云南腾冲火山区地震/次声台阵建设
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摘要
在中央级公益性科研院所基本科研业务专项《地震重点监视区地震与次声联合台阵探测对比试验》支持下,在云南腾冲火山区建设了一个由4个子台组成的三角形地震/次声台阵,首次将宽频带地震计及次声传感器联合部署在强地震活跃区及火山区。本文详细介绍了腾冲火山区地震/次声台阵的建设及其观测系统组成,特别是与次声观测有关的次声降噪滤波系统,并提出了下一步研究工作。
Supported by the fundamental research and development project of the Institute of Geophysics,CEA[CD2]"Comparative experiment of seismo-acoustic array observation in key areas for earthquake surveillance and protection",a seismo-acoustic array,with 4 sub-stations arranged as a triangle (the 4th of which is located near the center of the triangle) was deployed in Tengchong volcanic region of Yunnan Province.The broadband seismometer and infrasonic sensor are jointly deployed,for the first time,in a seismically active area and volcanic area.This paper provides a detailed introduction to the installation and components of the seismo-acoustic array in Tengchong volcanic region,with special attention to filtering and noise reduction system related with infrasound observations.Finally,a discussion is made about the next step for the research.
Supported by the fundamental research and development project of the Institute of Geophysics,CEA[CD2]"Comparative experiment of seismo-acoustic array observation in key areas for earthquake surveillance and protection",a seismo-acoustic array,with 4 sub-stations arranged as a triangle (the 4th of which is located near the center of the triangle) was deployed in Tengchong volcanic region of Yunnan Province.The broadband seismometer and infrasonic sensor are jointly deployed,for the first time,in a seismically active area and volcanic area.This paper provides a detailed introduction to the installation and components of the seismo-acoustic array in Tengchong volcanic region,with special attention to filtering and noise reduction system related with infrasound observations.Finally,a discussion is made about the next step for the research.
引文
[1]皇甫岗,姜朝松.腾冲火山研究.昆明:云南科技出版社,2000
[2]谢金来,谢照华.1993年7月12日日本北海道地震次声波.声学学报,1996,21(1):55-61
[3]Le Pichon A,Guibert J,Vega A,et al.Ground-coupled air waves and diffracted infrasound from the Arequipa earthquake of June23,2001.Geophys.Res.Lett.,2002,29(18):1886,doi:10.1029/2002GL015052
[4]Le Pichon A,Guibert J,Valles M,et al.Infrasound imaging of the Kunlun Mountains for the great2001China earthquake.Geophys.Res.Lett.,2003,30(15):1814,doi:10.1029/2003GL017851
[5]Le Pichon A,Herry P,Mialle P,et al.Infrasound associated with2004—2005large Sumatra earthquakes and tsunami.Geophys.Res.Lett.,2005,32:L19802,doi:10.1029/2005GL023893
[6]Le Pichon A,Mialle P,Guilbert J,et al.Multistation infrasonic observations of the Chilean earthquake of2005June13.Geophys.J.Int.,2006,167:838-844
[7]Kim TS,Hayward C,Stump B.Local infrasound signals from the Tokachi-Oki earthquake.Geophys.Res.Lett.,2004,31:L20605,doi:10.1029/2004GL021178
[8]Mutschlecner J P,Whitaker R W.Infrasound from earthquake.J.Geophys.Res.,2005,110:D01108,doi:10.1029/2004JD005067
[9]苏昉,田维.2001年2—4月强地震的前兆次声波测量研究.地球物理学进展,2001,16(4):61-70
[10]苏昉,田维.2000年7—9月强地震的前兆次声波测量研究.地震研究,2002,25(1):11-19
[11]苏昉,唐林波.2001年1月强震的前兆次声波测量及机理探讨.地震研究,2002,25(2):130-139
[12]邵长金,唐炼,李相方.2003年日本北海道8.0级地震次声波特征研究.地震,2005,25(1):74-80
[13]Garcs M,Harris A,Hetzer C,et al.Infrasonic tremor observed at K墿lauea Volcano,Hawai′i.Geophys.Res.Lett.,2003,30(20):2023,doi:10.1029/2003GL018038.
[14]Daniels F B.Noise reduction line microphone for frequencies below1cps.J.Acoust.Soc.Am,1959,31:529-531
[2]谢金来,谢照华.1993年7月12日日本北海道地震次声波.声学学报,1996,21(1):55-61
[3]Le Pichon A,Guibert J,Vega A,et al.Ground-coupled air waves and diffracted infrasound from the Arequipa earthquake of June23,2001.Geophys.Res.Lett.,2002,29(18):1886,doi:10.1029/2002GL015052
[4]Le Pichon A,Guibert J,Valles M,et al.Infrasound imaging of the Kunlun Mountains for the great2001China earthquake.Geophys.Res.Lett.,2003,30(15):1814,doi:10.1029/2003GL017851
[5]Le Pichon A,Herry P,Mialle P,et al.Infrasound associated with2004—2005large Sumatra earthquakes and tsunami.Geophys.Res.Lett.,2005,32:L19802,doi:10.1029/2005GL023893
[6]Le Pichon A,Mialle P,Guilbert J,et al.Multistation infrasonic observations of the Chilean earthquake of2005June13.Geophys.J.Int.,2006,167:838-844
[7]Kim TS,Hayward C,Stump B.Local infrasound signals from the Tokachi-Oki earthquake.Geophys.Res.Lett.,2004,31:L20605,doi:10.1029/2004GL021178
[8]Mutschlecner J P,Whitaker R W.Infrasound from earthquake.J.Geophys.Res.,2005,110:D01108,doi:10.1029/2004JD005067
[9]苏昉,田维.2001年2—4月强地震的前兆次声波测量研究.地球物理学进展,2001,16(4):61-70
[10]苏昉,田维.2000年7—9月强地震的前兆次声波测量研究.地震研究,2002,25(1):11-19
[11]苏昉,唐林波.2001年1月强震的前兆次声波测量及机理探讨.地震研究,2002,25(2):130-139
[12]邵长金,唐炼,李相方.2003年日本北海道8.0级地震次声波特征研究.地震,2005,25(1):74-80
[13]Garcs M,Harris A,Hetzer C,et al.Infrasonic tremor observed at K墿lauea Volcano,Hawai′i.Geophys.Res.Lett.,2003,30(20):2023,doi:10.1029/2003GL018038.
[14]Daniels F B.Noise reduction line microphone for frequencies below1cps.J.Acoust.Soc.Am,1959,31:529-531
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