高台台JCZ-1地震计LP通道数据固体潮信息提取*
李兴坚1,2,3,李建康1,许玉红4,冯红武1,刘小明1,雷功明4

(1.甘肃省地震局 高台地震台,甘肃 高台 734300; 2.中国地震局 兰州地震研究所,甘肃 兰州 730000; 3.中国地震局 兰州地球物理野外观测站,甘肃 兰州 730000; 4.甘肃省地震局 嘉峪关中心地震台,甘肃 嘉峪关 735100)

JCZ-1超宽频带地震计; 固体潮; LP通道; 垂直分量; PET重力仪

Solid Tide Information Extracted from Data in LP Channel Recorded by JCZ-1 Seismometer at Gaotai Station
LI Xing-jian1,2,3,LI Jian-kang1,XU Yu-hong4,FENG Hong-wu1,LIU Xiao-ming1,LEI Gong-ming4

(1. Gaotai Seismic Station,Earthquake Administration of Gansu Province,Gaotai 734300,Gansu,China)(2. Lanzhou Institute of Seismology,CEA,Lanzhou 730000,Gansu,China)(3. Lanzhou National Geophysical Research Station Field of Scientific Observation,CEA,Lanzhou 730000,Gansu,China)(4. Jiayuguan Central Seismic Station,Earthquake Administration of Gansu Province,Jiayuguan 735100,Gansu,China)

JCZ-1 ultra-broadband seismometer; solid tide; LP channel; vertical component; PET gravimeter

备注

通过对甘肃省高台地震台JCZ-1超宽频地震计LP通道垂直分量记录进行分析,提取了固体潮汐信息,并与PET重力仪观测数据及重力固体潮理论值提取的固体潮汐信息进行了对比。结果 显示:JCZ-1地震计LP通道垂直分量信号记录到了明显的固体潮汐信息,通过FFT频谱分析提取到了清晰的日波、半日波振幅谱,而1/3波振幅谱反应不明显,该结果与同台的PET重力观测数据及重力固体潮理论值所求得的结果相一致。

We compared the solid tides extracted by the vertical component recording in LP vertical channel recorded by JCZ-1 seismometer at Gaotai Station,the observational data of PET gravimeter and the gravity solid tide theoretical value. The results showed as follows:the solid tide information was recorded obviously by the vertical component recording in LP vertical channel by JCZ-1 seismometer. The clear amplitude spectrum of the day wave and half-day wave through FFT spectral analysis was obtained,while the amplitude spectrum of the 1/3 day wave was not obvious. This result was consistent with that of the observational data of PET gravimeter and the gravity solid tide theoretical value at Gaotai Station.