信阳台FHD地磁仪观测数据典型干扰识别及数据处理

Typical interference identification and data processing of observation data of FHD magnetometer in xinyang station

地震地磁观测数据的可靠性是及时准确从中挖掘出前兆异常信息的重要保障。然而在日常地磁观测数据处理过程中,经常会遇到观测数据记录曲线异常现象,这些异常现象,有的是地震信息异常,有的则是由于各种干扰引起的,因此,在数据处理过程中,正确区分和准确识别地磁观测数据中异常与干扰、造成干扰的原因以及对干扰数据的处理,是在观测数据预处理中所应具备的能力,同时也能够为地震监测与预报提供真实准确的信息支持。

The reliability of seismic and geomagnetic observation data is an important guarantee for timely and accurate excavation of precursor anomaly information.However,in the process of daily geomagnetic observation data processing,abnormal phenomena of observation data recording curves are often encountered.Some of these abnormal phenomena are seismic information anomalies,and some are caused by various interferences.Therefore,in the process of data processing,it is necessary to correctly distinguish and accurately identify anomalies and interferences in geomagnetic observation data,the causes of interferences,and the processing of interference data,which are the capabilities that should be possessed in the preprocessing of observation data,and can also provide true and accurate information support for earthquake monitoring and prediction.