云南腾冲火山区地震/次声台阵建设

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。

The construction of seismo-acoustic array in Tengchong volcanic region of Yunnan

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.