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The Collaborative Seismic Earth Model: Generation 1
Author(s) -
Fichtner Andreas,
van Herwaarden DirkPhilip,
Afanasiev Michael,
Simutė Saulė,
Krischer Lion,
ÇubukSabuncu Yeşim,
Taymaz Tuncay,
Colli Lorenzo,
Saygin Erdinc,
Villaseñor Antonio,
Trampert Jeannot,
Cupillard Paul,
Bunge HansPeter,
Igel Heiner
Publication year - 2018
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2018gl077338
Subject(s) - inversion (geology) , earth model , computer science , earth structure , geology , geophysics , seismology , tectonics
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.