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The Collaborative Seismic Earth Model: Generation 1

AuthorsFichtner, Andreas; Villaseñor, Antonio CSIC ORCID CVN ; Igel, Heiner
KeywordsComputational geophysics
Earth structure
Inverse theory
Wave propagation
Issue DateMay-2018
PublisherJohn Wiley & Sons
CitationGeophysical Research Letters,45: 4007–4016 (2018)
AbstractWe 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.
DescriptionAndreas Fichtner et. al.
Publisher version (URL)https://doi.org/10.1029/2018GL077338
Appears in Collections:(Geo3Bcn) Artículos
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