论文部分内容阅读
本文对子午工程感应式磁力仪(SCM)与传统磁通门磁力仪(GM4)记录的磁暴基本特征进行对比分析,GM4记录的波形不论在磁场平静时还是在磁暴时,各个台站波形相关性很高,GM4记录到完整的磁暴变化形态,SCM记录的磁暴非常规磁暴变化形态.SCM在磁场平静时波形相关性很低,磁暴时各个台站波形相关性很高,可能是由于SCM分辨率较高,磁场平静时记录到更多的台站背景噪声.GM4和SCM磁暴时,Z分量急始方向都向上,且各个台站一致,GM4的H水平分量急始方向向上,而SCM的X分量急始方向朝下,这是因为GM4的H分量探头朝向地磁北极,而SCM探头方向朝向地理北极.磁暴时,GM4的H差分结果与SCM的X分量数据相关性很高,GM4的Z分量与SCM的Z分量差分结果相关性并不高,这可能是因为:(1)磁暴时H水平分量或者X分量表现比较明显,而Z分量虽然有变化,但是变化不如H分量剧烈,(2)GM4的三分量探头集成在一个探头盒中,且有水平泡等保证水平,正交性较好,而SCM的Z分量安装时是安装在一个垂直的坑中,而三分量是否严格正交没有经过检验,可能由于安装方法存在误差,造成GM4的Z分量差分结果与SCM相关性不高.
In this paper, the basic characteristics of magnetic storms recorded by SCM and GM4 are compared and analyzed. The waveform recorded by GM4 is correlated with the waveform of each station regardless of whether the magnetic field is calm or not. GM4 recorded a complete pattern of magnetic storm changes, SCM records the unconventional magnetic storms morphological changes.SCM in the magnetic field calm waveform correlation is very low, magnetic storms at each station waveform correlation is high, probably due to the SCM resolution And the station background noise was recorded when the magnetic field was quiet.GM4 and SCM magnetic storms, the Z component emergent direction upward, and each station is consistent, GM4 H component of the horizontal component of the beginning of emergency, and SCM X The component emergent orientation is downward because the H component of GM4 is oriented toward the geomagnetic north pole and the SCM probe is oriented towards the geographic north pole.Highly correlated with the X component of GMM and the Z component of GM4 The correlation between the Z component and the SCM is not high, which may be due to: (1) H component or X component is more obvious during the magnetic storms, while the Z component is not as volatile as the H component, (2) GM4 three-component probe integrated in A probe box, and the level of bubble and other assurance level, orthogonality is better, and SCM Z component installation is installed in a vertical pit, and the three components are strictly orthogonality has not been tested, may be due to the installation method There is error, resulting in the GM4 Z-component differential results and SCM correlation is not high.