次声波监测台阵及地震次声研究进展_郑海刚.pdf

2023 年第 38 卷 第1期2023，38(1):0122-0136地球物理学进展Progress in Geophysicshttp:/wwwprogeophyscnISSN 1004-2903CN 11-2982/P郑海刚，黎哲君，黄金水，等2023 次声波监测台阵及地震次声研究进展 地球物理学进展，38(1):0122-0136，doi:106038/pg2023GG0068ZHENG HaiGang，LI ZheJun，HUANG JinShui，et al 2023 Progress in infrasound monitoring array and seismic infrasound research Progress inGeophysics(in Chinese)，38(1):0122-0136，doi:10 6038/pg2023GG0068次声波监测台阵及地震次声研究进展Progress in infrasound monitoring array and seismic infrasound research郑海刚1，2，3，黎哲君2，3，黄金水1，3，王燚坤2，3，王雪莹2ZHENG HaiGang1，2，3，LI ZheJun2，3，HUANG JinShui1，3，WANG YiKun2，3，WANG XueYing2收稿日期2022-03-15;修回日期2022-09-13投稿网址http:/www progeophys cn基金项目安徽蒙城地球物理国家野外观测站联合开放基金(MEMGO-202216，MENGO-202112)资助第一作者简介郑海刚，男，1981 年生，博士研究生，高级工程师，主要从事地震地质及地震形变应用等研究 E-mail:zhghfut mail ustc edu cn1 中国科学技术大学地球和空间科学学院，合肥2300262 安徽省地震局，合肥2300313 蒙城地球物理国家野外科学观测研究站，亳州2335001 School of Earth and Space Sciences，University of Science and Technology of China，Hefei 230026，China2 Anhui Seismological Bureau，Hefei 230031，China3 Mengcheng Geophysics National Field Scientific Observation and esearch Station，Bozhou 233500，China摘要通过文献调研，本文回顾了国际国内主要次声波观测台阵和地震次声波的最新研究进展，目的是寻找两者的差距与不足，为国内地震次声波监测台阵建设和地震次声研究提供有益的借鉴 文章首先对全球最大、分布最广泛的 IMS 次声观测台阵布设方式及降低风噪系统进行了详细归纳，与国内主要次声台阵在这两方面的进展对比后发现，国际次声台阵主要以小孔径多子台的方式布设，且大多配备有不同类型的降低风噪系统;国内次声台阵主要以广域台阵方式布设，仅有少部分实验性的小孔径次声台阵，且大多未布设降低风噪系统 随后文章对各类次声台阵在地震监测预报方面的研究成果进行了认真梳理，国内外对比可以发现，国内地震次声研究主要集中在震前次声方面，国际地震次声研究主要以同震次声研究为主，主要包括震中次声、衍射次声和本地次声的识别分析，以及应用相关次声信号开展次声源定位、地震动影响分析等工作 分析结果认为，今后国内地震次声监测台阵建设方面应该进一步加强小孔径多子台台阵建设及降低风噪系统布设，这更有利于次声互相关信号提取及提高数据信噪比;国内地震次声研究需要继续开拓思路，在关注震前次声波研究的同时，进一步加强同震次声波的分析，这更有利于追踪地震次声研究最新趋势，拓展国内地震次声研究新领域AbstractThrough the method of literature research，thispaper reviews the latest study progress of the main seismicinfrasonic observatory array and earthquake infrasound athome and abroad The main purpose is to find the gap anddeficiency between domestic and international，and providebeneficialreferencefortheconstructionofseismicinfrasonic observatory array and earthquake infrasonicinvestigation in China The infrasonic observatory array ofthe International Monitoring System(IMS)，which wasestablished and operated by the Comprehensive Nuclear-Test-Ban Treaty Organization(CTBTO)，is the largest andmost widely distributed infrasound array all over the worldBecause most infrasound array layout in other countries issimilar to IMS infrasound array，such as Korean，Japanese，American，and so on，the article only takes IMS infrasoundarray as an example to summarize infrasound array layoutand wind noise reduction system of the internationalinfrasonic array International，most of the infrasonic arraysare small aperture with multi sub-nodes，which has threemajor dispositions，including four sub-nodes array，eightsub-nodes array and nine sub-nodes array;the wind noisereduction system is composed of a low impedance air inlet，a guide pipe and a composite chamber，which has fourmain kinds，like rosette，star，hexagonal closed pack andradial Interiorly，most of infrasound arrays are wide-areaarrays and only a few experimental array is small aperturewith many sub-nodes Both of them are not deployed withwindnoisereductionsystemsMoreover，thispapersummarized the research achievements of the seismicmonitoringandpredictionappliedtheinfrasoundobservation data Atabroad，theseresearchesmainlyfocused on identification analysis of coseismic infrasound，including epicentral infrasound，diffraction infrasound andlocal infrasound In addition，related infrasound signals areused to locate infrasound sources and analyze the impact of2023，38(1)郑海刚，等:次声波监测台阵及地震次声研究进展(www progeophys cn)关键词次声波;地震;IMS;次声台阵中图分类号P315文献标识码Adoi:10 6038/pg2023GG0068ground motion At home，earthquake infrasound researchmainly concentrated in the previous seismic infrasound，which is applied to predict earthquakes The results showthat the construction of seismic infrasound monitoring arrayand the arrangement of wind noise reduction system shouldbe further strengthened in the future at home，which ismore beneficial to obtain infrasound cross-correlation signaland improve data signal-to-noise ratio More and moreChinese researchers should continue to explore their studyideas While we are paying attention to the research of pre-earthquake infrasound，we should be further strengthen theanalysis of coseismic infrasound，which is more conduciveto tracking the latest trend of seismic infrasound researchandexpandingthenewfieldofseismicinfrasoundresearchKeywordsInfrasound wave;Earthquake;InternationalMonitoring System(IMS);Infrasound array0引言大气中的声波，同光被分为不可见光、可见光和紫外线一样，可分为次声波、可听声波和超声波，它们频率范围分别是:0.002 20 Hz、20 20000 Hz 和20000 Hz(ElGabry et al，2017)本文重点关注次声波，虽然它不能被人类听到，但可以通过仪器监测到，且具有来源广、频率低、衰减小、传播远、穿透能力强等诸多特点(Bittner etal，2010;Blom et al，2015;Liu et al，2021)在日常生活中，很多自然事件和人类活动都可以产生次声波 自然事件的主要次声波来源有:地震(Pilger etal，2019;Johnson et al，2020)，火山喷发(Diaz-Moreno et al，2020;De Angelis et al，2020;Batubara and Yamamoto，2020)，泥石流(Schimmeland Hbl，2016)，滑坡(Moore et al，2017)，雪崩(Marchetti et al，2015)，台风(Chum et al，2018)，海啸(aveloson e