The Collaborative Seismic Earth Model: Generation 1

Andreas Fichtner and Dirk-Philip van Herwaarden and Michael Afanasiev and Saule Simute and Lion Krischer and Yesim Cubuk-Sabuncu and Tuncay Taymaz and Lorenzo Colli and Erdinc Saygin and Antonio Villasenor and Jeannot Trampert and Paul Cupillard and Hans-Peter Bunge and Heiner Igel. ( 2018 )
in: Geophys. Res. Lett., 45:9 (4007-4016)

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.

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BibTeX Reference

@ARTICLE{Fichtner2018GRL,
    author = { Fichtner, Andreas and van Herwaarden, Dirk-Philip and Afanasiev, Michael and Simute, Saule and Krischer, Lion and Cubuk-Sabuncu, Yesim and Taymaz, Tuncay and Colli, Lorenzo and Saygin, Erdinc and Villasenor, Antonio and Trampert, Jeannot and Cupillard, Paul and Bunge, Hans-Peter and Igel, Heiner },
     title = { The Collaborative Seismic Earth Model: Generation 1 },
     month = { "may" },
   journal = { Geophys. Res. Lett. },
    volume = { 45 },
    number = { 9 },
      year = { 2018 },
     pages = { 4007-4016 },
      issn = { 00948276 },
       doi = { 10.1029/2018gl077338 },
  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. }
}