地震计
宽带
地震学
地质学
航程(航空)
同种类的
噪音(视频)
光圈(计算机存储器)
地震阵列
计算机科学
工程类
声学
电信
航空航天工程
物理
人工智能
图像(数学)
热力学
作者
V. Mandic,Victor C. Tsai,Gary L. Pavlis,T. Prestegard,Daniel Bowden,P. M. Meyers,Ross Caton
出处
期刊:Seismological Research Letters
[Seismological Society]
日期:2018-08-22
卷期号:89 (6): 2420-2429
被引量:14
摘要
ABSTRACT Seismometer deployments are often confined to near the Earth’s surface for practical reasons, despite the clear advantages of deeper seismometer installations related to lower noise levels and more homogeneous conditions. Here, we describe a 3D broadband seismometer array deployed at the inactive Homestake Mine in South Dakota, which takes advantage of infrastructure originally setup for mining and is now used for a range of scientific experiments. The array consists of 24 stations, of which 15 were underground, with depths ranging from 300 ft (91 m) to 4850 ft (1478 m), and with a 3D aperture of ∼1.5 km in each direction, thus spanning a 3D volume of about 3.4 km3. We describe unique research opportunities and challenges related to the 3D geometry, including the generally low ambient noise levels, the strong coherency between observed event waveforms across the array, and the technical challenges of running the network. This article summarizes preliminary results obtained using data acquired by the Homestake array, illustrating the range of possible studies supported by the data.
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