The {{Collaborative Seismic Earth Model}}: {{Generation}} 1

Andreas Fichtner and Dirk-Philip {van Herwaarden} and Michael Afanasiev and Saul\.{e} Simut\.{e} and Lion Krischer and Ye{\c s}im {\c C}ubuk-Sabuncu and Tuncay Taymaz and Lorenzo Colli and Erdinc Saygin and Antonio Villase\~nor and Jeannot Trampert and Paul Cupillard and Hans-Peter Bunge and Heiner Igel. ( 2018 )
in: Geophysical Research Letters, 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.

Download / Links

BibTeX Reference

@ARTICLE{Fichtner2018GRL,
    author = { Fichtner, Andreas and {van Herwaarden}, Dirk-Philip and Afanasiev, Michael and Simut\.{e}, Saul\.{e} and Krischer, Lion and {\c C}ubuk-Sabuncu, Ye{\c s}im and Taymaz, Tuncay and Colli, Lorenzo and Saygin, Erdinc and Villase\~nor, 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 = { Geophysical Research Letters },
    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. }
}