Abstract

Results of studying different-scale ionospheric irregularities on the basis of multi-instrumental data, obtained in the East Siberian region of Russia during the geomagnetic storm of May 27–28, 2017, are presented. Spatial inhomogeneities of electron density in the ionosphere were observed through data from ground-based receivers of signals of global navigational satellite systems and on the basis of direct measurements of electron density in low-orbit satellites. An intense radio aurora was seen in UHF radar data just after the initial phase of geomagnetic storm. At the same time, we recorded fluctuations of the total electron content from data of GPS receivers and the presence of E-layer irregularities by data of the ionosonde in Norilsk. The time of irregularity recording by different instruments is consistent with the spatiotemporal changes in field-aligned currents of the second zone, obtained from data of AMPERE low-orbit satellite system.

中文翻译：

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2017年5月27日至28日的地磁风暴期间，东西伯利亚东部地区电离层异常

摘要

提出了基于多仪器数据研究不同尺度电离层不规则性的结果，这些数据是在2017年5月27日至28日的地磁风暴期间在俄罗斯东西伯利亚地区获得的。通过从全球导航卫星系统信号的地面接收器获得的数据以及在低轨道卫星中直接测量电子密度的基础上，观察到了电离层中电子密度的空间不均匀性。在地磁风暴开始之后不久，UHF雷达数据中就看到了强烈的无线电极光。同时，我们通过Norilsk中的离子探空仪数据记录了GPS接收器数据中总电子含量的波动以及E层不规则性的存在。