ESTIMATION OF INTERSTATION GREEN ’ S FUNCTIONS IN THE LONG-PERIOD RANGE ( 2-10 S ) FROM CONTINUOUS RECORDS OF F-NET BROADBAND SEISMOGRAPH NETWORK IN SOUTHWESTERN JAPAN
ESTIMATION OF INTERSTATION GREEN ’ S FUNCTIONS IN THE LONG-PERIOD RANGE ( 2-10 S ) FROM CONTINUOUS RECORDS OF F-NET BROADBAND SEISMOGRAPH NETWORK IN SOUTHWESTERN JAPAN
复制标题
根据日本西南部F-NET宽带地震网连续记录估计格林站长周期(2-10S)的函数
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
T. Iwata
中科院分区：
文献类型：
--
作者：
K. Asano;A. Iwaki;T. Iwata
我们应用地震干涉测量的全年连续记录从24个F-net宽带站的NIED在日本西南部。我们提取了站间绿色函数的互相关211站对的站间距离小于400公里。采用一位归一化的方法对非平稳信号进行抑制。根据该结果识别出根据站间距离传播的瑞利波型信号。在2和10秒之间的周期范围内的群速度估计为所有站对的多重滤波器分析。在北方地区，群速度比南方地区快，这表明这两个地区之间的表层剪切波速度的差异。然后，将观测到的台站间绿色函数与岩田等人[2008]提出的利用地震学信息进行地震动预测的三维地壳速度模型计算出的理论绿色函数进行比较，对模型进行验证和更新。该三维速度模型由包括俯冲板片在内的9个均匀层组成。我们正在改进速度模型，通过比较模拟和观测的站间绿色的功能，包括在最上层的P波和S波速度的区域依赖。
We applied the seismic interferometry to the whole-year continuous records from 24 F-net broadband stations of NIED in southwestern Japan. We extracted the interstation Green’s functions by taking the cross-correlations of 211 station-pairs whose interstation distances are less than 400 km. The one-bit normalization is used to suppress the nonstationary signals. The Rayleighwave type signal which propagates according to the interstation distance is recognized from this result. The group velocities in the period range between 2 and 10 s are estimated for all station-pairs by the multiple filter analyses. In northern region the estimated group velocity is faster than the southern region, which suggests the difference of shear-wave velocity in the surface layers between these regions. Then, we compared the observed interstation Green’s functions with the theoretical Green’s functions calculated from the three-dimensional crustal velocity model, which was proposed for ground motion prediction by compiling seismological information by Iwata et al. [2008], to validate and update the model. This three-dimensional velocity model is composed of 9 homogeneous layers including subducting slab. We are improving the velocity model by comparing the simulated and observed interstation Green's functions including the regional dependence on Pand S-wave velocities in the uppermost layer.
Belle II实验中B0→KS0π0γ过程的CP不对称性分析研究
DOI：
--
发表时间：
2022
期刊：
影响因子：
--
作者：
Sakane Fumio;Hoshino Fumi;Murakami Chiaki;植松 祐真
通讯作者：
植松 祐真
近畿地区盆地、地壳结构模型与长周期地震动
DOI：
--
发表时间：
2006
期刊：
Proc. International Workshop on Long-Period Ground Motion Simulation and Velocity Structures
影响因子：
--
作者：
Iwata;T. et al.
通讯作者：
T. et al.
近畿地区强地震动模拟的盆地和地壳速度结构模型
DOI：
--
发表时间：
2008
期刊：
Journal of Seismology 12
影响因子：
--
作者：
Iwata;T. T. Kagawa A. Petukhin;and Y. Onishi
通讯作者：
and Y. Onishi