Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/34449
Share/Export:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Title

Postseismic deformation following the 1994 Northridge earthquake identified using the localized Hartley transform filter

AuthorsTiampo, Kristy F.; Assefa, D.; Fernández Torres, José CSIC ORCID ; Mansinha, L.; Rasmussen, H.
KeywordsHartley transform
GPS time series analysis
Postseismic deformation
Spatio-temporal filtering
Northridge earthquake
Issue DateOct-2008
PublisherBirkhäuser Verlag
Springer
CitationPure and Applied Geophysics 165(8): 1577-1602 (2008)
AbstractHere we present a new mathematical tool, the localized Hartley (HL) transform (Hartley, 1942; Bracewell, 1990), that allows for the filtering of 1-D time series through the identification of the power at various spatial and temporal wavelengths. Its application to and the associated results are presented from its application to continuous Global Positioning System (GPS) data from southern California for the time period 1994 through 2006. The HL transform filter removes the high-frequency components of the data and effectively isolates the longer period signal. This long-period signal is modeled as time-dependent postseismic deformation using the viscoelastic-gravitational model of Fernández and Rundle (2004) for six stations selected for their proximity to the Northridge earthquake. The x-, y-, and z-components of the postseismic deformation are compared to the filtered data. Results suggest that this long-period deformation is a result of postseismic relaxation and that the HL transform filter provides an important new technique for the filtering of geophysical data consisting of the superposition of the effects of numerous complex sources at a variety of spatial and temporal scales.
Publisher version (URL)http://dx.doi.org/10.1007/s00024-008-0390-0
URIhttp://hdl.handle.net/10261/34449
DOI10.1007/s00024-008-0390-0
ISSN0033-4553
E-ISSN1420-9136
Appears in Collections:(IAG) Artículos

Show full item record
Review this work

SCOPUSTM   
Citations

4
checked on May 27, 2022

WEB OF SCIENCETM
Citations

3
checked on May 25, 2022

Page view(s)

307
checked on May 27, 2022

Google ScholarTM

Check

Altmetric

Dimensions


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