mFAST: A MATLAB toolbox for ocean bottom seismometer refraction first-arrival traveltime tomography

First-arrival seismic traveltime tomography (FAST) is a well-established technique to estimate subsurface velocity structures. Although several existing open-source packages are available for first-arrival traveltime tomography, most were written in compiled languages and lack sufficient extendibili...

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Main Author: Bin Liu
Format: Article
Language:English
Published: Science Press 2022-08-01
Series:Earth and Planetary Physics
Subjects:
Online Access:http://www.eppcgs.org/article/doi/10.26464/epp2022044?pageType=en
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author Bin Liu
author_facet Bin Liu
author_sort Bin Liu
collection DOAJ
description First-arrival seismic traveltime tomography (FAST) is a well-established technique to estimate subsurface velocity structures. Although several existing open-source packages are available for first-arrival traveltime tomography, most were written in compiled languages and lack sufficient extendibility for new algorithms and functionalities. In this work, we develop an open-source, self-contained FAST package based on MATLAB, one of the most popular interpreted scientific programming languages, with a focus on ocean bottom seismometer refraction traveltime tomography. Our package contains a complete traveltime tomography workflow, including ray-tracing-based first-arrival traveltime computation, linearized inversion, quality control, and high-quality visualization. We design the package as a modular toolbox, making it convenient to integrate new algorithms and functionalities as needed. At the current stage, our package is most efficient for performing FAST for two-dimensional ocean bottom seismometer surveys. We demonstrate the efficacy and accuracy of our package by using a synthetic data example based on a modified Marmousi model.
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spelling doaj.art-4ce5ca9cbfa24f9a8bab64fa4ea1fb132022-12-22T03:19:39ZengScience PressEarth and Planetary Physics2096-39552022-08-016548749410.26464/epp2022044TR326-liubin-FmFAST: A MATLAB toolbox for ocean bottom seismometer refraction first-arrival traveltime tomographyBin Liu0Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, ChinaFirst-arrival seismic traveltime tomography (FAST) is a well-established technique to estimate subsurface velocity structures. Although several existing open-source packages are available for first-arrival traveltime tomography, most were written in compiled languages and lack sufficient extendibility for new algorithms and functionalities. In this work, we develop an open-source, self-contained FAST package based on MATLAB, one of the most popular interpreted scientific programming languages, with a focus on ocean bottom seismometer refraction traveltime tomography. Our package contains a complete traveltime tomography workflow, including ray-tracing-based first-arrival traveltime computation, linearized inversion, quality control, and high-quality visualization. We design the package as a modular toolbox, making it convenient to integrate new algorithms and functionalities as needed. At the current stage, our package is most efficient for performing FAST for two-dimensional ocean bottom seismometer surveys. We demonstrate the efficacy and accuracy of our package by using a synthetic data example based on a modified Marmousi model.http://www.eppcgs.org/article/doi/10.26464/epp2022044?pageType=enocean bottom seismometer (obs)first-arrival traveltime tomographyopen sourcematlab
spellingShingle Bin Liu
mFAST: A MATLAB toolbox for ocean bottom seismometer refraction first-arrival traveltime tomography
Earth and Planetary Physics
ocean bottom seismometer (obs)
first-arrival traveltime tomography
open source
matlab
title mFAST: A MATLAB toolbox for ocean bottom seismometer refraction first-arrival traveltime tomography
title_full mFAST: A MATLAB toolbox for ocean bottom seismometer refraction first-arrival traveltime tomography
title_fullStr mFAST: A MATLAB toolbox for ocean bottom seismometer refraction first-arrival traveltime tomography
title_full_unstemmed mFAST: A MATLAB toolbox for ocean bottom seismometer refraction first-arrival traveltime tomography
title_short mFAST: A MATLAB toolbox for ocean bottom seismometer refraction first-arrival traveltime tomography
title_sort mfast a matlab toolbox for ocean bottom seismometer refraction first arrival traveltime tomography
topic ocean bottom seismometer (obs)
first-arrival traveltime tomography
open source
matlab
url http://www.eppcgs.org/article/doi/10.26464/epp2022044?pageType=en
work_keys_str_mv AT binliu mfastamatlabtoolboxforoceanbottomseismometerrefractionfirstarrivaltraveltimetomography