scholarly journals Beyond Receiver Functions: Green's Function Estimation by Transdimensional Inversion and Its Application to OBS Data

2019 ◽  
Vol 124 (2) ◽  
pp. 1944-1961 ◽  
Author(s):  
Takeshi Akuhara ◽  
Michael G. Bostock ◽  
Alexandre P. Plourde ◽  
Masanao Shinohara
Keyword(s):  
Green’S Function ◽  
Green's Function ◽  
Receiver Functions ◽  
Function Estimation ◽  
Obs Data

Accuracy of Green's function estimation from correlation of diffuse elastic waves on thin plates

2019 ◽  
Vol 146 (5) ◽  
pp. 3505-3511
Author(s):  
Lynda Chehami ◽  
Emmanuel Moulin ◽  
Julien de Rosny ◽  
Claire Prada
Keyword(s):  
Green’S Function ◽  
Green's Function ◽  
Elastic Waves ◽  
Thin Plates ◽  
Function Estimation

Improved Green’s functions for passive-source structural studies

Geophysics ◽  
2006 ◽  
Vol 71 (4) ◽  
pp. SI95-SI102 ◽  
Author(s):  
Jean-Philippe Mercier ◽  
Michael G. Bostock ◽  
Adam M. Baig
Keyword(s):  
Green’S Function ◽  
Green's Function ◽  
Green's Functions ◽  
Green’S Functions ◽  
Receiver Function ◽  
Order Approximation ◽  
Receiver Functions ◽  
Compressional Modulus ◽  
First Order Approximation ◽  
Text Component

Over the past two decades, teleseismic receiver functions have proved to be a useful tool to investigate crustal structure. Because they represent a first-order approximation to the [Formula: see text]-wave component of the teleseismic-[Formula: see text] Green’s function, receiver functions provide valuable information on physical properties related to shear modulus. However, the implicit use of the [Formula: see text]-component seismogram as a proxy for the source precludes the recovery of information on discontinuous structure involving contrasts in compressional modulus. By deconvolving improved estimates of complex source time functions generated by earthquakes, one may move beyond the conventional receiver function paradigm to a more accurate approximation of the earth’s Green’s function. Using a new deconvolution method, we present estimates of the [Formula: see text]-component of the teleseismic-[Formula: see text] Green’s functions at several stations of the Canadian National Seismic Network (CNSN) that clearly show the receiver-side pure [Formula: see text]-wave crustal multiple. The identification and characterization of these signals in studies of the lithosphere will afford better constraints on subsurface lithology and represent a narrowing of the gap between active- and passive-source seismic imaging.

Localization of acoustic sensors from passive Green's function estimation

2015 ◽  
Vol 138 (5) ◽  
pp. 3010-3018 ◽  
Author(s):  
Thibault Nowakowski ◽  
Laurent Daudet ◽  
Julien de Rosny
Keyword(s):  
Green’S Function ◽  
Green's Function ◽  
Acoustic Sensors ◽  
Function Estimation

DIFFUSE FIELD INTERFEROMETRY FOR EXPERIMENTAL GREEN’S FUNCTION ESTIMATION AND DAMAGE DETECTION

2009 ◽  
Author(s):  
A. Duroux ◽  
J. Ayers ◽  
K. G. Sabra ◽  
M. Ruzzene ◽  
Donald O. Thompson ◽  
...  
Keyword(s):  
Damage Detection ◽  
Green’S Function ◽  
Green's Function ◽  
Function Estimation
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