Teleseismic shear wave splitting measurements in noisyenvironments
نویسندگان
چکیده
منابع مشابه
NA-SWS-1.1: A uniform database of teleseismic shear wave splitting measurements for North America
[1] This version of shear wave splitting (SWS) database (DB) for North America (NA) contains 6224 pairs of splitting parameters (fast polarization directions and splitting times) measured using all the available data recorded by digital broadband seismic stations over the period of 1980–2007 and archived at the Incorporated Research Institutions for Seismology Data Management Center. The measur...
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Shear-wave splitting measurements are widely used to analyze orientations of anisotropy. We compare two different shear-wave splitting techniques, which are generally assumed to give similar results. Using a synthetic test, which covers the whole backazimuthal range, we find characteristic differences, however, in fast-axis and delay-time estimates near Null directions between the rotation corr...
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Shear-wave splitting (SWS) analysis using SKS, SKKS, and PKS (hereafter collectively called XKS) phases is one of the most commonly used techniques in structural seismology. In spite of the apparent simplicity in performing SWS measurements, large discrepancies in published SWS parameters (fast direction and splitting time) suggest that a significant portion of splitting parameters has been inc...
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We present a new version of a shear-wave splitting (SWS) database for the western and central United States (WCUS) using broadband seismic data recorded up to the end of 2014 to update a previous version that used data recorded prior to the end of 2012, when the USArray Transportable Array stations were still recording in the easternmost region of theWCUS. A total of 7452 pairs of additional me...
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Global mantle convection significantly impacts the processes at Earth’s surface and has been used to gain insights on plate driving forces, lithospheric deformation, and the thermal and compositional structure of the mantle. Upper-mantle seismic anisotropy has been widely employed to study both present and past deformation processes at lithospheric and asthenospheric depths. The eastern China r...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1999
ISSN: 0956-540X,1365-246X
DOI: 10.1046/j.1365-246x.1999.00845.x