赵县地震台地表及深井地震计观测数据对比分析

由于城市化进程加快,人为干扰因素逐渐增多,地震观测数据质量受到严重的影响。通过对赵县地震台地表及深井地震计记录的数据进行幅频、功率谱分析,并对比二者的地震监测能力等,分析发现:与地面观测相比,深井地震计在避免噪声及提高地震监测能力范围方面具有更大优势,观测数据精度能提高1—2个数量级。通过总结分析地表及深井地震计记录的优缺点,为测震台网今后的发展方向提供依据。

Comparison and analysis of seismic data of the ground and the deep sesimographs at Zhaoxian Seismic Station

Due to the acceleration of urbanization, human disturbance factors gradually increase, and the data quality of earthquake observation is seriously affected. By the spectrum analysis, power spectrum analysis and the comparison of seismic monitoring ability of the ground and the deep seismic data of Zhaoxian Seismic Station, it is found that, compared with the ground observation, deep observation can improve the precision of 1-2 orders of magnitude. At the same time, the deep seismometer has greater advantages in avoiding noise and monitoring ability. Through summarizing both of advantages and disadvantages, it provides the basis for seismic network development direction in the future.