包头地震台形变干扰分析

整理包头地震台伸缩仪、水管倾斜仪和水平摆倾斜仪观测资料,依据干扰类型分析发现,风扰、雷电降雨、温度与气压、标定与地震,仪器故障与停电是影响3台仪器观测的主要因素,干扰特征主要表现为缺记断记、数据突跳、尖脉冲、高频干扰、台阶、毛刺,大幅度变化、曲线加粗和趋势性变化等。不同类型观测仪器对干扰的响应不同,识别并剔除干扰,有利于地震观测数据应用,对地震异常判定具有参考价值。

Analysis of deformation interference at Baotou Seismic Station

According to the analysis of the observations of extensometer, water tube tiltmeter and horizontal pendulum tiltmeter, it is found that wind disturbance, lightning, rainfall, temperature and pressure, calibration and earthquake, instrument failure and power failure are the main factors that affect the observation of three instruments at Baotou Seismic Station. The characteristics of interference are missing, data jump, sharp pulse, high frequency interference, step, glitch, signifcant change, rough curve, trend changes and so on. Different types of observation instruments have different responses to interference, the identifcation and elimination of the interference is conducive to the application of seismic observation data and the analysis of seismic anomaly.