Reviewing of stochastic description of the spatial variation of ground motion and coherence function model

This study addresses the topic of the spatial variation of seismic ground motions as evaluated from data recorded at dense instrument arrays. It concentrates on the stochastic description of the spatial variation, and focuses on spatial coherency. The estimation of coherency from recorded data and i...

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Main Authors: Ruifang Yu, Shaoqing Wang, Yanxiang Yu
Format: Article
Language:zho
Published: Editorial Office of Reviews of Geophysics and Planetary Physics 2021-03-01
Series:地球与行星物理论评
Subjects:
Online Access:https://www.sjdz.org.cn/en/article/doi/10.19975/j.dqyxx.2020-012
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author Ruifang Yu
Shaoqing Wang
Yanxiang Yu
author_facet Ruifang Yu
Shaoqing Wang
Yanxiang Yu
author_sort Ruifang Yu
collection DOAJ
description This study addresses the topic of the spatial variation of seismic ground motions as evaluated from data recorded at dense instrument arrays. It concentrates on the stochastic description of the spatial variation, and focuses on spatial coherency. The estimation of coherency from recorded data and its interpretation are presented. Some empirical and semi-empirical coherency models are described, and their validity and limitations in terms of physical causes discussed. Finally, by comparing and analyzing the simulation results of different coherence function models on the spatial correlation of ground motion, some suggestions on the selection of coherence function model are put forward.
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spelling doaj.art-e02751cd974a4a1698a4129e5db4af692023-03-28T07:10:45ZzhoEditorial Office of Reviews of Geophysics and Planetary Physics地球与行星物理论评2097-18932021-03-0152219420410.19975/j.dqyxx.2020-0122020-012Reviewing of stochastic description of the spatial variation of ground motion and coherence function modelRuifang Yu0Shaoqing Wang1Yanxiang Yu2Institute of Geophysics, China Earthquake Administration, Beijing 100081, ChinaInstitute of Geophysics, China Earthquake Administration, Beijing 100081, ChinaInstitute of Geophysics, China Earthquake Administration, Beijing 100081, ChinaThis study addresses the topic of the spatial variation of seismic ground motions as evaluated from data recorded at dense instrument arrays. It concentrates on the stochastic description of the spatial variation, and focuses on spatial coherency. The estimation of coherency from recorded data and its interpretation are presented. Some empirical and semi-empirical coherency models are described, and their validity and limitations in terms of physical causes discussed. Finally, by comparing and analyzing the simulation results of different coherence function models on the spatial correlation of ground motion, some suggestions on the selection of coherence function model are put forward.https://www.sjdz.org.cn/en/article/doi/10.19975/j.dqyxx.2020-012spatial variation of ground motioncoherence functiondense seismic arraystochastic description
spellingShingle Ruifang Yu
Shaoqing Wang
Yanxiang Yu
Reviewing of stochastic description of the spatial variation of ground motion and coherence function model
地球与行星物理论评
spatial variation of ground motion
coherence function
dense seismic array
stochastic description
title Reviewing of stochastic description of the spatial variation of ground motion and coherence function model
title_full Reviewing of stochastic description of the spatial variation of ground motion and coherence function model
title_fullStr Reviewing of stochastic description of the spatial variation of ground motion and coherence function model
title_full_unstemmed Reviewing of stochastic description of the spatial variation of ground motion and coherence function model
title_short Reviewing of stochastic description of the spatial variation of ground motion and coherence function model
title_sort reviewing of stochastic description of the spatial variation of ground motion and coherence function model
topic spatial variation of ground motion
coherence function
dense seismic array
stochastic description
url https://www.sjdz.org.cn/en/article/doi/10.19975/j.dqyxx.2020-012
work_keys_str_mv AT ruifangyu reviewingofstochasticdescriptionofthespatialvariationofgroundmotionandcoherencefunctionmodel
AT shaoqingwang reviewingofstochasticdescriptionofthespatialvariationofgroundmotionandcoherencefunctionmodel
AT yanxiangyu reviewingofstochasticdescriptionofthespatialvariationofgroundmotionandcoherencefunctionmodel