S22C:
Seismic Modeling and Inversion: Exploring the Earth's Interior II


Session ID#: 10451

Session Description:
Seismic tomography is a powerful tool to image the structure of the Earth. This session will focus on case histories studying a variety of geological targets and at different scales. We will address ways in which problems have been solved in real cases.  Major advances have been made in recent years but significant problems, both well-known and lesser-known, remain. These include model resolution, uncertainty, repeatability, and the ambiguities in geological interpretation. Novel approaches to solving common practical problems, illustrated with results using real data, are welcomed. These include the effects of structure outside the modeled region, uneven ray coverage, smoothing, meshing and crustal corrections. Studies that compare real-Earth results obtained using different methods, and assess repeatability, are particularly encouraged. Presentations aimed at non-seismologists, that increase accessibility of tomography results for non-seismological disciplines, are particularly welcomed.
Primary Convener:  Ceri Nunn, Durham University, Department of Earth Sciences, Durham, United Kingdom
Conveners:  Bruce R Julian, Durham University, Department of Earth Sciences, Durham, United Kingdom and Gillian R Foulger, Durham University, Department of Earth Sciences, Durham, United Kingdom
Chairs:  Ceri Nunn, Durham University, Department of Earth Sciences, Durham, United Kingdom and Bruce R Julian, Durham University, Department of Earth Sciences, Durham, United Kingdom
OSPA Liaison:  Ceri Nunn, Durham University, Department of Earth Sciences, Durham, United Kingdom

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • T - Tectonophysics
Index Terms:

3260 Inverse theory [MATHEMATICAL GEOPHYSICS]
3275 Uncertainty quantification [MATHEMATICAL GEOPHYSICS]
7270 Tomography [SEISMOLOGY]
8180 Tomography [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Surface-Wave Tomographic Studies of the Hudson Bay Lithosphere: Implications for Paleoproterozoic Tectonic Processes and the Assembly of the Canadian Shield (Invited) (63800)
Fiona Ann Darbyshire, University of Quebec at Montreal UQAM, Centre de recherche GEOTOP, Montreal, QC, Canada
S-to-P Heterogeneity Ratio in the Lower Mantle and Thermo-Chemical Implications (69458)
Fabio Cammarano, University of Copenhagen, København K, Denmark; Roma Tre University, Department of Science, Rome, Italy, Andrea Tesoniero, University of Copenhagen, Copenhagen, Denmark and Lapo Boschi, Sorbonne Universités, UPMC Univ Paris 06, UMR 7193, ISTeP, F-75005, Paris, France
Imaging Rayleigh Wave Attenuation Beneath North America with USArray (77935)
Colleen A Dalton, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States, Xueyang Bao, University of Rhode Island, Narragansett, RI, United States, Ge Jin, LDEO, Columbia Univ., Palisades, NY, United States and James B Gaherty, Organization Not Listed, Washington, DC, United States
The Role of Synthetic Reconstruction Tests in Seismic Tomography (Invited) (60832)
Nicholas Rawlinson, University of Aberdeen, Aberdeen, United Kingdom and Wim Spakman, Utrecht University, Utrecht, Netherlands

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