THE ANALYSIS AND APPLICATION OF EARTH PULSATION AT THE STATIONS OF TIANJIN SEISMIC NETWORK
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摘要: 利用地脉动信号波形数据,计算了天津台网31个地震台站背景噪声水平、地动噪声功率谱,进一步研究了台站观测环境随时间和季节的变化情况,并对整个台网的监测能力进行了重新估算,同时也对天津周边的一些大震前的地脉动进行了分析,希望能捕捉到明显的震前异常变化。Abstract: Based on wave form data of earth pulsation,the background voice level of 31 seismic stations in Tianjin is calculated,the power spectrum is given.Furthermore,the station environment changes with time and season is studied,the monitor ability of whole network is re-estimated.Earth pulsation before some strong earthquakes in Tianjin area is analyzed in order to catch obvious anomaly.
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Keywords:
- earth pulsation /
- power spectrum /
- monitor ability /
- analysis of anomaly
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[1] 刘瑞丰, 陈培善, 党京平, 等.宽频带数字地震记录仿真的应用[J].地震地磁观测与研究, 1997, 18(3):7-12. [2] 任枭, 刘瑞丰, 梁建宏, 等.国家数字地震台网台站地动噪声功率谱分析[J].地震地磁观测与研究, 2004, 25(1):23-28. [3] 李克, 赵仲和, 宋彦云, 等.地震学与地震观测[M].北京:地震出版社, 2007:211. [4] 姜长宁, 王保太, 缪发军, 等.江苏数字地震台网台址噪声谱分析[J].地震学刊, 2001, 21(1):36-39.
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