磁暴期间地磁场数据与地电场数据的相关性研究

Research on the Correlation between the Geomagnetic Field Data and the Geoelectric Field Data during Magnetic Storm

通过研究山西省太原站、大同站、忻州站、临汾站四个台站在磁暴发生期间地磁场数据和地电场数据的变化特征,将2015年6月23日和2015年8月15日磁暴期间的地磁场一阶差分后的数据、地电场观测数据作为研究数据,对其进行相关性分析和傅里叶变换后幅值的相关性分析,研究结果表明:① 本次研究中两次磁暴中地磁场的一阶差分值与地电场的观测值表现出明显的相关性;② 在地磁场一阶差分与地电场原始值的相关性研究中,临汾站的相关系数明显低于其他台站场地;在地磁场幅值与地电场幅值的相关性研究中,未表现出明显的场地差异。

The Research studies the change characteristics of the geomagnetic field data and geoelectric field data of four stations in Shanxi Province during the magnetic storm, namely Taiyuan Station, Datong Station, Xinzhou Station and Linfen Station. The research data are from the first order difference data of the geomagnetic field and the observation data of the geoelectric field during the magnetic storm on June 23, 2015 and August 15, 2015. And the research method is to carry out correlation analysis on research data and correlation analysis on amplitude of research data after Fourier transform. Results show that: ① In this study, the first-order difference data of the geomagnetic field in the two geomagnetic storms has an obvious correlation with the observed value of the geoelectric field;② In the study of the correlation between the first order difference of the geomagnetic field and the original value of the geoelectric field, the correlation coefficient of Linfen Station is obviously lower than the other stations;In the study of the correlation between the amplitude of geomagnetic field and the amplitude of geoelectric field, there is no obvious difference between the stations.