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Publication . Article . Other literature type . 2018

The Collaborative Seismic Earth Model: Generation 1

Andreas Fichtner; Dirk Philip van Herwaarden; Michael Afanasiev; Saulė Simutė; Lion Krischer; Yeşim Çubuk-Sabuncu; Tuncay Taymaz; +7 Authors
Open Access
English
Published: 01 May 2018 Journal: Geophysical Research Letters, volume 45, issue 9, pages 4,007-4,016 (issn: 00948276, Copyright policy )
Abstract

We present a general concept for evolutionary, collaborative, multiscale inversion of geophysical data, specifically applied to the construction of a first-generation Collaborative Seismic Earth Model. This is intended to address the limited resources of individual researchers and the often limited use of previously accumulated knowledge. Model evolution rests on a Bayesian updating scheme, simplified into a deterministic method that honors today's computational restrictions. The scheme is able to harness distributed human and computing power. It furthermore handles conflicting updates, as well as variable parameterizations of different model refinements or different inversion techniques. The first-generation Collaborative Seismic Earth Model comprises 12 refinements from full seismic waveform inversion, ranging from regional crustal- to continental-scale models. A global full-waveform inversion ensures that regional refinements translate into whole-Earth structure. ©2018. American Geophysical Union. All Rights Reserved.

This work was supported by the PASC project GeoScale, the CSCS computing time grant ch1, the European Research Council (ERC) under the EU’s Horizon 2020 programme (grant 714069), Istanbul Technical University, the National Science Council of Turkey, the A. v. Humboldt Foundation, and the EU-COST Action ES1401-TIDES-STSM.

Andreas Fichtner et. al.

Peer reviewed

Subjects by Vocabulary

arXiv: Physics::Geophysics

Microsoft Academic Graph classification: Earth structure engineering.material engineering Bayesian inference Computational geophysics Computer science Waveform inversion Earth model Distributed computing Limited resources Inversion (meteorology) Ranging

Subjects

Solid Earth, Computational Geophysics, Modeling, Informatics, Oceanography: General, Numerical Modeling, Natural Hazards, Geological, Physical Modeling, Radio Science, Tomography and Imaging, Seismology, Theory, Tomography, Volcano Seismology, Tectonophysics, Volcanology, Volcano Monitoring, General or Miscellaneous, Techniques Applicable in Three or More Fields, Research Letter, Research Letters, inverse theory, wave propagation, Earth structure, Computational Geophysics, Earth structure, Inverse theory, Seismology, Tomography, Wave propagation, [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], inverse theory; seismology; wave propagation; tomography; Earth structure; computational geophysics, [SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], Geophysics, Earth and Planetary Sciences(all), General Earth and Planetary Sciences

Funded by
EC| EPOS IP
Project
EPOS IP
EPOS Implementation Phase
  • Funder: European Commission (EC)
  • Project Code: 676564
  • Funding stream: H2020 | RIA
Validated by funder
,
EC| CSEM
Project
CSEM
The Collaborative Seismic Earth Model Project
  • Funder: European Commission (EC)
  • Project Code: 714069
  • Funding stream: H2020 | ERC | ERC-STG
Validated by funder
Related to Research communities
EPOS
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Article . 2018
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