用于监测韩国地震声学研究阵列的数据质量控制工具

IF 1.6 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Journal of Seismology Pub Date : 2023-07-26 DOI:10.1007/s10950-023-10164-6
Junghyun Park, Chris Hayward, Byung-Il Kim, Brian Stump, Il-Young Che, Stephen Arrowsmith, Kwangsu Kim
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引用次数: 1

摘要

数据评估工具旨在提高韩国六个地震声学研究阵列产生的地震和次声数据的数据质量和实时交付。使用了三种不同类型的工具,包括:(1)数据质量监测;(2)站内健康状态(SOH)实时监测;(3)数据遥测与档案监测。数据质量工具量化了数据差距、地震仪方向、次声极性、数字化仪定时误差、绝对噪声水平以及位于同一位置的传感器和仪器产生的信号之间的相干性。有些工具利用了阵列中位于同一位置或间隔很近的仪器。根据参考地震仪与阵列中每个地震仪之间的均方根误差,通过连续估计紧密间隔的水平地震分量的相对方位来识别数字化仪的定时误差。地震和次声数据的噪声水平估计用于评估当地环境影响、季节性噪声变化和维护目的的仪器变化。SOH监测系统包括单个辅助设备(电池、太阳能或与通信相关的组件)的状态,并为操作人员提供将当前状态与历史数据进行比较的能力,并可能对系统进行远程更改。最后,监测数据遥测和整体数据存档提供了对网络性能的评估。这些工具使阵列运营商能够近乎实时地评估与单个仪器或系统组件相关的操作问题,以提高每个地震声阵列的数据质量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Data quality control tools used to monitor seismoacoustic research arrays in South Korea

Data assessment tools designed to improve data quality and real-time delivery of seismic and infrasound data produced by six seismoacoustic research arrays in South Korea are documented and illustrated. Three distinct types of tools are used including the following: (1) data quality monitoring; (2) real-time station state of health (SOH) monitoring; and (3) data telemetry and archive monitoring. The data quality tools quantify data gaps, seismometer orientation, infrasound polarity, digitizer timing errors, absolute noise levels, and coherence between co-located sensors and instrument-generated signals. Some of the tools take advantage of co-located or closely spaced instruments in the arrays. Digitizer timing errors are identified by continuous estimates of the relative orientation of closely spaced horizontal seismic components based on the root-mean-square error between a reference seismometer and each seismometer in the array. Noise level estimates for seismic and infrasound data are used to assess local environmental effects, seasonal noise variations, and instrumentation changes for maintenance purposes. The SOH monitoring system includes the status of individual ancillary equipment (battery, solar power, or components associated with communication) and provides the operator the capability to compare the current status to the historical data and possibly make remote changes to the system. Finally, monitoring data telemetry and overall data archival provide an assessment of network performance. This collection of tools enables array operators to assess operational issues in near real-time associated with individual instruments or components of the system in order to improve data quality of each seismoacoustic array.

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来源期刊
Journal of Seismology
Journal of Seismology 地学-地球化学与地球物理
CiteScore
3.30
自引率
6.20%
发文量
67
审稿时长
3 months
期刊介绍: Journal of Seismology is an international journal specialising in all observational and theoretical aspects related to earthquake occurrence. Research topics may cover: seismotectonics, seismicity, historical seismicity, seismic source physics, strong ground motion studies, seismic hazard or risk, engineering seismology, physics of fault systems, triggered and induced seismicity, mining seismology, volcano seismology, earthquake prediction, structural investigations ranging from local to regional and global studies with a particular focus on passive experiments.
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