摘要
对西安地震台连续重力观测数据预处理的基础上,扣除大气压强的负荷效应,采用合成潮汐法滤除重力信号中的重力固体潮,获得重力非潮汐量,在此基础上对重力仪记录的地震信号在时域和频域进行分析,并与同台址的地震仪记录同一地震的记录进行对比,结果表明,在重力非潮汐量中,可以更清晰识别地震信号,但其记录能力略逊于地震仪记录地震信号的能力。
On the basis of preprocessing the continuous gravity observation data of Xi'an Seismological Station,the loading effect of atmospheric pressure is deducted,and the synthetic tidal method is used to filter out the gravity solid tide in the gravity signal to obtain the gravity non-tidal volume,based on which the seismic signal recorded by the gravimeter is analyzed in the time and frequency domains and compared with the record of the same earthquake recorded by the seismometer at the same site.The results show that in the gravity non-tidal quantity,the seismic signal can be identified more clearly,but its recording ability is slightly lower than that of the seismograph.
作者
刘盼
陈冬柏
LIU Pan;CHEN Dongbai
出处
《科技创新与应用》
2022年第18期75-78,共4页
Technology Innovation and Application
基金
中国地震局“监测、预报、科研三结合”课题(3JH-2021048)
陕西省地震局启航与创新基金课题(QC202011)联合资助。
关键词
连续重力观测
重力非潮汐量
地震信号
频谱特征
continuous gravity observation
gravity non-tidal quantity
seismic signal
spectrum characteristic
