Global Rayleigh wave phase-velocity maps from finite-frequency tomography
نویسندگان
چکیده
منابع مشابه
Surface wave tomography of the western United States from ambient seismic noise: Rayleigh wave group velocity maps
[1] We have applied ambient noise surface wave tomography to data that have emerged continuously from the EarthScope USArray Transportable Array (TA) between October 2004 and January 2007. Estimated Green’s functions result by cross-correlating noise records between every station-pair in the network. The 340 stations yield a total of more than 55,000 interstation paths. Within the 5to 50-s peri...
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S U M M A R Y It is well established that the Earth’s uppermost mantle is anisotropic, but there are no clear observations of anisotropy in the deeper parts of the mantle. Surface waves are well suited to observe anisotropy since they carry information about both radial and azimuthal anisotropy. Fundamental mode surface waves, for commonly used periods up to 200 s, are sensitive to structure in...
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summarythe explanation of the elastic, or velocity structure of the earth has long been a goal of the world’s seismologists. for the first few decades of seismological research, the investigation on velocity structure was restricted to the determination of one-dimensional models of the solid earth and of various regions within it. seismologists are currently obtaining three dimensional velocity...
متن کاملHigh-resolution Rayleigh-wave velocity maps of central Europe from a dense ambient-noise data set
J. Verbeke,1 L. Boschi,1,2 L. Stehly,3 E. Kissling1 and A. Michelini4 1Institute of Geophysics, ETH, Sonneggstr. 5, 8092 Zürich, Switzerland. E-mail: [email protected] 2Institute of Theoretical Physics, University of Zürich, Winterthurerstr. 190, 8057 Zürich, Switzerland 3Géoazur, Bât. 4, 250 rue Albert Einstein, Les Lucioles 1, Sophia Antipolis, 06560 Valbonne, France 4INGV, via di ...
متن کاملReply to comment by S. Crampin on ‘Global anisotropic phase velocity maps for higher mode Love and Rayleigh waves’
S U M M A R Y We thank Stuart Crampin for his interest in our recent paper but respectfully disagree when he argues that our measurements are not appropriate for inferring mantle anisotropy. The approximations we made are common and perfectly acceptable for the considered frequency band. The comment ignores a large part of the literature which investigated this. We will discuss the validity of ...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 2016
ISSN: 0956-540X,1365-246X
DOI: 10.1093/gji/ggv555