Method to find the Minimum 1D Linear Gradient Model for Seismic Tomography

• Autorzy: Smaglichenko T. A. , Bjarnason I. T. , Smaglichenko A. V. , Jacoby W. R.

Identyfikatory

DOI

10.3233/FI-2016-1382

• Języki publikacji: EN

Abstrakty

EN

The changes in the state of a geophysical médium before a strong earthquake can be found by studying of 3D seismic velocity images constructed for consecutive time windows. A preliminary step is to see changes with time in a minimum 1D model. In this paper we develop a method that finds the parameters of the minimum linear gradient model by applying a twodimensional Taylor series of the observed data for the seismic ray and by performing least-square minimization for all seismic rays. This allows us to obtain the mean value of the discrete observed variable, close to zero value.

Słowa kluczowe

EN

linear gradient of velocity; local earthquake tomography; minimum 1D model

• Wydawca: IOS Press
• Czasopismo: Fundamenta Informaticae
• Rocznik: 2016
• Tom: Vol. 146, nr 2
• Strony: 211--217
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Smaglichenko T. A.

• Institute of Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland

autor

Bjarnason I. T.

• Institute of Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland

autor

Smaglichenko A. V.

• Institute of Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland

autor

Jacoby W. R.

• Institute of Earth Sciences, Johannes Gutenberg University Mainz, D 55099 Mainz, Germany

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.