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首页> 外文期刊>Izvestiya. Physics of the solid earth >Geomagnetic and Ionospheric Responses to the Interplanetary Shock Wave of March 17, 2015
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Geomagnetic and Ionospheric Responses to the Interplanetary Shock Wave of March 17, 2015

机译：2015年3月17日星际冲击波的地磁和电离层响应

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The propagation of perturbation caused by the interplanetary shock wave of March 17, 2015 from the solar wind through the magnetosheath, magnetosphere, and ionosphere down to the Earth's surface is analyzed. The onboard satellite measurements, global magnetometer network data, and records by the receivers of the global positioning system (GPS) providing the information about the total electron content (TEC) of the ionosphere are used for the analysis. By the example of this event, various aspects of the influence of the interplanetary shock wave on the near-Earth environment and ground-based engineering systems are considered. It is shown which effects of this influence are well described by the existing theoretical models and which ones need additional research. The formation of the fine structure of the magnetic impulse of the storm sudden commencement (SC)the preliminary impulse (PI) and main impulse (MI)is considered. The MI and compression of the magnetospheric magnetic field is observed by the GOES and RBSP satellites and on the geomagnetically conjugate stations; however, the PI was only noted on the Earth. The PI was detected in the afternoon sector practically simultaneously (within 1 min) with the shock wave impact on the magnetopause. The wave's response to the SC includes the strongly decaying resonant oscillations of the magnetic shells and the magnetoacoustic cavity mode. This study supports the possibility of detecting the ionospheric response to the SC by the GPS method. The TEC response to the MI was detected in the auroral latitudes although not on every radio path. The TEC modulation can be associated with the precipitation of superthermal electrons into the lower ionosphere which is undetectable by riometers. The burst in the intensity of the geomagnetically induced currents caused by an interplanetary shock wave turns out to be higher than the currents during the storm's commencement, although the SC's amplitude is noticeably lower than the ampl
机译：分析了2015年3月17日星际冲击波扰动从太阳风穿过磁性惰性，磁圈和电离层到地球表面的繁殖。通过全球定位系统（GPS）的接收器的船上卫星测量，全局磁力计网络数据和记录提供有关电离层的总电子含量（TEC）的信息用于分析。通过该事件的示例，考虑了近地区环境和基于地基工程系统的行星冲击波的各种方面。结果显示了这种影响的哪些影响是通过现有的理论模型良好描述的，并且需要额外的研究。考虑了风暴突然开始（SC）初步脉冲（PI）和主要脉冲（MI）的磁脉冲的细结构。通过GUS和RBSP卫星和地磁共轭站观察磁体磁场的MI和压缩;但是，PI仅在地球上注明。在下午部门实际上（1分钟内）在下午的扇区中检测到PI，对磁性迁移的冲击波影响。波对SC的响应包括磁性壳和磁声腔模式的强烈衰减的谐振振荡。本研究支持通过GPS方法检测对SC的电离层响应的可能性。在极光纬度地区检测到对MI的TEC响应，尽管不在每个无线电路径上。 TEC调制可以与高温电子沉淀到下电离层的沉淀相关，这通过分度计不可检测。由于行星际冲击波引起的地磁诱导电流强度的突发变出在风暴开始期间的电流高，但SC的幅度明显低于幅度

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