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Date |
Group |
Speakers |
Summary |
|
9-12 |
S-Team |
Micheal Behm |
Application of Stacking and inversion techniques to 3D refraction/reflection wide-angle data Abstract: In recent years, several 3D seismic refraction experiments aimed at illuminating the crustal structure of large tectonic provinces. Scattering of seismic waves in young orogens like the European Alps challenges the interpretation of seismic records, in particular on crossline gathers. In order to gain maximum information from the 3D data set, the application of stacking techniques proved to be a valuable tool. Stacking and inversion of 3D wide-angle data (Pg, PmP, Pn) require specific signal processing, sorting and modelling approaches which are addressed in the talk. Further, the derived seismic models of the Eastern Alps (crustal velocities, Moho depth map) will be discussed.
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|
10-03 |
C-Team |
Yong Ma |
Image-guided full waveform inversion: test on 2D OBN data Abstract: We use a 2D ocean bottom nodes (OBN) data set to test the image-guided full waveform inversion. In this test, we first use mainly the refraction energy to update low-wavenumber components of the velocity model. In order to obtain high-resolution velocity models, we then proceed to use reflection energy in the data set. When focusing on reflection energy, we use the structural constraints extracted from migration images to estimate velocity models so that the models can make good geological sense.
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|
10-10 (Shifted) |
I-Team |
Esteban and Satyan` |
Abstract: |