S31D:
Imaging the Earth II: From Data to Processes on Regional to Global Scales IV

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Session ID#: 17910

Session Description:
Through seismic imaging we infer the Earth’s dynamics, composition and evolution. Our view of the Earth is transforming with time thanks to the advent of high-density networks, new modeling techniques, and unprecedented HPC capacity. We invite presentations on seismic imaging from regional to global scales with special focus on quantitative inferences of Earth dynamics as well as discussions on the imaging method resolution that could limit our interpretations. We also welcome presentations on novel techniques that harness large emerging data sets, original measurements, and modern computational methods to develop these intriguing images. Topics like the joint inversion of complementary geophysical data sets, forward and inverse modeling of full waveforms, seismic interferometry, and probabilistic approaches will be gladly received. This session is complementary to session "Imaging the Earth I: Theory and methods at reservoir and local scales". Together, they are intended to promote communication between exploration and global seismology.
Primary Convener:  Andreas Fichtner, ETH Zurich, Institute of Geophysics, Zurich, Switzerland
Conveners:  Andreas Fichtner, ETH Zurich, Institute of Geophysics, Zurich, Switzerland, Carene S Larmat, Los Alamos National Laboratory, Los Alamos, NM, United States and Nori Nakata, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States
Chairs:  Carene S Larmat, Los Alamos National Laboratory, Los Alamos, NM, United States and Monica Maceira, Oak Ridge National Laboratory, Oak Ridge, TN, United States
OSPA Liaison:  Nori Nakata, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States

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

3260 Inverse theory [MATHEMATICAL GEOPHYSICS]
3275 Uncertainty quantification [MATHEMATICAL GEOPHYSICS]
7270 Tomography [SEISMOLOGY]
7290 Computational seismology [SEISMOLOGY]

Abstracts Submitted to this Session:

Generalised interferometry by correlation (131123)
Andreas Fichtner, ETH Zurich, Institute of Geophysics, Zurich, Switzerland, Laurent Stehly, University Grenoble Alpes, ISTerre, Institute of Earth Sciences, Grenoble, France, Laura Ermert, ETH Zurich, Department of Earth Sciences, Institute of Geophysics, Zurich, Switzerland and Christian Boehm, Institute of Geophysics, ETH Zurich, Zurich, Switzerland
Velocity inversion using multi scattered Wavefields from natural and active sources (121722)
Tariq Alkhalifah, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
Layering of Structure in the North American Upper Mantle: Combining Short Period Constraints and Full Waveform Tomography (136052)
Marco Calo, National Autonomous University of Mexico, Ciudad DE Armería, Mexico, Corinna Roy, University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom, Thomas Bodin, LGL-TPE, Université Claude Bernard, Lyon1, CNRS, ENS, Villeurbanne, France and Barbara A Romanowicz, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States
Constructing optimal observables for density tomography (142843)
Nienke Blom, University of Cambridge, Cambridge, United Kingdom and Andreas Fichtner, ETH Zurich, Institute of Geophysics, Zurich, Switzerland
Advances in Global Adjoint Tomography --- Data Assimilation and Inversion Strategy (154005)
Youyi Ruan1, Wenjie Lei2, Matthieu Philippe Lefebvre1, Ryan T Modrak1, James A Smith3, Ebru Bozdag4 and Jeroen Tromp2, (1)Princeton University, Princeton, NJ, United States, (2)Princeton University, Geosciences, Princeton, NJ, United States, (3)Princeton University, Civil and Environmental Engineering, Princeton, United States, (4)University of Nice-Sophia Antipolis, Nice, France
Salvus: A flexible open-source package for waveform modelling and inversion from laboratory to global scales (157734)
Michael Afanasiev1, Christian Boehm2, Martin van Driel3, Lion Krischer1, Dave May3, Max Rietmann3 and Andreas Fichtner4, (1)ETH Zurich, Department of Earth Sciences, Institute of Geophysics, Zurich, Switzerland, (2)Institute of Geophysics, ETH Zurich, Zurich, Switzerland, (3)ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland, (4)ETH Zurich, Institute of Geophysics, Zurich, Switzerland
A complete tomography of the Earth’s interior with floating seismometers in the oceans: the EarthScope-Oceans (168384)
Yongshun John Chen, Southern University of Science and Technology, Ocean Science and Engineering, Shenzhen, China and Guust Nolet, Géoazur - Université Nice Sophia Antipolis, Valbonne, France
Strategy for Crustal-scale Velocity Model Building of a complex subduction system from the OBS data by Full Waveform Inversion (174141)
Andrzej Górszczyk, Institute of Geophysics PAS, Warsaw, Poland, Michal Malinowski, Institute of Geophysics Polish Academy of Sciences, Warsaw, Poland and Stephane Operto, Géoazur - Université Nice Sophia Antipolis, Valbonne, France

See more of: Seismology