English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/19865
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

DC FieldValueLanguage
dc.contributor.authorSchimmel, Martin-
dc.contributor.authorPaulssen, H.-
dc.date.accessioned2010-01-04T09:55:54Z-
dc.date.available2010-01-04T09:55:54Z-
dc.date.issued1997-04-
dc.identifier.citationGeophysical Journal International 130(2): 497-505(1997)en_US
dc.identifier.issn0956-540X-
dc.identifier.urihttp://hdl.handle.net/10261/19865-
dc.description.abstractWe present a new tool for efficient incoherent noise reduction for array data employing complex trace analysis. An amplitude-unbiased coherency measure is designed based on the instantaneous phase, which is used to weight the samples of an ordinary, linear stack. The result is called the phase-weighted stack (PWS) and is cleaned from incoherent noise. PWS thus permits detection of weak but coherent arrivals. The method presented can easily be extended to phase-weighted cross-correlations or be applied in the τp domain. We illustrate and discuss the advantages and disadvantages of PWS in comparison with other coherency measures and present examples. We further show that our non-linear stacking technique enables us to detect a weak lower-mantle P-to-S conversion from a depth of approximately 840 km on array data. Hints of an 840 km discontinuity have been reported; however, such a discontinuity is not yet established due to the lack of further evidence.en_US
dc.description.sponsorshipThe NARS network is supported by the Earth Sciences branch of the Netherlands Organization for Scientific Research (GOA). This is Geodynamic Research Institute (Utrecht University) publication 96.044. 'en_US
dc.format.extent894371 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherWiley-Blackwellen_US
dc.rightsclosedAccessen_US
dc.subjectArrayen_US
dc.subjectMantle discontinuitiesen_US
dc.subjectSeismic noiseen_US
dc.subjectTime-series analysisen_US
dc.titleNoise reduction and detection of weak, coherent signals through phase-weighted stacksen_US
dc.typeartículoen_US
dc.identifier.doi10.1111/j.1365-246X.1997.tb05664.x-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://www3.interscience.wiley.com/journal/119175917/abstracten_US
Appears in Collections:(Geo3Bcn) Artículos
Files in This Item:
There are no files associated with this item.
Show simple item record
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.