地磁场交变分量的地震前兆探索
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摘要
阐述了阿拉木图预报试验场地磁动态观测时间序列中异常识别方法应用的主要成果。以往所利用稳定地磁场中异常探索的方法,在北天山条件下按构造磁效应未能得到积极的结果。在许多情况下,地磁场谱特性的相关函数、子波分析及异常和噪音的分位量纲计算都能识别作为地震前兆的中、短期异常。
The paper showed the main achievements of the application of abnormal recognition methods in time series of geomagnetic dynamic observation in Almaty experimental field.In the past,the methods of searching anomalies used in stable geomagnetic field,in the light of tectonomagnetic effect,couldn't get positive results under north Tienshan mountain conditions.On various occasions,the medium-short term earthquake precursory anomalies could be recognized with the help of the related function of geomagnetic spectrum characteristics,wavelet analysis,quantile dimension calculation of anomaly and noise.
The paper showed the main achievements of the application of abnormal recognition methods in time series of geomagnetic dynamic observation in Almaty experimental field.In the past,the methods of searching anomalies used in stable geomagnetic field,in the light of tectonomagnetic effect,couldn't get positive results under north Tienshan mountain conditions.On various occasions,the medium-short term earthquake precursory anomalies could be recognized with the help of the related function of geomagnetic spectrum characteristics,wavelet analysis,quantile dimension calculation of anomaly and noise.
引文
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