南京地震台甚宽频地震计观测性能研究OACSTPCD
Observation Performance of Very Broadband Seismometers at Nanjing Seismic Station
为深入研究甚宽频地震计观测性能,利用南京地震台GL-S120型和ITC-120A型两套甚宽频地震计开展对比观测.从台站记录波形、相关性以及台基噪声等方面开展差异性分析,结果表明:ITC-120A型地震计不易受外界干扰,尤其垂直向比较明显;两套地震计相关性夜晚安静时段优于白天;通过计算PSD(功率谱密度)分析台基噪声,结果表明GL-S120型地震计低频段噪声水平随着外界干扰增强而显著上升,导致GL-S120型地震计记录中小级远震效果较差,震相不易识…查看全部>>
In order to further study the observation performance of very broadband seismometers,two types of very broadband seismometers(GL-S120 and ITC-120A)at Nanjing Seismic Station were used to carry out comparative experiments.The difference analysis is carried out from the aspects of the waveform records at the station,correlation and ambient noise.The results indicate that ITC-120A is not susceptible to ambient interference,especially in the vertical direction.T…查看全部>>
张敏;宫杰;立凯;张扬;居海华;胡光武
江苏省地震局,南京 210014江苏省地震局,南京 210014宿迁地震监测中心站,连云港 222061江苏省地震局,南京 210014江苏省地震局,南京 210014南京地震监测中心站,南京 210014
地球科学
甚宽频地震计自噪声台基噪声相关性
Very broadband seismometerSelf-noiseAmbient noiseCorrelation
《华南地震》 2024 (3)
51-58,8
江苏省地震局青年科学基金项目(202206)中国地震局地震科技星火计划(XH21011)联合资助.
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