scholarly journals Semi-supervised Data-driven Surface Wave Tomography using Wasserstein Cycle-consistent GAN: Application on Southern California Plate Boundary Region

2020 ◽  
Author(s):  
Ao Cai ◽  
Hongrui Qiu ◽  
Fenglin Niu
Keyword(s):  
Surface Wave ◽  
Southern California ◽  
Plate Boundary ◽  
Boundary Region ◽  
Data Driven ◽  
Surface Wave Tomography ◽  
Wave Tomography

scholarly journals Vp/Vs tomography in the southern California plate boundary region using body and surface wave traveltime data

2018 ◽  
Vol 216 (1) ◽  
pp. 609-620 ◽  
Author(s):  
Hongjian Fang ◽  
Huajian Yao ◽  
Haijiang Zhang ◽  
Clifford Thurber ◽  
Yehuda Ben-Zion ◽  
...  
Keyword(s):  
Surface Wave ◽  
Southern California ◽  
Plate Boundary ◽  
Boundary Region

scholarly journals Surface wave tomography from microseisms in Southern California

2005 ◽  
Vol 32 (14) ◽  
pp. n/a-n/a ◽  
Author(s):  
Karim G. Sabra ◽  
Peter Gerstoft ◽  
Philippe Roux ◽  
W. A. Kuperman ◽  
Michael C. Fehler
Keyword(s):  
Surface Wave ◽  
Southern California ◽  
Surface Wave Tomography ◽  
Wave Tomography

Surface wave tomography from seismic ambient noise in Southern California

2005 ◽  
Vol 117 (4) ◽  
pp. 2431-2431 ◽  
Author(s):  
Karim Sabra ◽  
Peter Gerstoft ◽  
Philippe Roux ◽  
Willliam Kuperman ◽  
Michael Fehler
Keyword(s):  
Surface Wave ◽  
Ambient Noise ◽  
Southern California ◽  
Surface Wave Tomography ◽  
Seismic Ambient Noise ◽  
Wave Tomography

The velocity structure of the Carpathian zone from the ambient noise surface wave tomography

2014 ◽  
Vol 50 (5) ◽  
pp. 632-640 ◽  
Author(s):  
T. B. Yanovskaya ◽  
E. L. Lyskova ◽  
T. Yu. Koroleva
Keyword(s):  
Surface Wave ◽  
Ambient Noise ◽  
Velocity Structure ◽  
Surface Wave Tomography ◽  
Wave Tomography

scholarly journals The lithosphere-asthenosphere boundary observed with USArray receiver functions

2012 ◽  
Vol 4 (1) ◽  
pp. 1-31 ◽  
Author(s):  
P. Kumar ◽  
X. Yuan ◽  
R. Kind ◽  
J. Mechie
Keyword(s):  
Surface Wave ◽  
Receiver Function ◽  
The United States ◽  
Receiver Functions ◽  
Function Technique ◽  
Surface Wave Tomography ◽  
Entire Area ◽  
S Receiver Function ◽  
The Usa ◽  
Wave Tomography

Abstract. The dense deployment of seismic stations so far in the western half of the United States within the USArray project provides the opportunity to study in greater detail the structure of the lithosphere-asthenosphere system. We use the S receiver function technique for this purpose which has higher resolution than surface wave tomography, is sensitive to seismic discontinuities and has no problems with multiples like P receiver functions. Only two major discontinuities are observed in the entire area down to about 300 km depth. These are the crust-mantle boundary (Moho) and a negative boundary which we correlate with the lithosphere-asthenosphere boundary (LAB) since a low velocity zone is the classical definition of the seismic observation of the asthenosphere by Gutenberg (1926). Our S receiver function LAB is at a depth of 70–80 km in large parts of westernmost North America. East of the Rocky Mountains its depth is generally between 90 and 110 km. Regions with LAB depths down to about 140 km occur in a stretch from northern Texas over the Colorado Plateau to the Columbia Basalts. These observations agree well with tomography results in the westernmost USA and at the east coast. However, in the central cratonic part of the USA the tomography LAB is near 200 km depth. At this depth no discontinuity is seen in the S receiver functions. The negative signal near 100 km depth in the central part of the USA is interpreted by Yuan and Romanowicz (2010) or Lekic and Romanowicz (2011) as a recently discovered mid lithospheric discontinuity (MLD). A solution for the discrepancy between receiver function imaging and surface wave tomography is not yet obvious and requires more high resolution studies at other cratons before a general solution may be found. Our results agree well with petrophysical models of increased water content in the asthenosphere, which predict a sharp and shallow LAB also in continents (Mierdel et al., 2007).

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