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International Workshop on Multi-messenger Tomography of the Earth

4–7 juil. 2023
APC-Université Paris Cité
Fuseau horaire Europe/Paris

Session

Methodologies and numerical approaches to inversion problems

5 juil. 2023, 09:00
Amphitheater Pierre-Gilles de Gennes (APC-Université Paris Cité)

Amphitheater Pierre-Gilles de Gennes

APC-Université Paris Cité

Présidents de session

Methodologies and numerical approaches to inversion problems

  • Stephanie Durand (CNRS - LGLTPE)

Documents de présentation

Aucun document.

  1. 55. An Efficient Workflow for Global Seismic Tomography
    Dr Sebastian Noe (ETH Zurich)
    05/07/2023 09:00
    Talk

    Understanding the Earth’s interior properties is vital for various research branches like geodynamics and plate tectonics and helps crucial estimations for seismic risk assessments and shake maps. Full seismic waveform inversion has emerged as a promising methodology to recover improved tomographic images of the mantle and crust. As the workflow solves the wave equation through numerical...

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  2. 10. Computational and Statistical Aspects of Neutrino Oscillation Tomography
    Dr Joao Coelho (APC / CNRS)
    05/07/2023 09:30
  3. 56. An example of combined inversion: muon tomography
    Dr Marina Rosas-Carbajal (IPGP)
    05/07/2023 10:00
    Talk

    Muon imaging has recently emerged as a powerful method to complement standard geophysical tools in the understanding of the Earth’s subsurface. Muon measurements yield a “radiography” of the average density along the muon path, allowing to image large volumes of a geological body from a single observation point. More traditional gravity field measurements are also sensitive to the near-surface...

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  4. 58. 3D density models from normal modes
    Prof. Arwen Deuss (Utrecht University)
    05/07/2023 11:00
    Talk

    Normal modes, or whole Earth oscillations, are the only seismic data that are able to constrain density in the Earth in addition to velocity. Thus, normal modes are key for comparing and combining with constraints on density from neutrino data.

    Normal modes are studied by using large earthquakes and Fourier transforming week-long seismograms from the time domain to the frequency domain....

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  5. 44. Neutrino Tomography with 3D Earth Models
    Rebekah Pestes (APC/IPGP)
    05/07/2023 11:30
    Talk

    (REMOTE)

    Neutrinos can be used to study the interiors of various objects that are difficult to fully probe by classical means. In the case of the Earth, they provide complementary information to seismic waves because of the imprint of matter effects on their oscillations. This alternative approach may bring new insights on open questions regarding the composition, structure, and dynamics...

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  6. 13. Round table on inversion methods and data combination
    Dr Joao Coelho (APC / CNRS), Prof. Sanjib Kumar Agarwalla (Institute of Physics, Bhubneswar, India & University of Wisconsin-Madison, USA)
    05/07/2023 11:50
  7. 12. 3D density models from normal modes
    Prof. Arwen Deuss (University of Utrecht)
  8. 11. An example of combined inversion: muon tomography
    Dr Marina Rosas-Carbajal (IPGP)
  9. 9. Computational methods for seismic inversion/tomography
    Dr Sebastian Noe (ETH, Zürich)
  10. 37. Neutrino Tomography with 3D Earth models
    Dr Rebekah Pestes (APC/IPGP)
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