A Community Experiment to Record the Full Seismic Wavefield in Oklahoma
A Community Experiment to Record the Full Seismic Wavefield in Oklahoma
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记录俄克拉荷马州完整地震波场的社区实验
DOI：
10.1785/0220180079
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发表时间：
2018
影响因子：
3.3
通讯作者：
R. Woodward
中科院分区：
文献类型：
--
作者：
J. Sweet;Kent R. Anderson;S. Bilek;M. Brudzinski;Xiaowei Chen;H. DeShon;C. Hayward;M. Karplus;K. Keranen;C. Langston;F. Lin;M. Beatrice Magnani;R. Woodward
由于仪器、计算能力和数据分析技术的进步，通过部署大量地震仪（也称为大N部署）并分析所得到的大型数据集来观察完整的地震波场现在比以往任何时候都更加可行。2015年，地震学联合研究机构（IRIS）提出了一项实地部署，为研究界提供新技术的经验，以便在多个空间和时间尺度上使用一系列仪器（三分量[3C]金属式传感器，宽带和次声）获得完整的波场观测。实验的目标是展示节点传感器的现场使用，提供一个可以通过创新技术分析的引人注目的数据集，并评估新阵列设计和仪器（特别是3C节点）的性能。由此产生的IRIS波场演示社区实验于2016年夏天在俄克拉荷马州中北部进行，收集的数据立即在IRIS数据管理中心（网络代码YW）开放和可用，并提供了一个独特且科学丰富的数据集，以促进我们对完整地震波场的理解。一个关键的发现是，通过掩埋部署中使用的3C节点传感器，在0.01-100 s的宽范围内实现了显著较低的水平噪声水平。
Observing the full seismic wavefield by deploying large numbers of seismometers (also known as large-N deployments) and analyzing the resultant large datasets is now more feasible than ever before as a result of advances in instrumentation, computational power, and data analysis techniques. In 2015, the Incorporated Research Institutions for Seismology (IRIS) proposed a field deployment to provide the research community with experience in new techniques for obtaining full wavefield observations using a range of instrumentation (threecomponent [3C] nodal-style sensors, broadbands, and infrasound) at multiple spatial and temporal scales. The goals of the experiment were to demonstrate the field use of the nodal sensors, contribute a compelling dataset that could be analyzed through innovative techniques, and evaluate the performance of new array designs and instruments (particularly the 3C nodes). The resulting IRIS Wavefields Demonstration Community Experiment, conducted in north-central Oklahoma during the summer of 2016, collected data that were immediately made open and available at the IRIS Data Management Center (network code YW) and provided a unique and scientifically rich dataset to advance our understanding of the full seismic wavefield. A key finding was that by burying the 3C nodal sensors used in the deployment, substantially lower horizontal noise levels were achieved across a wide range of periods spanning 0.01–100 s.
基于零滞后交叉相关振幅场的焦斑成像：在圣哈辛托断层带密集阵列数据中的应用
DOI：
10.1002/2016jb013014
发表时间：
2016
期刊：
Journal of Geophysical Research: Solid Earth
影响因子：
--
作者：
Hillers, G.;Roux, P.;Campillo, M.;Ben‐Zion, Y.
通讯作者：
Ben‐Zion, Y.