Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Marlies Vasmel"'
Publikováno v:
Geophysical Journal International
Geophysical Journal International, 223 (1)
Geophysical Journal International, 223 (1)
In numerical modelling of wave propagation, the finite-difference (FD) injection method enables the re-introduction of simulated wavefields in model subdomains with machine precision, enabling the efficient calculation of waveforms after localized mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2560b9a06fddfb15f6810151ffcdd3da
Publikováno v:
GEOPHYSICS. 82:T97-T110
Many applications in computational geophysics involve the modeling of seismic wave propagation on a set of closely related subsurface models. In such scenarios, it is of interest to recompute the seismic wavefields locally (only in the regions of cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::667b3bb2c513f613964c8ecfa6e9b8da
https://doi.org/10.1190/geo2016-0458.1
https://doi.org/10.1190/geo2016-0458.1
Autor:
Johan O. A. Robertsson, Marlies Vasmel
Publikováno v:
GEOPHYSICS. 81:T303-T309
Wavefield injection in finite-difference (FD) grids can be described by the method of multiple point sources. The method teaches how synthetically generated wavefields and wavefield constituents can be reconstructed from surface recordings using a co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::992b408c73dee27c3cbd65469156504f
https://doi.org/10.1190/geo2016-0060.1
https://doi.org/10.1190/geo2016-0060.1
Publikováno v:
GEOPHYSICS. 81:T79-T90
We have developed a new data-driven method to solve the free-surface-related multiple problem using forward space-time-domain modeling. We build a finite-difference (FD) modeling engine in which the interaction of any desired wavefield with an unknow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ed17233f5a7289d76bbe58f770796df
https://doi.org/10.1190/geo2015-0306.1
https://doi.org/10.1190/geo2015-0306.1
Autor:
D.J. van Manen, Cedric Schmelzbach, Marlies Vasmel, Johan O.A. Robertsson, C. Van Renterghem, Lasse Amundsen
Publikováno v:
78th EAGE Conference and Exhibition 2016.
The finite difference (FD) method is among the most popular methods for modelling seismic wave propagation. Although the method has enjoyed huge success for its ability to produce full wavefield seismograms in complex models, it also has some drawbac
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https://explore.openaire.eu/search/publication?articleId=doi_________::e08047e30618c21819e221ab727fe6f6
https://doi.org/10.3997/2214-4609.201601176
https://doi.org/10.3997/2214-4609.201601176
Publikováno v:
78th EAGE Conference and Exhibition 2016.
We present a new methodology for local wave field simulation after model updates using exact boundary conditions (EBC’s). The finite-difference time-domain (FDTD) solver can be applied to models of arbitrary complexity. We apply the local wave fiel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99b52f0eba3df68714e61b6a64b9cf5c
https://doi.org/10.3997/2214-4609.201601666
https://doi.org/10.3997/2214-4609.201601666
Publikováno v:
SEG Technical Program Expanded Abstracts 2014.
We show that by injecting the seismic wavefield measured on multicomponent sensors in streamers or on the sea bed into a time-space domain modeling scheme such as finite differences (FD), various wavefields can be predicted in a radically new way for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c63af3f413a1cd79ec4c911c96a2daf
https://doi.org/10.1190/segam2014-0648.1
https://doi.org/10.1190/segam2014-0648.1
Publikováno v:
Proceedings.
We present a new method for the elimination of free surface related multiples in marine seismic data. The method can be applied to datasets that contain both pressure and vertical component of particle velocity recordings. It is based on using a time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::359eb3b87735c0ef21a43685b1bb5b6d
https://doi.org/10.3997/2214-4609.20140669
https://doi.org/10.3997/2214-4609.20140669
Publikováno v:
Journal of the Acoustical Society of America
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Broadband cloaking and holography are achieved by creating an exact boundary condition on a surface enclosing an object or free space. A time-recursive, discrete version of the Kirchhoff-Helmholtz integral predicts the wavefield impinging on the surf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e65796af7aca64a687aabbbfb7d07a2e