Effect of variation of shallow Vs profile from the MCMC inversion to variability of nonlinear soil amplification

H. Yamanaka

Effect of variation of shallow Vs profile from the MCMC inversion to variability of nonlinear soil amplification

Saifuddin^*, H. Yamanaka

^*Corresponding author for this work

Tokyo Institute of Technology

Research output: Contribution to conference › Paper › peer-review

Abstract

In this study, we discuss effects of an observational error of phase velocity on a shallow phase velocity profile from a numerical case. Uncertainty in S-wave velocity profile is obtained from inversion of the phase velocity using the Markov-Chain Monte Carlo. The uncertainty of S-wave velocity profile is used to estimate the variability of nonlinear soil amplification. Variability of linear amplification is also estimated as the comparison to the nonlinear one. We find that the nonlinear amplification has less variability than linear response because of decrease of shear modulus and the increase of damping in nonlinear amplification.

Original language	English
Publication status	Published - 2018
Externally published	Yes
Event	EAGE-HAGI 1st Asia Pacific Meeting on Near Surface Geoscience and Engineering - Yogyakarta, Indonesia Duration: 9 Apr 2018 → 13 Apr 2018

Conference

Conference	EAGE-HAGI 1st Asia Pacific Meeting on Near Surface Geoscience and Engineering
Country/Territory	Indonesia
City	Yogyakarta
Period	9/04/18 → 13/04/18

Cite this

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title = "Effect of variation of shallow Vs profile from the MCMC inversion to variability of nonlinear soil amplification",

abstract = "In this study, we discuss effects of an observational error of phase velocity on a shallow phase velocity profile from a numerical case. Uncertainty in S-wave velocity profile is obtained from inversion of the phase velocity using the Markov-Chain Monte Carlo. The uncertainty of S-wave velocity profile is used to estimate the variability of nonlinear soil amplification. Variability of linear amplification is also estimated as the comparison to the nonlinear one. We find that the nonlinear amplification has less variability than linear response because of decrease of shear modulus and the increase of damping in nonlinear amplification.",

author = "Saifuddin and H. Yamanaka",

note = "Publisher Copyright: {\textcopyright} 2018 European Association of Geoscientists and Engineers EAGE. All rights reserved.; EAGE-HAGI 1st Asia Pacific Meeting on Near Surface Geoscience and Engineering ; Conference date: 09-04-2018 Through 13-04-2018",

year = "2018",

language = "English",

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TY - CONF

T1 - Effect of variation of shallow Vs profile from the MCMC inversion to variability of nonlinear soil amplification

AU - Saifuddin,

AU - Yamanaka, H.

PY - 2018

Y1 - 2018

N2 - In this study, we discuss effects of an observational error of phase velocity on a shallow phase velocity profile from a numerical case. Uncertainty in S-wave velocity profile is obtained from inversion of the phase velocity using the Markov-Chain Monte Carlo. The uncertainty of S-wave velocity profile is used to estimate the variability of nonlinear soil amplification. Variability of linear amplification is also estimated as the comparison to the nonlinear one. We find that the nonlinear amplification has less variability than linear response because of decrease of shear modulus and the increase of damping in nonlinear amplification.

AB - In this study, we discuss effects of an observational error of phase velocity on a shallow phase velocity profile from a numerical case. Uncertainty in S-wave velocity profile is obtained from inversion of the phase velocity using the Markov-Chain Monte Carlo. The uncertainty of S-wave velocity profile is used to estimate the variability of nonlinear soil amplification. Variability of linear amplification is also estimated as the comparison to the nonlinear one. We find that the nonlinear amplification has less variability than linear response because of decrease of shear modulus and the increase of damping in nonlinear amplification.

UR - http://www.scopus.com/inward/record.url?scp=85050285932&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85050285932

T2 - EAGE-HAGI 1st Asia Pacific Meeting on Near Surface Geoscience and Engineering

Y2 - 9 April 2018 through 13 April 2018

ER -

Effect of variation of shallow Vs profile from the MCMC inversion to variability of nonlinear soil amplification

Abstract

Conference

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