijst, H. J.; Woodhouse, J. H.; Deuss, A. (2009). "Long-period body wave traveltimes through the crust: implication for crustal corrections and seismic tomography." Geophysical Journal International 179(2): 1255-1261. <http://hdl.handle.net/2027.42/73136>en_US
dc.identifier.issn0956-540Xen_US
dc.identifier.issn1365-246Xen_US
dc.identifier.urihttps://hdl.handle.net/2027.42/73136
dc.description.abstractThe traveltimes of P and SH waves through the crust depend strongly on wave period. At periods longer than 10–15 s, where traveltime measurements for indirect (e.g. surface reflected and core reflected) waves are typically made, the traveltimes are shorter than predicted by ray theory. Crustal corrections, often used in global mantle tomography to isolate the effects of the crust on teleseismic traveltimes, may have a complex frequency dependence and influence finite-frequency inversions. Crustal corrections for profiles of CRUST2.0 and the PREM reference model for the mantle may be several seconds larger or smaller than ray-theoretical values, depending on crustal thickness, crustal velocities and wave period. This variability is observed in the difference times between the seismic phases SS and S and between PP and P . It is therefore important to incorporate the effects of the crust on traveltimes in finite-frequency tomography, in order to take full advantage of the variable mantle sensitivity of body waves at different periods.en_US
dc.format.extent922093 bytes
dc.format.extent3109 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.publisherBlackwell Publishing Ltden_US
dc.rightsJournal compilation © 2009 RASen_US
dc.subject.otherBody Wavesen_US
dc.subject.otherSeismic Tomographyen_US
dc.subject.otherWave Propagationen_US
dc.subject.otherCrustal Structureen_US
dc.titleLong-period body wave traveltimes through the crust: implication for crustal corrections and seismic tomographyen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelGeology and Earth Sciencesen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Geological Sciences, University of Michigan, Ann Arbor, MI 48109 , USA. E-mail: jritsema@umich.eduen_US
dc.contributor.affiliationotherDepartment of Earth Sciences, University of Oxford, Oxford OX1 3PR , UKen_US
dc.contributor.affiliationotherDepartment of Earth Sciences, University of Cambridge, Cambridge CB3 0EZ , UKen_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/73136/1/j.1365-246X.2009.04365.x.pdf
dc.identifier.doi10.1111/j.1365-246X.2009.04365.xen_US
dc.identifier.sourceGeophysical Journal Internationalen_US
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dc.owningcollnameInterdisciplinary and Peer-Reviewed


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