Joint Autocorrelation and Receiver Function Analysis of Sedimentary Structures Using Strong Ground Motion Records
Joint Autocorrelation and Receiver Function Analysis of Sedimentary Structures Using Strong Ground Motion Records
复制标题
利用强地震动记录进行沉积构造的联合自相关和接收函数分析
DOI：
10.1007/s00024-022-03099-5
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发表时间：
2022
影响因子：
2
通讯作者：
Chimoto Kosuke
中科院分区：
文献类型：
--
作者：
Takagi Daisuke;Amemiya Mamoru;Shimada Takahito;池田 大輔;Chimoto Kosuke
利用日本关东盆地成田强震记录，对接收函数和自相关函数进行联合分析，估计了纵波和横波速度的结构以及地震基岩的深度。从当地地震事件诱发的1000多个p波及其尾波资料中，自相关揭示了沉积层中清晰的反射，接收函数揭示了地震基岩中清晰的p和PpPs转换相。利用自相关纵向分量和横向分量的h - κ叠加以及接收函数中的Ps和PpPs相测量沉积物厚度和vs。结果表明，在成田实验中仅利用横向自相关得到的vps结构模型得到了较好的评价，而相应的vps结构模型有待改进。由于h - κ叠加需要一个假设的vpp值，因此合适的vpp值对于准确估计v和沉积物厚度至关重要。因此，对h -κ-VPstack进行频率分析，估计evp、VS和沉积构造厚度。根据这一分析的结果，确定对成田本病例的vsv进行了适当的估计。然而，vpp的估计值低于本研究的估计值。很明显，一个适当的vps假设对于捕获接收函数中的Ps和ppp相位很重要。
Joint analysis of the receiver and autocorrelation functions was performed to estimate the structure of the P- and S-wave velocitiesVPandVSas well as the depth to the seismic bedrock using strong motion records obtained in Narita, Kanto basin, Japan. From data of over 1000 P-waves and their coda induced by local seismic events, the autocorrelation revealed a clear reflection in the sedimentary layer, and the receiver function revealed clear Ps and PpPs converted phases at the seismic bedrock. The sediment thickness andVSwere measured from theH–κstack of the vertical and transverse components of the autocorrelation and the Ps and PpPs phases in the receiver function. The previousVSstructure model obtained with only the transverse autocorrelation in Narita was found to be appropriately evaluated, whereas the correspondingVPstructure model must be improved. Because theH–κstack requires an assumedVPvalue, an appropriate value ofVPis crucial for accurate estimation ofVSand the thickness of the sediment. Thus, the frequency analysis of theH–κ–VPstack was performed to estimateVP,VS, and the thickness of the sedimentary structure. From the results of this analysis,VSwas determined to have been estimated appropriately for the present case in Narita. However,VPhad been estimated to be lower than the value estimated by this study. It is clear that an appropriate assumption ofVPis important to capture the Ps and PpPs phases in the receiver function.
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影响因子：
3.5
作者：
Wessel, P.;Luis, J. F.;Tian, D.
通讯作者：
Tian, D.
深部地下结构测算P to S转换波检测方法研究
DOI：
10.3130/aijs.63.45_2
发表时间：
1998
期刊：
Journal of Structural and Construction Engineering (transactions of Aij)
影响因子：
--
作者：
K. Kobayashi;T. Uetake;Mitsugu Mashimo;Hiroyoshi Kobayashi
通讯作者：
Hiroyoshi Kobayashi
DOI：
10.1029/2018jb016356
发表时间：
2019-04
期刊：
Journal of Geophysical Research: Solid Earth
影响因子：
--
作者：
Jiangtao Li;Xiaodong Song;Pan Wang;Lupei Zhu
通讯作者：
Jiangtao Li;Xiaodong Song;Pan Wang;Lupei Zhu
使用地震干涉测量法对当地地震进行 P-coda 地下勘探
DOI：
10.3124/segj.69.249
发表时间：
2016
期刊：
Butsuri-tansa(geophysical Exploration)
影响因子：
--
作者：
K. Shiraishi;S. Abe;Toru Takahashi;N. Tsumura;T. Ito
通讯作者：
T. Ito
联合环境噪声自相关和莫霍面接收函数分析
影响因子：
2.8
作者：
S. Mroczek;F. Tilmann
通讯作者：
F. Tilmann