JCZ-1T超宽频带地震计作为综合观测仪器的拓展应用  

Application of JCZ-1T Ultra Broadband Seismometer as an instrument for integrated observation

作　　者：蔡亚先[1] 吕永清[1] 程骏玲[1] 喻节林[1] 吕品姬[1] 

机构地区：[1]中国地震局地震研究所,中国武汉430071

出　　处：《地震地磁观测与研究》2007年第5期29-34,共6页Seismological and Geomagnetic Observation and Research

摘　　要：JCZ-1T超宽频带地震计具有全频带覆盖特性,其低频端输出延伸到固体潮汐,提出了获取稳定的低频端数据的观测条件。利用地震计LP通道连续观测数据中的垂直分向数据经过处理获得的重力资料,以及水平分向数据经过处理获得的倾斜资料做了Venedikov调和分析。对印尼8.7级大地震数据进行处理,获得地球自由振荡的功率谱密度。仪器可获取与地震事件密切相关的综合观测数据。The bandwidth of JCZ-1T Ultra Broadband Seismometer covers whole observation band from high seismic frequency to solid tide. The observation condition to obtain stable low frequency data is suggested. The LP data from the vertical component and the horizontal component are processed to get the data of gravity and tilt solid tide. They are analyzed using Venedikov method. The data of a Indonesia large earthquake of Ms 8. 7 are processed, the PSD of Earth free oscillation is obtained. The instrument can take the integrated observation data of an earthquake event.

关 键 词：超宽频带 固体潮汐 地球自由振荡 综合观测 

分 类 号：P315.62[天文地球—地震学]