Statistical analysis of ground based magnetic field measurements with the field line resonance detector
Statistical analysis of ground based magnetic field measurements with the field line resonance detector
复制标题
使用场线谐振探测器对地面磁场测量进行统计分析
DOI：
10.5194/angeo-26-3477-2008
复制
发表时间：
2008
影响因子：
1.9
通讯作者：
I. J. Rae
中科院分区：
文献类型：
--
作者：
F. Plaschke;K. Glassmeier;O. D. Constantinescu;I. Mann;D. Milling;U. Motschmann;I. J. Rae
本文介绍场线共振探测器（FLRD），这是一种专门用于估计叠加波场中场线共振（FLR）相结构谱能量密度的望远镜技术。场线共振检测器能够检测并正确表征波场的多个叠加FLR结构，因此构成了ULF脉动研究中新的强有力的工具。在我们的工作中，我们从经典的波望远镜波束形成器的技术，并提出了一年的地面磁强计数据从加拿大磁强计网络CANOPUS，现在被称为CARISMA的统计分析。统计分析表明，FLRD是能够检测和表征叠加或隐藏的FLR结构在大多数检测到的超低频脉动事件，因此，一年的统计数据库是非常全面的。这一分析的结果证实了以前的FLR表征的结果，并进一步允许详细的广义色散分析的FLR。
In this paper we introduce the field line resonance detector (FLRD), a wave telescope technique which has been specially adapted to estimate the spectral energy density of field line resonance (FLR) phase structures in a superposed wave field. The field line resonance detector is able to detect and correctly characterize several superposed FLR structures of a wave field and therefore constitutes a new and powerful tool in ULF pulsation studies. In our work we derive the technique from the classical wave telescope beamformer and present a statistical analysis of one year of ground based magnetometer data from the Canadian magnetometer network CANOPUS, now known as CARISMA. The statistical analysis shows that the FLRD is capable of detecting and characterizing superposed or hidden FLR structures in most of the detected ULF pulsation events; the one year statistical database is therefore extraordinarily comprehensive. The results of this analysis confirm the results of previous FLR characterizations and furthermore allow a detailed generalized dispersion analysis of FLRs.